REVISION OF BAUHINIA SUBGENUS PHANERA SECTION SCHNELLA (CERCIDEAE: CAESALPINIOIDEAE: FABACEAE)

2009·15.8 MB·English

by  Richard P Wunderlin

PHANERA
SUBGENUS
OF
BAUHINIA
REVISION
FABACEAE)
SCHNELLA CAESALPINIOIDEAE:
SECTION (CERCIDEAE:
and
Wunderlin M.
Richard
Richard
Eilers
P.
&
Department of Microbiology Molecular Biology
Cell Biology,
ofSouth
University Florida
BSF218
4202 East Fowler Avenue,
Tampa, 33620-51
Florida 50, U.S.A.
330
with approximately
The genus Caesalpinioideae: Fabaceae) species
pantropical Bauhinia (Cercideae:
L.
L„ Kurz [=Elayuna Wunderlin], Barklya
consists of four subgenera: Bauhinia Piliostigma (Hochst.) (Raf.) (F.
denned by
and Phanera Wunderlin (Wunderlin 1987). Bauhinia subgenus Phanera, as
(Lour.) et
Muell.), al.
Wunderlin pantropical group consisting primarily of tendriled lianas in 11 sections, of
a
(1987),
et is
al.
New
World The
which two, Schnella and Caulotretus, are confined to the tropics. other nine sections are
from by inconspicuously nerved
Old World. Section distinguished Caulotretus five-nerved or
Schnella its
is
and
calyx, an indehiscent or tardily dehiscent, thin-valved fruit, the stigma usually peltate or capitate, the
pollen sexine with conspicuous supratectal processes. In contrast, Caulotretus has a conspicuously 10- or
woody and merely
15-nerved dehiscent, usually the stigma usually oblique, the pollen sexine
calyx, a fruit,
& &
rugulose or Bauhinia herrerae (Britton Rose) Standi. Steyerm., a species placed in section
perforate.
which two
by Wunderlin (1987) in several characters otherwise distinguish the
differs
Caulotretus et
al.
by having stigma and an indehiscent, thin-valved as found in section Schnella, but
sections a peltate fruit
and
has calyx pollen characters that clearly place in section Caulotretus.
the distinctive
it
DNA
(Hao
Recent molecular data based on ITS sequences of nuclear ribosomial et 2003) suggests
al.
New
World from
subgenus Phanera polyphyletic and that the Phanera forms a clade distinct the rest
that
is
subgenus Phanera in the Old World. Recently Lewis and Forest (2005) recognized Barklya F. Muell.,
of
and
Gigasiphon Drake, Lasiobema (Korth.) Miguel, Phanera Lour., Piliostigma Hochst., Tylosema (Schweinf.)
&
by
supported
from However, only partly
Torre Hillc. as genera distinct Bauhinia. that classification is
&
needed seems
molecular data (Lewis Forest 2005). Since further study to resolve this issue, best at
is it
than
time recognize Bauhinia rather several segregate genera.
this to
s.l.
Two can be although they not formally recognized
groups within section Schnella distinguished, are
and
and from the others in characters of the calyx
Bauhinia trichosepala differ
here. lilacina, B. radiata, B.
pollen morphology. The calyx of these species prominently 5 -nerved and the pollen with the supratectal
is
The second group
processes aligned on ridges along the colpi margins. consists of B.flexuosa, B. maximiliani,
and They have an inconspicuously 5-nerved calyx and the pollen
poiteauana, smilacina.
B. microstachya, B. B.
on tectum between and with no prominent
with processes subequally disposed the the colpi
the supratectal
margins.
ridges along the colpi
620 Journal of the Botanical Research Institute of Texas 3(2)
&
Bauhinia Phanera Kurz Schnella Hook, Gen. PL
L. subg. (Lour.) (Raddi) Benth., in Benth. 1:576.
sect.
f.,
PL nom.
Caulotretus Rich, ex Schott, in Sprengel, Syst. Veg. 4(2):406. 1827. Caulotretus sect. Eucauhtretus Endlicher, Gen. 1317. 1840,
Woody
with woody, nodal Leaves with minute trichomes, the blade en-
vines intrastipular
tendrils. petiolate,
weak
or bilobate, the midrib with to moderately developed secondary veins, the stipules linear-lanceolate,
tire
and
caducous. Inflorescences terminal or subterminal axillary, spiciform racemes, these often paniculiform
hypanthium
through reduction of the leaves. Flowers with the turbinate, nectariferous disc absent; calyx
cupulate or campanulate, either conspicuously 5 -nerved with the nerves extending beyond the lobe apex as
mucro inconspicuously 5 -nerved and with the nerves not extending
a short or as a setaceous projection, or
beyond 2-3 expanding
the lobe apex, the calyx anthesis either splitting irregularly into lobes as the pet-
at
force the calyx rupture or expanding into 5 lobes, nectariferous; petals clawed, subequal; stamens
als to
5,
in two ranks with the alternate ones (inner whorl) slightly shorter, the filaments slightly
10, free, all fertile,
upward opening by with
curved, the anthers oblong, longitudinal pollen spheroid, 3-colporate, the
slits;
tectum granular or microrugulate, often microperforate, with spheroid supratectal processes; ovary with a
short gynophore free from the hypanthium, the style terminated by a small, peltate, and asymmetric stigma.
Fruit thin-valved, samaroid, indehiscent or tardily dehiscent, with the calyx persistent; seeds with 2
1(2),
short, funicular, aril-lobes.
cm
4 6.5-7 chartaceous smilacina
2. Fruit narrowly elliptic (at least times as long as wide), long, B.
cm
3-6
2. Fruit elliptic-reniform (2 times as long as wide), long, subcoriaceous.
mm
cm
poiteauana
3. Flower buds ca. 3 long; fruit 2.5-3.5 long B.
mm
cm
Flower buds 4-5 long; 4.5-6 long B. maximiliani
fruit
3.
Calyx inconspicuously 5-nerved, the
nerv<
\.
cm cm
Branches conspicuously flexuous; leaves .5-)2.5-3.5 long; petals glabrous; 2.5-3 long
fruit
5.
(1
microstachya
B.
mm
Calyx nerves undulate, winged toward the apex, extending 3-5 beyond the apex B. trichosepala
7.
Bauhinia flexuosa Moric, PL Nouv. Amer. 1840.
80, 53. Schnella jlexuosa (Moric.) Walp., Repert. Bot. Syst. 5:572.
t.
Woody, tendriled vine climbing to 5 m; young branches subterete, flexuous, strigose, becoming glabrate in
age, with conspicuous lenticels, the older stems flattened. Leaves with the blade bilobed 1/8-1/3 the length,
cm cm
suborbicular, (1.5-)2.5-3.5 long, (1.5-)2-4.5 wide, 7-nerved, chartaceous, the lobes parallel or
slightly divergent, the lobe apex rounded, the blade base rounded to cordate, the upper surface glabrous or
glabrate, the lower surface sparsely strigose or hirsute, especially along the veins, glaucous, the petiole 1-1.5
mm
cm
long, loosely strigose, the stipules ovate-lanceolate, ca. 0.5 long, strigose. Inflorescence terminal or
cm
2-10
subterminal and dense, spiciform racemes, sometimes paniculiform, long, densely
axillary, in short,
mm
red-brown buds subgiobose, 2-3 long and wide, densely red-brown the pedicel 1.5-2
strigose,
strigose;
mm
mm mm
hypanthium
and depressed-cupulate,
long, the bract bracteoles lanceolate, ca. 0.5 long; ca. 1
mm
2-3
long, the inner surface glabrous; calyx cupulate, long, inconspicuously 5-nerved, the nerves not
621
Wunderlin and Bauhinia subgenus Phanera sect. Schnella
Eilers,
red-brown
extending beyond the apex, 2- to 5-lobed, the lobes triangular-ovate, the inner surface sparsely
mm mm
mm
4-5
6-7 wide, the claw 1-1.5 long, glabrous,
broadly long,
petals white, spatulate, ca.
strigose;
mm
mm
3-4
3-5
stamens the filament long, glabrous,
apex rounded, long,
blade concave, the glabrous;
the
mm
tectum microrugulate, often
pollen spheroid, 3-colporate, the
the anther oblong, long, glabrous;
ca. 1
mm
gynophore
gynoecium
the
with depressed, spheroid supratectal processes; ca. 5 long,
microperforate,
mm
mm
red-brown
red-brown the ovary 2.5-3 long, short-hirsute, the style ca.
short-hirsute,
long,
ca. 1
mm
cm cm
2.5-3 1.2-1.4 wide, the apex apiculate with the
long,
long, glabrous. Fruit elliptic-reniform,
1.5
brown
reddish
or
somewhat oblique or base, the valves chartaceous, reticulate, light
style style
persistent,
mm
3-4
red-brown
gynophore densely
brown on the margin, 1-seeded, the long, strigose;
especially
strigose,
mm mm
mm
seeds suborbicular to broadly reniform, ca. 9 long, ca. 11 wide, ca. 1 thick.
and dry
and ecology.— Brazil (Bahia and Minas Gerais). In Caatinga seasonally forests at ca.
Distribution
450 m. Flowering and fruiting in April.
by
most microstachya but distinguished smaller leaves
This rare species closely related to B. is its
is
cm cm
cm cm 4-7 and by
long (4-)7-8(-10) long), smaller fruit (2.5-3 long vs. long),
(1.5-)2.5-3.5 vs. its
conspicuously flexuous stems.
its
N
km Bom
Specimens examined: BRAZIL. Bahia: basin of the upper Rio Sao Francisco, ca. 35 of Jesus de Lapa on the main road to Iboti-
Apr 12622
rama, 450 m, 19 Apr 1980, Harley d. 21551 (K, MEXU). Minas Gerais: between Inficionado and Caraga, 12 1882, Glaziou
ca. et
becoming
Woody, vine climbing 4 m; young branches subterete, densely red-brown tomentose,
tendriled to
sometimes Leaves with the
with conspicuous the older stems flattened, perforate.
sparsely so in age, lenticels,
cm cm
7 wide, 9-nerved, subcoriaceous, the lobes
blade bilobed 1/3 the length, suborbicular, ca. 6.3 long, ca.
the lobe apex rounded, the blade base cordate, the upper surface sparsely white-pilose, the
divergent,
slightly
cm
red-brown tomen-
on
lower surface red-brown tomentose, especially the veins, the petiole ca. 2.6 long,
mm
and
subterminal
red-brown tomentose. Inflorescence terminal or
2
long,
the stipules lanceolate,
tose,
mm
cm
10-14 red-brown tomentose; buds broadly 6-7.5 long,
spiciform racemes, long, elliptic,
in
axillary,
mm
mm
beyond
4-6 wide, red-brown tomentose, with 5 mucronate nerve tips extending ca. 0.5 the apex,
mm
mm
hypanthium
2-2.5 cupulate,
and long;
the pedicel long, the bract bracteoles linear-lanceolate,
ca. 1
mm
mm
4 conspicuously 5-nerved, the
calyx campanulate, long,
2 the inner surface glabrous; ca.
long,
ca.
mm
beyond the lobes triangular,
extending the apex, irregularly splitting into 5 lobes,
nerves usually 0.5
ca.
mm mm
4-6
13-15
wide, the
long,
red-brown spatulate,
the inner surface strigose; petals lilac-colored,
mm
apex and
apex emarginate, with of trichomes the
claw long, glabrous, the blade concave, the a tuft at
1
mm
mm
trichomes near the base; stamens 10-12 long, the filament 7-9 long, glabrous, the anther
scattered
mm
with
tectum microrugulate, supratectal
pollen spheroid, 3-colporate, the
oblong, 3 long, glabrous;
ca.
mm
mm
gynophore 1-2
gynoecium
the long,
processes along the marginal ridges of the colpi; ca. 11 long,
mm
4-4.5
red-brown tomentose, the
densely red-brown tomentose, the ovary 4.5 long, densely style
ca.
mm
not
red-brown tomentose except near the stigma. Fruit seen.
densely
long,
Etymology.—-The specific epithet in reference to the lilac-colored petals.
is
secondary Flowering in August.
and ecology.— Brazil (Bahia). In forest.
Distribution
with
Bahia colored
This species one of two species of section Schnella in petals. It is
distinctive
is
by
with pink- smaller petals
distinguished from the other species or lilac-colored petals, its
trichosepala,
B.
mm
mm
and tomentose
(13-15 long 25-30 long), sepals not elongated into setaceous tips, its style.
vs. its
Bauhinia maximiliani Benth., in Martius, Bras. 15(2):207. 1870. Bmaria maximiliam (Benth.) A. Schmitz, Bull.
Fl.
Journal of the Botanical Research Institute of Texas
3(2)
623
Wunderlin and Bauhinia subgenus Phanera sect. Schnella
Eilers,
becoming
Woody, tendriled vine; young branches subterete, red-brown strigose, soon glabrate, the older
broadly
sometimes becoming Leaves with the blade entire, elliptic to
stems undulate, perforate.
flattened,
cm cm apex obtuse
6-12 3-6.5 wide, (3-)5-nerved, chartaceous to subcoriaceous, the to
lanceolate, long,
acuminate, the base cuneate subcordate, the upper surface glabrous, the lower surface sparsely short-
to
cm
hirsute to glabrous, lighter in color than the upper surface, the petiole 0.5-1 long, sparsely short-hirsute
mm
terminal
tomentellous. Inflorescence
long,
or tomentellous to glabrate, the stipules ovate-lanceolate, ca. 1
cm
10-25 red-brown
densely
subterminal and in spiciform racemes, often paniculiform, long,
or axillary,
mm
mm
4-5 and red-brown the pedicel long,
buds long wide, densely strigose, ca.
subglobose, 1
strigose;
mm
mm
hypanthium
0.5-1 depressed-cupulate,
and long; ca.
ovate-lanceolate, 1
the bract bracteoles
mm
3-4
inconspicuously 5-nerved, the nerves not
long, the inner surface glabrous; calyx cupulate, long,
beyond about the middle, the lobes triangular- ovate, the inner surface
extending the apex, (2-)3-lobed to
mm mm mm
4.5-6 3.5-4 wide, the claw 1-1.5 long,
long,
sparsely brown-strigose; petals white, spatulate,
on
apex rounded, sparsely red-brown strigose the outer surface or
blade concave, the
glabrous, the slightly
mm
mm
mm
4-6 4-5 anther oblong, long,
stamens the filament long, glabrous, the ca. 1.5
glabrous; long,
mm
mm
glabrous; pollen not seen; gynoecium ca. 5 long, the gynophore 2-3 long, red-brown short-hirsute
mm
mm
tomentose, the ovary 2.5-3.5 long, red-brown, short-hirsute, the style ca. 1.5 long, glabrous.
to
cm
cm
apex with
4.5-6 3.5-4.5 wide, the apiculate the persistent,
(immature long,
Fruit elliptic-reniform,
?)
red-brown
1-seeded, the
inconspicuously strigose,
oblique, style base, the valves subcoriaceous, reticulate,
mm
gynophore 4-7 red-brown seeds not seen.
long, strigose;
—
BRAZIL and In wet Fruiting in
and (Rio de Janeiro, Bahia, Espirito Santo). forest.
Distribution ecology.
and
June
July.
by few mainly
described from flowering material and presently represented only a fructifer-
Originally
by
and
known.
resembles poiteauana smilacina entire
poorly
ous specimens, maximiliani B. B. its
B. is still It
cm
by 3.5-4.5
and white from poiteauana larger fruit (4.5-6 vs. long),
leaves small, flowers. differs B. its
It
narrowly
by reniform in
though reniform, and from smilacina distinctive fruit (vs. elliptic B.
similarly B. its
by Vaz
placed
Fruiting material from Rio de Janeiro reported as B. smilacina (1989) is here.
smilacina).
Cum
Lanna
100-500 m, Oct-30 Nov naga and Itabuna, 29 Jul 1965, Sobriho 972 (US);
Gongogi 1915,
Basin,
1
Km km
along road between Sao Jose da Capelinha and Una, at 17 on BR 101, ca. 45 S of Itabuna, 2 Jun 1979, Mori 11897 (CEPEC, K, US);
624 Journal of the Botanical Research Institute of Texas
3(2)
m
Woody, tendriled vine climbing to 20 or more; young branches subterete, densely red-brown strigose,
soon becoming glabrous, with somewhat conspicuous the older branches flattened, with the center
lenticels,
undulate and sometimes perforate. Leaves with the blade bilobed 1/8-7/8 the length, suborbicular to ovate,
cm cm
widely
(4-)7-8(-10) long, (4.6-)5-6(8) wide, 9-nerved, chartaceous to coriaceous, the lobes parallel to
divergent, the lobe apex rounded, acute, or acuminate, the blade base cordate to rounded, the upper surface
red-brown
with few scattered white tan trichomes or glabrous, the lower surface tomentose, especially
a to
mm
cm
when
red-brown
young, the petiole 8-) 1-3 (-5. long, tomentose, the stipules lanceolate, ca. 3
8)
(0.
and
long, red-brown tomentose. Inflorescence terminal or subterminal in dense, spiciform racemes,
axillary,
cm
10-23
often paniculiform, long, densely red-brown tomentose; buds subglobose, slightly asymmetric, ca.
mm mm
and red-brown and
5 long wide, tomentose, the pedicel 0.5 long, the bract bracteoles triangular,
ca.
mm mm mm
hypanthium
long, 0.5 wide; shallowly cupulate, long, the inner surface glabrous
ca. 1 ca. ca. 1
mm
or with few trichomes the base of the gynophore; calyx campanulate, 5 long, inconspicuously
a at ca.
beyond
5-nerved, the nerves not extending the apex, (2)3-lobed, the lobes triangular, the inner surface
mm mm mm
5-7
2.5-4
with short, appressed trichomes; petals white, spatulate, long, wide, the claw ca. 2
red-brown apex rounded red-brown
long, strigose, the blade slightly concave, the to obtuse, usually strigose
mm mm
6-8
median on 7-10
along the nerve the outer surface,; stamens long, the filament long, glabrous,
mm
3 tectum
the anther oblong, 2 long, glabrous; pollen spheroid, -corporate, the microrugulate, often
ca.
mm
gynoecium gynophore
with 4.5-5
microperforate, spheroid, supratectal processes; long, the to ca. 0.5
mm mm
red-brown red-brown
long, sparsely tomentose, the ovary 2 long, densely tomentose, the style
ca.
mm
cm cm
2 long, sparsely red-brown tomentose. Fruit elongate-reniform, (4-)5-7 long, 1.1-1.8 wide,
ca.
and
the apex base acute rounded, the valves chartaceous, conspicuously sparsely densely
to reticulate, to
mm
red-brown or sometimes red-tomentose, particularly on the margins, l(2)-seeded, the gynophore 2-5
mm mm mm
red-brown 18-20 8-10
long, strigose; seeds elliptic-reniform, long, wide, ca. 1 thick.
and ecology.—Mexico, Guatemala, Panama, Venezuela, Peru, Paraguay,
Distribution Belize, Bolivia,
March
and Brazil In wet to moist high forest at 0-1,200 m. Flowering to September; fruiting January to
November.
Although several segregates at the species or varietal level have been proposed by previous workers,
polymorphic most
B. microstachya is treated here as a single, wide-ranging, species. It is closely related to
and Minas from by
B. flexuosa of the caatinga of Bahia Gerais, Brazil, but is distinguished that species its
cm cm cm cm
larger leaves (4-9 long vs. 1.5-3.5 long), its larger fruit ((4-)7-8(10) long vs. 2.5-3 long), and
lack of conspicuously flexuous stems.
its
71 (K, US). San Martin: Chazuta, Rio Huallaga, ca. 260 m, Apr 1935, Klug 4060 (BM,
km N
May
mouth
1522 Bahia: 28
of the Rio Solimoes, 1851, Spruce (G, K, P). ca. of
,
Nov
State Agricultural School, Vigosa, 6 1958, Irwin 2029 (NY). Parana: Rio do
ais:
Nov
Santa
Catarina:
io de Janeiro: Jurujuba, 19 1873, Glaziou 6841 (K, Pinheiral,
P).
&
Smith Klein 11715 (G, K, US). BOLIVIA. La Paz: Guanay, ca. 600 m, May 1886,
P,
,
Wunderlin and Bauhinia subgenus Phanera Schnefla 625
Eilers, sect.
Bauhinia poiteauana
Vbgel, Linnaea 13:309. 1839.
French
Type: Guiana. 1844, Poiteaus.n. (holotype: B, destroyed; lectotype,
Woody, tendriled vine climbing 25 m; young branches red-brown soon
to subterete, strigose or puberulent,
becoming
with " conspicuous stems sometimes becoming
glabrate, lenticels, the older flattened, undulate,
cm cm
perforate with Leaves with the blade broadly 8-12 3.5-6
age. entire, elliptic to lanceolate, long,
wide, 3- to 5-nerved, subcoriaceous, the apex acuminate, the base rounded to subcordate, the upper surface
mm
glabrous, the lower surface with scattered erect or appressed trichomes, the petiole 7-10 long, red-
mm
brown
red-brown
tomentellous, the stipules ovate, long, tomentellous. Inflorescence terminal or
ca. 1
cm
and
subterminal in spiciform racemes, sometimes paniculiform, ll-12(-25) red-brown
axillary, long,
mm
mm
buds and
tomentellous; subglobose, 3 long wide, red-brown tomentellous, the pedicel
ca. ca. 1
mm
and hypanthium
long, the bract bracteoles triangular-lanceolate, 0.5 long; depressed-cupulate,
ca.
ca.
mm
mm
3-4
red-brown
long, the inner surface sparsely appressed strigose apically; calyx campanulate,
1
beyond
long, inconspicuously 5-nerved, the nerves not extending the apex, 3-lobed, the lobes triangular, the
mm mm
4-6 3-4
inner surface sparsely red-brown strigose; petals white, broadly spatulate, long, wide, the
mm
claw long, sparsely red-brown strigose on the inner surface, the blade concave, the apex rounded,
ca. 1
sparsely red-brown pilose on the outer surface near the apex and on the inner surface near the base; stamens
mm mm mm
6-8 5-6
long, the filament long, glabrous, the anther oblong, 2 long, glabrous; pollen
ca.
spheroid, 3-colporate, the tectum microrugulate, often microperforate, with spheroid, supratectal processes;
mm mm mm
gynoecium 4-5
long, the gynophore to 0.5 long, densely red-brown hirsute, the ovary ca. 1
mm
cm
red-brown 2-3
long, densely hirsute, the style long, glabrous. Fruit elliptic-reniform, 2.5-3.5 long,
cm
1.5-1.7 wide, the apex obliquely apiculate with the persistent style base, the valves subcoriaceous,
mm
inconspicuously red-brown gynophore
reticulate, reddish, sparsely strigose, 1-seeded, the 2 long,
ca.
mm mm mm
red-brown tomentose
seeds suborbicular, 10 long, 9 wide,
distally; ca. ca. ca. 1 thick.
—
0-200
Distribution and French Guiana and Brazil (Amapa). In moist wet m.
ecology. to forests
at
Flowering October December; and
to fruiting in January February.
R
This species distinguished from the other entire-leaved species, maximiliani and smilacina, by
is B.
Tortue, 25 Jan 1967, Oldeman 2320 (US); Camopi River, between Roche Habiltee des Dames and Saut Chien, 5 Dec 1967, Oldeman 2547
Bauhinia
radiata Flumin. 1829 ("1825").
Veil, 170; 81.
Fl. 4: pi. i
ll.Jard.Bot. Natl. Belg.
4!
Woody, m; young becom
tendriled vine climbing 8 branches densely red-brown tomentose,
to subterete,
ing glabrate in age, with conspicuous lenticels, the older stems flattened and sometimes perforate. Leave:
cm cm
with
the blade bilobed 1/4 to 1/2 the length, suborbicular, (8.1-)9-ll long, (6.6-)8-ll wide, 7-
tc
9-nerved, subcoriaceous, the lobes divergent, the lobe apex rounded, the blade base shallowly cordate
Journal of the Botanical Research Institute of Texas 3(2)
626
on
red-brown tomentose, especially veins,
upper the lower surface short
the surface sparsely white-pilose,
cm becoming with the stipules
2-6 red-brown tomentose, glabrate age,
usually glaucous, the petiole long,
and
mm, subterminal in
red-brown tomentose. Inflorescence terminal or axillary,
2
lanceolate to ovate, ca.
mm
cm
buds
8-15 red-brown tomentose; ovate, ca. 6
sometimes paniculiform, long,
dense spiciform racemes,
mm
mm
beyond
with mucronate nerve extending 0.5 the
4 wide, red-brown tomentose, 5 tips ca.
long,
ca.
mm
mm
2 the bracteoles triangular-lanceolate,
long,
the bract lanceolate, ca.
apex, the pedicel 1.5 long,
ca.
mm
mm
red-brown tomentose near
sparsely
hypanthium 2 the inner surface
long,
cupulate,
long; ca.
ca. 1
mm
extending
nerves
4 5-nerved, the
campanulate, long, strongly
the base of the gynophore; calyx ca.
mm
red-brown
the inner surface to-
beyond conspicuously 5-lobed, the lobes triangular,
0.5-1 apex,
the
mm
mm
mm
4-5 claw glabrous,
10-11 wide, the 3 long,
broadly long, ca.
mentose; white, spatulate,
petals
stamens
margin;
red-brown trichomes along the top
apex with
emarginate, short,
blade concave, the
the
mm
mm
mm
pollen
12-13 10-11 glabrous, the anther oblong, ca. 2 long, glabrous;
long, the filament long,
with processes along the marginal ridges of
tectum microrugulate, supratectal
the
spheroid, 3-colporate,
mm
mm
red-brown appressed short-hirsute
gynoecium 10-12 the gynophore 2 long,
long, ca.
the
colpi;
mm
mm
red-brown
on the ovary 4 long, appressed, short-hirsute, the style ca. 6 long,
the
distal 1/2, ca.
cm
6-10
margin and long,
the base. Fruit subelliptic,
predominantly along the ventral
short-hirsute distal,
cm asymmetric, the apex acute with the oblique persistent style or style base, the
3.5-3.8 wide,
slightly
red-brown trichomes near
with few appressed,
conspicuously glabrous or a
valves coriaceous, reticulate,
gynophore 1.5-2 cm appressed red-brown hirsute toward the base;
long,
gynophore, l(-2)-seeded, the
the
mm
mm
8-12 and 0.5-1
long wide, thick.
seeds suborbicular,
0-700 m. Flower-
(Minas Gerais and Rio de In moist forests at
and ecology,—Brazil Janeiro).
Distribution
and May.
ing in April
and from which distinguished
easily
most trichosepala is
This species closely related to B. lilacina B. it
is
by white
petals.
its
May
Glaziou 6513 (G, K,
Larangeiros, near Cosme Velho, 20 Apr 1867, Glaziou 1144 (P); s.d. io, 6 1873,
Loejgren 1263 Rio de Janeiro,
P); Rio de Janeiro, s.d., Graham s.n. (K); s.d., Lelande s. ; s.d., (P);
Widgren
1844, (US).
1816-1821, 804 1836, Vauthier 81 (K, P); 1836, Vat s.n. (P); s.n.
Saint-Hilaire (P);
Bauhinia smilacina (Schott) Steud., Nomencl. Bot. ed. 2, 1:192. 1840. Cauhtretus smilacinus Schott, in Sprengel, Syst.
1827. Schnella smilacina (Schott) G. Don, Gen. Hist. 2:459. 1832. Type: BRAZIL. Rio de Janeiro: s.d. (fl), Schott
Veg. 4(2):406.
16.
becoming with conspicuous
soon len-
Woody, young branches subterete, strigose, glabrate,
tendriled vine; "
narrowly
with blade
and sometimes Leaves the entire,
perforate.
stems undulate,
the older flattened,
ticels,
5-8 cm cm chartaceous subcoriaceous, the
(-7) -nerved, to
2.5-3.5 long, (3-)5
long,
ovate lanceolate,
to
upper
base subtruncate rounded, the surface glabrous,
apex acuminate mucronate, rarely obtuse, the to
to
with few appressed trichomes toward the base, otherwise glabrous, slightly
rugose, the lower surface a
slightly
mm
with few appressed trichomes or
upper 7-15(20) long, a
in than the surface, the petiole
lighter color
mm
and
subterminal
terminal or axillary,
Inflorescence
obovate, long, glabrate.
glabrous, the stipules ca. 1
cm
cm
3-10 cm red-brown buds elliptic-globose, ca. 3 long, ca. 2.5
spiciform racemes, long, strigose;
in
mm
long the bract and bracteoles triangular- ovate, ca. 0.5
wide, red-brown tomentose, the pedicel ca. 1
mm
mm
red-brown
inner surface sparsely pilose;
long; hypanthium depressed-cupulate, ca. 1 long, the
mm
beyond
extending the apex,
nerves not
3-3.5 inconspicuously 5-nerved, the
calyx campanulate, long,
6-7
red-brown petals white, spatulate,
inner surface sparsely strigose;
the
3-lobed, the lobes triangular,
mm
mm
mm
stamens
apex rounded;
2-3 wide, glabrous, the claw 1-2 long, the blade concave, the
long,
mm
mm
mm
pollen
5-7 the filament 4.5-5.5 long, glabrous, the anther oblong, 1.5-2 long, glabrous;
long,
Wunderlin and Bauhinia subgenus Phanera
Eilers, sect. Schnella 627
tectum
spheroid, 3-colporate, microrugulate, often microperforate, with depressed, spheroid
supratectal
mm
mm
4-6
gynoecium
processes; long, the gynophore ca. 1 long, red-brown short-hirsute on the upper
mm
mm
part, the ovary ca. 1.5 long, red-brown short-hirsute, the style 4 long, glabrous or with few
ca. a
cm cm
red-brown
scattered, appressed, trichomes. Fruit narrowly 6.5-7 long, wide,
elliptic, ca. 1.5 slightly
curved, the apex with an
oblique, persistent style base, the valves chartaceous, inconspicuously
reticulate,
mm
red-brown
sparsely appressed, gynophore
short-hirsute, 1-seeded, the 7 red-brown
long,
ca. hirsute;
mm mm mm
15-16 9-10
seeds long, wide, 0.5-1
thick.
Distribution and ecology.—Brazil (Espirito Santo and Rio de Janeiro). In wet Fruiting in August.
forest.
This species differs from the other two entire-leaved species, poiteauana and maximiliani, by
B. B.
its
narrowly which more
chartaceous resembles which
elliptic, fruit closely that of B. microstachya, to ap-
it is
The
parently and
closely related. fruits of B. poiteauana B. maximiliani are reniform or elliptic-reniform and
subcoriaceous.
1565 Without
Janeiro, Burchell precise
s.d., (K). localit; ischnath
s.n. (P).
&
Bauhinia
trichosepela Queiroz) Wunderlin comb.
(L.P
Eilers, nov. Phanera
Basionym: trichosepala Queiroz,
l.p.
Feb HUEFS; CEPEC,
2005, D. Cardoso 281 (holotype:
isotypes: K).
Woody, young
tendriled vine; branches subterete, red-brown tomentose, glabrate in with conspicuous
age,
"
lenticels, the older stems flattened, undulate, often perforate. Leaves with the blade bilobed 1/3 1/2 the
to
cm cm
4-8
5-10
length, suborbicular, often broader than long, long, wide, 7- to 9-nerved, coriaceous, the
lobes slightly divergent, the lobe apex rounded, the blade base deeply cordate, the upper surface usually
tomentellous on midvein and
the the pulvinus, otherwise glabrous, rugose, the lower surface red-brown
cm
on
tomentellous, especially the nerves, subglaucous, the petiole 1-3.5 long, red-brown tomentose, the
mm
8 red-brown
stipules linear, ca. long, tomentellous. Inflorescence terminal or subterminal and
axillary,
cm
15-20 cm cm
in spiciform racemes, long, red-brown tomentose; buds 1-1.5
elliptic-ovate, long,
ca. 1
red-brown
wide, tomentose, 5-angled toward the base, undulate-winged toward the apex, each wing end-
mm mm
3-5
ing in a twisted, setaceous tip long, the pedicel 2-3 long, the bract and bracteoles 8-10
linear,
mm mm
mm
hypanthium 2-3
8-9
long; cupulate, long, the inner surface glabrous; calyx campanulate,
conspicuously
long, 5-nerved, irregularly splitting to half the length into 2 lobes, the lobes triangular, the
cm cm
red-brown
inner surface strigose; petals bright pink, spatulate, 2.5-3 long, 0.7-1.4 wide, the claw
mm
ca. 5 long, glabrous, the blade ovate, the apex rounded, the margin red-brown
elliptic- slightly crisped,
cm
cm
tomentellous toward the apex on the outer surface; stamens 2-2.5 long, the filament 1.5-2
long,
mm
3-4
glabrous, the anther oblong, long, glabrous; pollen spheroid, tectum
3-colporate, microrugulate,
often microperforate, with spheroid supratectal processes on the marginal gynoecium
ridges of the
colpi;
mm mm
22-25
long, the gynophore 4 long, sparsely red-brown tomentellous ovary
ca. distally, the 5
ca.
mm
red-brown
long, sparsely tomentellous toward the base and along the ventral margin, the 14
style ca.
mm
cm
cm
long, glabrous. Fruit (immature) elliptic, 8.5-9.5 long, 3-3.5 wide, glabrous, 1-seeded, the
cm
gynophore
mature
2.5 long, glabrous; seeds not
ca. seen.
—
and and
Distribution ecology. Brazil (Bahia Minais Gerais). In caatinga seasonally dry
forests
at
800-1,000 m. Flowering Feburary May;
to fruiting April to
July.
A
and one two
distinctive species of taxa of section Schnella with non-white flowers. distinguished
is
It
mm mm
from most
by
(25-30 13-15
B. lilacina, its closely related species, its larger petals long vs. long in
winged
B. liliacina), undulate sepals elongated into conspicuous setaceous and glabrous
its tips, its style.
Specimens examined. BRAZIL. Bahia: Encruzilhada, margin of the Rio Pardo, 23 May 1968, Belem 3598 (CEPEC); Apr
Ibotirama, 14
KM
km
1971, dos Santos 1592 (CEPEC); 20 on highway from Conquista to Barra do Choga, 19 Feb 1973, dos Santos 2576 (CEPEC); 27
Journal of the Botanical Research Institute of Texas 3(2)
ACKNOWLEDGMENTS
South Florida in
completed the University of
on an unpublished masters thesis at
paper based part
This in
is
MO, and
We BM, CEPEC, IAN, K, M, US, USF,
BR, G,
1991 by the junior author. thank the curators of F, P,
comments
Hansen
and Bruce (USF) his insightful
WIS loan of the specimens used in this study, F. for
for
We (MEXU) com-
thank Colin his
Rafael Torres for
which added work. also
and suggestions greatly to this
MEXU
anonymous
and an reviewer.
on
ments on manuscript and information collections at
the
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