Doryopteris majestosa (Pteridaceae), a New Species from South America

2007·4.2 MB·English

by  Jovita Cislinski Yesilyurt

American
Forn Journal <)7(4):212-219 (2007)
New
Doryopteris majestosa Species
(Pteridaceae), a
from South America
YESILYURT
JOVITA ClSLINSKl
TWO
UK
Royal Hotanic Gardens, Kow, Herbarium, Richmond, Surrey, 3AB,
j.yesilviirtOrbgkow. org.uk
—
A now
Ahstract. species of Doryopteris here described, illustrated and diagnostic characters
is its
new
discussed. Materia] of the taxon, Doryopteris majestosa, been misinterpreted as
lias
Doryopteris nobilis as has features similar to such as the lamina architecture and large
it it,
fronds, but mainly having proliferous buds the base of the lamina amongst other
differs in at
characters.
—
Key Words. Cheilanthoideae, Doryopteris, Neotropical. Pteridaceae. South America
During a revision of the genus Doryopteris Sm. (Yesilyurt, in preparation),
J.
detailed nomenklatura] studies were also carried out, taking into account
ca.
Among
names
218 published within Doryopteris. these, Doryopteris nobilis
(T.
Moore) C. Chr. well known, probably because one of the largest species
is it is
of the genus, and several synonyms have been assigned to this taxon (Tryon.
1942). However, on checking synonyms and types, was noticed that
its all
it
the names referred plants without proliferous buds the base of the lamina.
to at
The A-D)
lamina and probably
similarities of the architecture the size
(Fig.
1,
led misidentification. Moreover, Tryon (1942) stated that Doryopteris nobilis
to
\. is characterized by the usual presence of buds at the base of the blade. ,'
...
name
thereby applying the D. nobilis to what are considered here as two
new
distinct taxa. All specimens with buds therefore describe here as a
I
species, confirmed not only on morphological but also on the cytological
evidence (Yesilyurt and Gibby, unpubl. Most of the terms used
data). in this
work
follow Lellinger (2002).
—
Doryopteris majestosa C. Yesilyurt, sp. nov. TYPE. BRAZIL. Rio de
J.
J
C. Yesilyurt 564,
/.
J,
H. Labiak, 18/01/1999 (holotype SPF; isotype BM). 1-4.
P. Figs.
Moore)
Doryopteris majestosa nov. D. nobilis Chr. sed
sp. (T. C. affinis,
gemmis gemmis
ad basin laminae locatis (nee lamina carentibus), petiolo
e
indumento
lamina adaxialiter pubescenti, ad basin laminae atque
lereti, in
venis maioribus densiore (nee oinnino sparsae)
pilis differt.
Rhizome decumbent;
Plants occasionally rupicolous. scales
terrestrial,
lanceolate ovate-lanceolate, with sporadically dentate margin, light-brown.
to
and fronds dimorphic, sub-coriaceous, with proliferous buds
Sterile
fertile at
the base of the lamina, adaxial surface with glandular hairs, usually
DORYOPTERIS MAJESTOSA SOUTH AMERICA
YESILYURT:
IN
21 3
D
c
D
Frond
Fig. variation in Doryopteris. D. majestosa (A, B): A, sterile fronds; B, fertile fronds;
1.
nobilis (C, D): C, sterile fronds; fertile fronds.
I),
concentrated base of lamina and extending along the axes; abaxial surface
at
glabrescent, indument of glandular hairs, microscales (simple and furcate) on
brown
the axes; veins anastomosing. Petiole terete to slightly sub-terete, to
rarely dark brown, glabrescent, with hairs usually on the upper side of the
petiole and more concentrated towards the base of lamina; scales same as those
more
of rhizome, concentrated the base of the petiole, those above scattered,
at
cm
lanceolate to linear-lanceolate, usually caudate. Sterile fronds to 46 long;
cm
lamina to 29 long, sagittate, ovate-lanceolate to 3-5-lobate, occasionally
pentagonal, pedate, usually broadly pinnatilobed, apex acute acuminate;
to
margin serrate with ascending teeth; hydathodes present. Fertile fronds to
cm cm
80 long; lamina to 30 long, pentagonal, pedate to usually deeply 5-
lobed, with 3-5 pairs of pinnae/segments, slightly ascending; apices acute to
cm
acuminate; sterile tips conspicuous, up to 1 long, with crenate to serrate
margin; basal pinnae/segments pinnatifid deeply pinnatilobed, asymmetric,
to
AMERICAN VOLUME NUMBER
FERN JOURNAL:
214 97 4 (20G7)
mm
0.5 cm
i
cm
0.5
'(Mlyitfc
Doryopteis majestosa C. Yesilyurt [Yesilyurt 564 et SPF, holotype). A, habit; B,
Fig. 2. a/.,
J.
petiole indument: scales; C, sorus detail showing sporangia and indnsium; D, segment apex; E,
now
proliferous buds with plants; F, petiole indument: hairs; G, proliferous buds at lie base of the
I
lamina (adaxial surface). Drawings by the author.
DORYOPTERIS MAJESTOSA SOUTH AMERICA
YESILYURT: IN 215
SEM
photomicrographs of Doryopteris spores. D. majestosa (A. Yesilyurt 564 et aL); D.
Fig. 3.
542 & Prado,
nobilis (B. Yesilyurt, C.
/.).
J.
Distribution of Doiyopteris. D. majestosa: stars; D. nobilis: squares
Fig. 4.
AMERICAN FERN JOURNAL: VOLUME NUMBER
2 IB 4 (2007)
1)7
the basiscopic side being more developed and more dissected than the
acroscopic broadly surcurrent; pinnae/segments predominantly
side, distal
lanceolate, rarely lobed, broadly sursumcurrent; inter-pinnae sinus inconspic-
uous to broad, rounded; apex of the lamina long-acuminate, tapering. Sori
along a marginal vascular commissure, continuous around sinuses;
all
receptacle and indusium continuous, indusium with margin sporan-
entire;
mm
gium up to 0.4 long, with stalk almost same length as capsule; capsule
basal inconspicuous absent); annulus with ca 15-17 indurated
cell (to cells.
Spores castaneous 30-35
(whitish),
light cristate, (im.
new
The
epithet given Doryopteris species
specific: to this refers to
its
majestic appearance, due to the outstanding size and shape of the Fronds. The
specimens mentioned here Doryopteris majestosa were previously
as identi-
fied as D. nobilis. Both species have similar lamina architecture (Fig. A-D).
1,
much
Doryopteris majestosa however a larger plant and has wider range of
is a
distribution than D. nobilis (Fig. can be distinguished from D. nobilis
4). It
most easily by the presence of the proliferous buds the base of the lamina
at
New
These buds
(Fig. E, are also present in juvenile fronds. plants of
2, Ci).
both species were grown from spores collected either from herbarium
specimens from and were under same
or the original plants cultivated the
conditions about two years Chelsea Physic Gardens, London, UK. Buds
for at
the base of the lamina were always present in Doryopteris majestosa.
at
brown
Furthermore, Doryopteris majestosa has dark red-brown,
a to terete to
sub-terete petiole with denser indument (ferrugineous hairs) especially
towards the base of the lamina F-G); castaneous (whitish),
(Fig. light
2,
cristate spores (Fig. 3A) and pusbescent on both surfaces of the lamina
on main and
(Table especially the Cytological data (Yesilyurt Gibby,
axis.
1),
unpubl. data) also supports the distinction of both species; Doryopteris
and
majestosa
triploid D. nobilis diploid.
is
Doryopteris majestosa widely South
relatively distributed in east central
is
America
(Fig. occurs in northeastern (Bahia), southeastern (Minas Gerais)
4).
It
and southwards southern Grande do occurs
to Brazil (Rio Sul). also in
It
central west Brazil (Mato Grosso do Sul), Paraguay, Argentina and southeast-
ern Bolivia.
Doryopteris majestosa occurs in different ecological habitats from the
Atlantic, Parana pine (south Galery and secondary alongside
Brazil), forests,
mountains The
streams, slopes of or usually along forest borders. species has
when
usually been found growing in rather large populations compared to
genus do
other species of the Doryopteris. Therefore, not believe the
that
I
from any
species suffers strong threat.
—
BRAZIL.
Specimens examined. Bahia: Santos 4121 (US); M. Blanche!
T. S. el
al.
Espirito Santo: A. Brade 18503 Rio de
s.n. (G). C. et al. (RB). Janeiro:
&
Luetzenberg 12917 (M, M. Tryon A. Tryon 6620 (BM, GH); Bizzini
B.
S); C.
452 Brade 12709 Brade 9495 Minas Mosen
(RB); A. (RB); A. (BM). Gerais:
C. C.
T
2082 M,
(B, K, S); Santos 4121 (US); G. Lindberg 601 (B); Begnell 329 (BR,
U); E. P. Heringer 5709 (M); L. S. Leoni 745 (UG). Sao Paulo: M. Kuhlmann 804
YFSILYURT: DORYOPTERIS MAJESTOSA SOUTH AMERICA
IN
2 17
Main
Table morphological
1. features to distinguish Doryopteris majestosa from D. nobilis.
CHARACTERS
majestosa
D.
D. nobilis
buds
Proliferous at the present (Fig. IE) absent
base lamina
of the
Size of the fertile frond to 80, lamina up to 30 frond 55-60; lamina up 45
ii]) to
frond (length in cm)
Size of the sterile frond frond up to 46, lamina up 29 frond 35-40 lamina
to long; 30
cm)
(length in
shape
Petiole
terete (rarely sub-terete), predominantly
sulcate,
towards
(especially
base of the lamina)
Petiole colour brown to dark red -brown. red red-brown.
to light
indument
Petiole pubescent
(ferrugineous with hairs usually on the
hairs, Fig. IF), with upper side of the petiole
denser indument towards and more
concentrated
the base of the lamina towards
the base of
(Fig. 1G) and scales (Fig. IB) the lamina
Indument
on the adaxial pubescent, denser
the puberulous
at to glabrous,
surface of the lamina base of the lamina, extending
hairs scattered along
on the main axes (Fig. 1G) the main axes
Indument on
the abaxial glabrescent, with glandular and
glabrescent with
surface of the lamina and
hairs scattered microscales usually
microscales along the axes concentrated the base
at
of the lamina
Margin
of sterile tips of predominantly serrate (Fig. ID) predominantly dentate
lamina
the
fertile
and/or margin
of the
lamina
sterile
Size of the sterile tips usually long (up cm) medium
to short
1 to
of the lamina mm)
fertile ID)
(Fig. (up to 0.7
Spores
in light light castaneous (whitish), light castaneous (golden).
microscope
with
cristate (cristae sparsely
cristate (cristae
(color en masse)
threads) 3A)
(Fig. lamellate) 3B)
(Fig.
SEM
and
Spore 30-35
size (in \xm) 27.5-30
Sporangium,
up
si to 0.4, with stalk almost up to 0.3, with stalk ca. 2/3
mm)
same
(in length as capsule of capsule length,
Distribution (Fie. 4) in Brazil, from Bahia down only in Brazil, usually along
to Rio Grande do Sul states, coastal rainforest, from
towards Paraguay, Argentina Bahia Santa
to
.nid Bolivia Catarina
states.
Kuhlmann
M.
(SP); 1053 Duarte Hoehne
(SP); C. s.n. (SP); F. C. s.n. (SP) H.
Luederwaldt 21312
(SP); H. Luederwaldt (SPF); O. Yano 3663
s.n. (SP); F.
Tamandare &
A. C. Brade 6516 (SP); A. C. Brade 8599 (UC); Duarte 4979
(S);
M. 400 (MO, PACA, M.
R. Silva, SPF); R. Silva, 1571 (SPF); Guedes 72 (NY); M.
VOLUME NUMBER
AMERICAN FERN JOURNAL: 97 4 (2007)
218
Sehnem
Mato Grosso do A.
Albricht 130 (NY); A. B. Joly 841 (RB, SPF). Sul:
(MBM, MO, PACA);
21520
Hatschbach G.
8063 (PACA). Parana:
G.
Guimaraes
PACA, Hatschbach
Hatschbach 24144 UC, US); G. 8r O.
(C, S,
Dusen
Hatschbach 21520 (PACA, MO); P. 11621 (S); G.
19338
G.
(C);
O.
S.
Hatschba
J
&
Lindenam Hass 3357
M. 109 H. (B, U); C.
Ribas Silva (B); C. /.
8r /. J.
J.
Lindenam Hass 1219 (BM, RB,
Lindenam Hass 4969 (GH, H.
H. U); C. &•].
&>].
/.
Perreira 5322 (B); Reis 129 (GH); A. C. Cervi 2536 (NY); A. P. Duarte 6- E.
U); E.
7790
Kazera 168 (NY); Pereira
Pereira 1678 (NY, RB); U. A. Dietrich Er C. E.
Sehnem Tessman 26 Tessman 6026 (BR); B.
971 (NY); G. (RB); G.
(M); A.
/.
&
M. 436 UC); Poliquesi
Pirani 406 (SPF); Cordeiro Silva (S, C. B. 8r /.
et al. /. /.
6673
Cordeiro 304 (UC). Santa Catarina: M. Klein 7982 (PACA); Reitz Er Klein
(BM);
/
(MO
Grande do
Smith 9614 (US). Rio Sul: A.
H. Gauthier s.n. (RB); L. B. et al.
Sehnem
Sehnem 3574
PACA, 3576
Sehnem GH, A.
3330 US); A. (C);
C,
(B,
2186
{US);
Leite
J.E.
J.
J
Lindman
1019
M.
(B, S); C.
/
M
Mackh
Jneri>ens s.n. (B, L,
Bambo
Bambo 42096
41710 (RB).
(RB); B.
Ekman Herzog
26 Tablas-Thales:
BOLIVA. Herzog T.
T. 2 (US); E. L. (S).
&
2143 M. UC). La Paz: Plowman E. W. Davis 5166 (GH); M. Kessler et al.
T.
(L.
I
1000
(UC).
al.
Guarapi:
Joergensen 4061 (GH). B.
BM
(MO)
(MO); M. Ortiz 492 Caazapa: M. Ortiz 945 (MO); B. Degen 1295
(G).
Penna-Chocarro 268 (BM)
M.
BM
4372
Maracayi: Hassler
E.
(
BM Woolston 707 (BM, NY, SP, U,
Alto Paraguay: A. S,
L.
.
&
Molero
GH, Casas
UC). Alto Parana: K. Fiebrig 5796 (B, US). Itapua: F.
/.
J.
3738B (MO, NY); forgensen 4062 (MO, NY, UC); Bassualdo 002123 (MO);
P. I.
7640 Gran Chaco: C A. M. Lindman 2077 (GH, NY); T. M.
M. Foster (UC).
S.
3390
Pedersem 5973 (GH); F. Billiet 8r B. Jardin (BR).
Tucuman:
ARGENTINA. G. Niedulein s.n. (B); E. Hassler 782 (G). /. E.
Vemturi 9645 (GH, US);
Montes 2446 (MO) F.
2918 Vemturi 1231
Vervoorst A. Cuezzo 7806c (GH); Lillo (GH); S. (U).
B.
Sr
Mortes 1673 (BM, Mortes 10756 (MO); E. Mortes
Missiones: C); E.
E.
/.
/.
/.
MO)
Huidabro 5540 (BM,
Meyer 5498
(GH);
/
(BM,RB);/
Schuh
(MO); A.
G.
Novara 9999 (M)
/.
(GH, US).
YESILYURT: DORYOPTERIS MAJESTOSA SOUTH AMERICA
IN
219
Acknowledgements
am
indebted
I to all the curators, especially of several herbaria cited in this text, for making
am
who
available the material studied. also grateful to Dr. R. Harley kindly corrected early
I
versions of the manuscript and made valuable suggestions; to Dr. R. Brummitt who dedicated his
me
expertise to discuss with several nomenclatural problems within the genus; Mrs. Melanie
to
Thomas
for the Latin corrections and suggestions, and also to an anonymous reviewer. This paper
Museum
constitutes a portion of a Ph.D. project developed the Natural History (UK)
at in
conjunction with the University of Reading (UK) and partly also the Royal Botanic Gardens, Kew
at
(UK).
Literature
Cited
Modern
Lellinger, D. B. 2002. Multilingual Glossary for Taxonomic Pteridology. N. Am. Fern
3.
Soc,
Inc.
A
Tryon, R. M. 1942. revision of the genus Doryopteris. Contrib. Gray Herb 143:1-80.