Table Of ContentMadrono, Vol. 54, No. 2, pp. 175 179, 2007
DALEA ANALILIANA (FABACEAE: AMORPHEAE), A NEW SPECIES FROM THE
NORTHWESTERN SIERRA MADRE OCCIDENTAL, MEXICO
Richard Spellenberg
Biology Department, MSC 3AF, New Mexico State University,
NM
Las Cruces, 88003-88001
[email protected]
Abstract
Dalea analiliana is described as new from the vicinity ofYecora in the Sierra Madre Occidental of
eastern Sonora, Mexico. Thisperennial is related to D. ne/soniiGreene, butdiffersin itswhite flowers,
the presence of glands on both surfaces of the leaflets, and its more northern distribution. Dalea
analilianaoccursin opengrasslandsand alongroadsidesinoakandoak-pineforesthabitatssimilarto
those described for D. nelsonii.
Resumen
Se describe la especie nueva Dalea analiliana de los alrededores de Yecora en la Sierra Madre
Occidental al orientede Sonora, Mexico. Estaplantaperenneesta relacionadacon D. nelsonii, pero se
diferencia por sus flores blancas y la presencia de glandulas en ambas superficies de las hojuelas y su
rangogeograficomasalnorte. Daleaanalilianaoccureenpastizalyaorillasdelacarreteraconzacates
en bosques de encino y pino-encino, habitates similares a los descritos para D. nelsoni.
Key Words: Dalea, Sierra Madre Occidental, North American floristics, new species.
Access to the northern Sierra Madre Occiden- 1977). This is the tenth known species in the
tal has progressively improved as Mexico has section as it was treated by Barneby. The specific
developed good roads in the region during the epithet honors Ana Lilia Reina-Guerrero who, as
past two decades. This is particularly so with the far as is known, first collected the species with her
completion of Mexico Highway 16 between the husband, Tom Van Devender, in mid-September,
cities of Chihuahua and Hermosillo in the states 1999. Ms. Reina has studied medicinal plants of
of Chihuahua and Sonora respectively, finally the Mountain Pima Indians in the Municipio de
providing easy access to Yecora approximately Yecora, and is a keen student of the flora of
three centuries after the founding of the village. eastern Sonora and the Arizona-Sonora border
The vegetation has been described along the region.
eqlueevzateitonaal.l t19r9a2n)s.ecMtomraederecbeynttlhyi,ssheivegrhawlayflo(rBisutri-c DalMeexaicaon,alSiolinaonraa,SMpuelnliecnibp.i,o sdpe. Yneocvo.ra,TYcePmEe:-
projects have been completed in this general
tery in Yecora, 28^22'30"N, 108 56'W, very
rdRDeieegsivicneooannv-deGer(.yrEsettoertfaald.aanl-1e.9Ca9.r29l0;ye0t3S,p3ae0l.l2l0ne10ne95b9)w7e,;rgtraLeexatsafu.eallrt.riTin1ehg9re9e6i;na1rV9e9ta4ahn;se cTfVlYoaoPnmwEemDr:oesvnweMhnEihdteXeerr;Ub;a91c97-eI6oS9Sue4spO,T1ApY9.eP9rE9Le.nS(n:RmiieadilA-nNfail-SnoGwM.eg,rr()a,HsAsORlTL.aInOZRd-,.;
around Basaseachic and Yecora have been CIIDIR, MEXU, NMC, NY, UC, USON).
particularly rich in novelties. These restricted
and more or less complete floras built upon the (Figs. 1, 2).
foundations laid by the early efforts of several Dalea analiliana Spellenberg, sp. nov.
botanical explorers ofthe general region (Gentry PlantaecharacteressectionisThornbera(Rydb.)
1942 [revisited by Martin et al. 1998]; LeSueur Barneby praebentes (Barneby 1977, p. 168), ab
1945; White 1948). Identification of species of species ceteris sectionis differt combinatione se-
Dalea in the region was facilitated by the detailed quentie characterium. Plantae glabrae usque ad
revision ofthat genus and allied genera by Rupert spicas. Caules subteretes leniter vel moderate
Barneby (1977). verruculosi glandibus elevatis. Foliola paribus 8
The new Dalea described herein is readily 13, glandulopunctatae in superficiebus ambabus,
assignable to the section Thornbera (Rydb.) foliolum terminale par sum pari postremo in-
Barneby by its perennial, herbaceous habit, the sertum (trifolium formans). Tubus calycis penitus
10-merous androecium with epistemonous petals recessus post vexillum, tubus (metiens ad sinum
mm
perched half-way between the hypanthium and dorsalem) 2.5 longus, glaber exter, interne
anthers, and the deeply separated filaments in dentes sericeo-pilosi, orificium itaque aspectu
a tassle about as long as the sheath (Barneby dense ciliatum, intervallis inter costas glandibus
I
MADRONO 1
176 [Vol. 54
!
Fig. 1. Photo ofholotype specimenofDaleaanaliliaua tobedeposited at MEXU, showinghabit, perennial root,
and multiple stems.
parvulis aurantiacis pustuliformibus in ±2 serie- slightly ridged, lightly to moderately verruculose
mm
bus iriegularibus; denies calycis inequales, dentes with round orangish glands 0.1 0.2 diam.
mm
dorsalesangustetriangulares0.7 longi, dentes densest near the nodes and on the peduncles;
mm mm
laterales late triangulares 0.5 longi. Petala stipules narrowly linear-caudate, 1.5-3.5
mm
omnino alba, vexillum 6.6 longum, ala long, yellowish, reddish or brownish; leaves
4.2 mm longa, carina alis ± aequans. Fructus green, imparipinnate, 3-30 mm long, subsessile
glabri, glandibuspaucisminutisdistaliterinstruct!. or petiolate to ca. 1 mm, the rachis unwinged or
Plants perennial, herbaceous or weakly suffru- with very narrow, inconspicuous green margins,
tescent, with multiple stems arising from the intrapetiolular glands usually fused to form
sctreomwsnaoscfeandiwnogo,d2y5r5oo0t,cmgllaobnrgo,usbrtaoncthheedsipniktehs;e s1phmeirniuct,eorgalnagned,, ±p0o.st1-pmetmiolduilaamr.;gllaeanfdlsets2,(5h-e)mi8--
distal half, usually yellowish green, sometimes 13 pairs,mnmarrowlyelliptic orelliptic-oblanceolate,
blushed with brownish-purple, round or very 1.8-5.5 long, flat or loosely folded, more or
2007] SPELLENBERG: DALEA ANALILIANA 111
E
E
H
Fig. 2. Flower and leaf of Dalea aualiliana. A. Floral bracts, range of variation; B. Flower, lateral view; C.
Banner, ventral view. D. Wing petal; E. Keel petal; F. Staminal tassle, most anthers having dropped, showing
epitsemonous petal-attachment scars midway on tassle; G. Fruit, lateral view, the withered style still attached;
H. Leaf.
less keeled dorsally by the midrib, bluntly acute, the last pair and forming a trefoil; peduncles
rounded, or minutely emarginated, prominently tenninal to the main axis and all branches, 1.5-
punctuate on both surfaces with round, dark 8 cm long; spikes dense, narrowly conic in bud
olive-green or blackish-purple glands ±0.05 mm and flower, ± cylindric in fruit, without petals 8-
diam., the terminal leaflet inserted at the level of 9 mm diam., the puberulent axis (1) 1.5-7 cm
MADRONO
178 [Vol. 54
long; bracts linear-lanceolate to narrowly lance- sional, flowers white; 7 Sep 1996 (early flower),
caudate, 3--4.5 mm, sparsely glandular, purplish- A. L. Reina-G. 96-477et al. (ARIZ, MEXU, NY,
black on the caudate apical portion, the bracts in TEX); La Otra Banda (Pima Indian portion of
basal the portion of spike ± persistent, those Yecora, open pine-oak forest on locally bar
distallydeciduous at time ofanthesis, basal bracts volcanic ash hilltops, 28°21'45"N, 108°55'W,
glabrous or glabrate on dorsal surface, minutely 1560 m elev., uncommon herbaceous perennial,
puberulent on ventral surface, the more distal 19 Nov 1997 (fruit), A. L. Reina-G. 97-1524 et al.
bracts smaller and often ± puberulent dorsally; (NY, WS); cemetery in Yecora, 28°22'30"N,
calyx 3.0-3.8 mm long (to the longest tooth), 108°56'W, 1540 m elev., common herbaceous
broadly ovoid, glabrous externally, the teeth perennial in grassy field, flowers white, 17 Sep
silky-pilose within and the orifice therefore 1998 (early flower), A. L. Reina-G. 98-1206, T. R.
densely ciliate, the tube (as measured to a dorsal Van Devender (NMC, WS); 12.4 km E ofYecora
mm MEX
sinus) 2.2-2.5 long, as measured to the on 16, pine-oak forest on steep cliff base;
m
deeply recessed ventral sinus behind the banner 28"22'50"N, 108°50'41"W, 1600 elev., solitary
mm
±1 long, purplish-black along the subfili- herbaceous perennial on disturbed roadside,
form ribs and on the teeth, the plane intervals flowers white, 13 Sep 1999 (early flower), A. L.
between the ribs charged with 1-3 irregular rows Reina-G. 99-536, T. R. Van Devender (NMC,
mm
oforange oval blisterglands ±0.1 wide; teeth RSA);m Yecora, 28°22'25"N, 108°55'30"W,
triangular or triangular-acuminate, slightly un- 1540 elev., abundant herbaceous perennial on
equal, the dorsal tooth the narrowest and longest, roadside, flowers white, 13 Sep 1999 (late-flower),
mm
0.9-1.1 long, the lateral pair slightly shorter A. L. Reina-G. 99-547, T. R. Van Devender
and proportionately broader; petals white (yellow (ARIZ, CIIDIR, MEXU, MO, NMC, US,
according to one specimen label), eglandular, the USON); 4.8 km E of Maycoba on MEX 16,
epistemonous (attached to the androecium) ones grassy valley in oak woodland, 28°24'01"N,
attached just below, or the inner pair slightly 108 37'17"W, 1600 m elev., locally common on
above, the separation of the filaments, ca. half- disturbed grassy roadside, flowers white, 15 Sep
way between hypanthium and anthers; banner 1999 (late flower), T. R. Van Devender 99-604, A.
b6.r0o^a6d.l6ymovmate,lorngo,undtehed ocrlavwery2.s2h-a2l.l6owmlmy,ematrh-e 4L..5Rkeimna-WG. (oAfRIMZa,yMcoEbXaU,onNMMCE,XSD,16T,EXo,a)k;
mm
ginate, slightly reflexed blade 3.8-4 long, woodland/grassland; 28°24'14"N, 108'4r36"W,
3.2-3.3 mm wide; epistemenous petals similar, the 1500 m elev., uncommon herbaceous [perennial]
inner pair sometimes a little larger, the blades on disturbed roadside; flowers white, 15 Sep 1999
mm
elliptic oblong to oblong, 3.5-3.7 long, 1.1- (mid-flower), T. R. Van Devender 99-609, A. L.
1.6 mm wide, obliquely contracted at base into Reina-G. (ANSM, ARIZ, ASU, IBUG, NMC);
a claw 0.6-1 mm long; androecium 10-merous, 6.5 km W ofYecora on MEX 16 (km 273), pine-
mm m
5.8-6.8 long, the filament free for 3.5- oak forest, 28"21'48"N, 108°58'55"W, 1740
4.2 mm, the connective tipped with an orange- elev., solitary herbaceous perennial on roadside;
yellow gland, the pale yellow or whitish anthers flowers yellow, 17 Sep 1999 (late flower), T. R.
mm mm
0.4-0.8 long; pod 2.3-2.5 long, obliquely Van Devender 99-698, A. L. Reina-G. (ARIZ,
obovoid to obliquely trapezoidal in profile, the BRIT, NMC,); Yecora, near cemetery,
m
short style base terminal near the ventral edge, 22°22'25"N, 108°56'W, 1540 elev., locally
the dorsal edge and prow with a low keel, the common herbaceous perennial in grassy field;
valves hyaline except at the thinly herbaceous, flowerswhite, 2 Oct 2000 (mid-fruit), A. L. Reina.
sparsely gland—-dotted tip. G. 2000-858, T. R. Van Devender (ASC, ENCB,
Phenology. Flowering i—n September. F, K, NMC).
Distribution and habitat. As far as is known, The correct identification and classification of
Dalea analiliana is restricted to the Municipio de Dalea analiliana has been in question from the
Yecora in Sonora, northwestern Mexico, with all time of the first collections. Rupert Barneby, in
collections from near MEX Highway 16 from a communication to Dr. Van Devender, sug-
W
6.5 km ofYecora to 4.8 km E of Maycoba (a gested that it might be near D. urceolata Greene,
linear W-E distance ofca. 37 km, approximately a polymorphic annual in the section Dalea,
bounded by 28 21-24', 108 37 58'), where it noting at that time that it was probably
occurs in open grassy fields on consolidated undescribed. Using Barneby's detailed keys
mudflows and along roadsides in areas of oak (1977), I identified collections to be near D.
m
and pine forest, 1500-1740 elevation. Henrick- urceolata (based on the deep notch on the calyx,
son (1999) reviews the history ofthe mudflows in behind the banner) in 2000, or near D. ananassa
the area and generally describes the vegetation on Barneby, in the section Thornbera in 1999 (based
these flows and the surrounding area. on perennation, proportions of the androecium,
Paratypes (all Sonora, Mcpio.Wde Yecora): Ca. and glabrous foliage), all the time attempting to
2.5 km S of Yecora, grasslands of Arroyo El avoid the decision that this was, indeed, an
m
Toro, 28 20'54"N 108 56'W, 1540 dev., occa- undescribed taxon. Ultimately that position
2007] SPELLENBERG: DALEA ANALILIANA 179
could not be supported. The placement of the Henrickson, J. 1999. A new species of Portulaca
species is clearly in the section Thornhera. Within (Portulacaceae). Sida 18:1001-1007.
that section, D. cmaliliana s easily to near D. Laferriere, J. E. 1994. Vegetation and flora of the
nelsonii(Kydb.) Barneby(in Barneby 1977),where Mountain Pima village ofNabogame, Chihuahua,
Mexico. Phytologia 77:102-140.
one stalls on flower color (blue for D. nelsonii vs.
LeSueur, H. 1945. The ecology of the vegetation of
white for D. cmaliliana), range (southern Chihua-
Chihuahua. Mexico, north ofparallel twenty-eight.
hua and adjacent Durango vs. eastern Sonora), University ofTexas Publication #4521.
the distribution ofglands on the leaflets (abaxial Martin, P. S., D. Yetman, M. Fishbein, P. Jenkins,
versus both surfaces), and among other mensural T. R. Van Devender, and R. K. Wilson. 1998.
details in the descriptions. The deeply cleft calyx Gentry's Rio Mayo Plants. The tropical deciduous
alignsD. analilianawith thepreviouslymonotypic forest & environs ofnorthwest Mexico. University
series NelsonianaeBarneby(which contained only ofArizona Press, Tucson, AZ.
D. nelsonii), adding a second, geographically Reina-G., a. L., T. R. Van Devender, W. Trauba,
adjacent species to the series. AND A. BuRQUEZ-M. 1999. Caminos de Yecora.
Notes on the vegetation and flora of Yecora,
Acknowledgments Sonora, Pp. 137-144 in B. D. Vasquez del Castillo,
M. Ortega N., and C. A. Yocupicio-C. (eds.),
I thank Guy Nesom for providing the Latin de- Memorias, Symposium Internacional Sobre la
tscrrainpstliaotni.onAnofatLhieliSapaRneiisnha-aGbusetrrarcetr,oafnodr shheelpawnidthTothme tUrnetidlezaZcoinoansyAArpirdaosv.ecDheapmti.enIntvoesdteiglaaciFolnoersaCSiielnvteis--
Van Devender for providing specimens for study. Tom ficas y Tecnologicas, Universidad de Sonora,
Zanoni discovered and kindly made available a draft Hermosillo, Sonora.
English description for this taxon, prepared by Rupert Spellenberg, R., T. Lebgue, and R. Corral-Diaz.
Barneby, which was filed among Dalea urceolata 1996. A specimen-based, annotated checklist of
specimens. My wife, Naida Zucker, was most helpful the vascular plants of Parque Nacional "Cascada
in electronic manipulation ofimages and text. de Basaseachi" and adjacent areas. Chihuahua,
Mexico. Listados Floristicos de Mexico, XIII.
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