Dalea pogonathera A.Gray var. pogonathera

Authors

Rupert C. Barneby

Authority

Barneby, Rupert C. 1977. Daleae Imagines, an illustrated revision of Errazurizia Philippi, Psorothamnus Rydberg, Marine Liebmann, and Dalea Lucanus emen. Barneby, including all species of Leguminosae tribe Amorpheae Borissova ever referred to Dalea. Mem. New York Bot. Gard. 27: 1-892.

Family

Fabaceae

Scientific Name

Dalea pogonathera A.Gray var. pogonathera

Type

‘About Monterey, Mexico, Dr. Edwards and Major Eaton. — Holotypus, Edwards & Eaton 18, GH! isotypus, NY!— Parosela pogonathera (Gray) Vail, Trans. N. Y. Acad. Sci. 14: 34. 1894; A. Heller, Contrib. Herb. Franklin & Marshall Coll. 1: 49. 1895 (as comb. nov

Synonyms

Parosela pogonathera (A.Gray) Vail

Description

Species Description - Relatively robust and large-flowered; stems 1-3.5 dm long; leaves 1-2 (2.5) cm long; spikes 13-18 (20) mm diam, the axis (1) 1.5-8 cm long; bracts 4-6 mm long, (3) 3.6-4.8 mm wide; keel (5.5) 5.8-6.8 mm long, the claws 1.1-1.8 (2.4) mm, the blades 4.3-5.8 mm long, 2.3-3.1 mm wide; 2n = 7 II; 14 (Mosquin); n = 7 (Spellenberg, 1973).— Collections: 110 (vii).

Distribution and Ecology - Low hills and plains, mostly in the Larrea and Prosopis belts, strongly but not exclusively calciphile, widespread and common between 630 and 1800 (1890) m (2100-6300 ft) over the Chihuahuan Desert, from s. New Mexico (Grant, Luna, Dona Ana, Eddy cos) and trans-Pecos Texas through the e. half of Chihuahua and the whole of Coahuila into n. Zacatecas, just into w.-centr. Nuevo Leon, the Nazas basin in Durango, and possibly n. San Luis Potosi, in Durango passing the Divide to the head of Rio Mezquital (mpo Nombre de Dios), in Texas extending e. of the Pecos to the n.-w. margins of Edwards Plateau (to Howard and Runnels cos) and downstream along Rio Grande to apparently disjunct stations, below 200 m, in Webb and Starr counties, there intergrading with var. walkerae; also from New Mexico w., still locally abundant, around the s. end of the Mogollon Mountains into the Gila Basin in s.-e. Arizona (to Graham, s.-e. Pinal, Pima, and Santa Cruz cos) and the n.-e. corner of Sonora (mpo Fronteras). — Flowering April to November, responding readily to rain.

Discussion

(Plate CXXXIII)

A modest but attractive plant, very common over the desert hills and plains of interior northern Mexico and adjoining United States westward from the Big Bend country, locally abundant especially on hard-packed, fine-grained soils derived from limestones. Except where sympatric with D. lasiathera, it is easily recognized by the syndrome of few (usually 2-3) pairs of narrow glaucous leaflets prominently dotted beneath, rather loose spikes of violet flowers, and particularly by the persistent, pale-margined, dorsally glabrous but verruculose bracts of broad outline that clasp and enfold the long-toothed, silvery-plumose calyces. As mentioned above, var. pogonathera passes eastward insensibly into var. walkerae, but has been collected in typical form on low limestone hills near the lower Rio Grande in Webb and Starr counties, Texas, a dispersal-pattern repeated by D. nana var. carnescens, with which it is commonly associated over a great part of its range.

Objects

Representative: UNITED STATES. Arizona: Waterfall 12,899 (OKLA); Thornber 205 (NY, UC); Maguire 10,765 (NY), 10,990 (NY, UC). New Mexico: Metcalfe 1295 (NY, UC, US); Wooton 415 (NY, UC); Barneby 2481, 4201 (NY). Texas: Wright 132 in 1849 (NY, OXF); T. & L. Mosquin 5694 (NY); Hinckley 1362 (NY); McCart 7392, 7860 (OKLA). MEXICO. Sonora: Wiggins 11,766 (DS). Chihuahua: Pringle 997 (F, NY, UC); Mosquin et al 6570 (NY); Waterfall 16,120 (NY, OKLA); Ripley & Barneby 13,857 (CAS, NY), 13,907 (NY). Coahuila: Palmer 146 in 1898 (F, NY, UC); Wynd & Mueller 102 (ARIZ, NY); Purpus 1065 (NY, UC); I. Johnston 8230, 9413 (GH). Nuevo Leon: Ripley & Barneby 13,259 (NY). Durango: Correll & Johnston 19,985 (RENNER); Mosquin et al 6870, 6901 (NY); Ripley & Barneby 13,476. Zacatecas: Kirkwood 151 (F, GH). San Luis Potosi: Parry & Palmer 163 (NY), this without precise station.

Specimen - 01305269, E. Palmer 146, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Coahuila

Specimen - 01268735, L. C. Hinckley 1362, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, Texas, Presidio Co.

Specimen - 01268736, L. C. Hinckley 1362, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, Texas, Presidio Co.

Specimen - 01268742, J. J. Thornber 205, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, Arizona

Specimen - 01268743, E. O. Wooton 415, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, New Mexico, Doña Ana Co.

Specimen - 01268744, E. O. Wooton 415, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, New Mexico, Doña Ana Co.

Specimen - 01268747, B. Maguire 10765, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, Arizona

Specimen - 01268774, O. B. Metcalfe 1295, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, New Mexico, Sierra Co.

Specimen - 01268712, U. T. Waterfall 16120, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Chihuahua

Specimen - 01268734, C. Wright 132, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America

Specimen - 01268746, B. Maguire 10990, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, Arizona, Graham Co.

Specimen - 01305256, C. A. Purpus 1065, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Coahuila

Specimen - 01305267, F. L. Wynd 102, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Coahuila, Castaños Mun.

Specimen - 01305274, T. Mosquin 6870, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Durango

Specimen - 01305275, T. Mosquin 6901, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Durango

Specimen - 01305276, T. Mosquin 6570, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Chihuahua

Specimen - 01305272, C. G. Pringle 997, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Chihuahua

Specimen - 01305273, C. G. Pringle 997, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Chihuahua

Specimen - 01305268, C. C. Parry 163, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, San Luis Potosí

Specimen - 01305260, H. D. D. Ripley 13907, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Chihuahua

Specimen - 01305257, H. D. D. Ripley 13857, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Chihuahua

Specimen - 01268758, R. C. Barneby 2481, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, New Mexico, Luna Co.

Specimen - 01305259, H. D. D. Ripley 13259, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Nuevo León

Specimen - 01305258, H. D. D. Ripley 13476, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Zacatecas

Specimen - 01268788, T. Mosquin 5694, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, United States of America, Texas, Runnels Co.

Specimen - 01305298, D. S. Correll 19985, Dalea pogonathera A.Gray var. pogonathera, Fabaceae (152.0), Magnoliophyta; North America, Mexico, Durango

Distribution

New Mexico United States of America North America| Texas United States of America North America| Chihuahua Mexico North America| Coahuila Mexico North America| Zacatecas Mexico North America| Nuevo León Mexico North America| Durango Mexico North America| San Luis Potosí Mexico North America| Arizona United States of America North America| Sonora Mexico North America| Chihuahua Mexico North America| Coahuila Mexico North America|