464 CONTRIBUTIONS FROM THE NATIONAL, HERBARIUM. 



Dalea thymoides Schleclit. Linnaea 5: 580. 1830. 



Dalea verrucosa Don, Hist. Dichl. PI. 2: 225. 1832. . 



? Dalea comosa Schleclit. Linnaea 12: 289. 1838. 



Chihuahua and Coahuila to Mexico and Puebla. 



Shrub. 50 cm. high or more, the branches densely short-pubescent; leaflets 

 5 to 11, oblong or obovate, 4 to 8 mm. long, short-pubescent, sometimes 

 glabrate above; spikes 2 to 15 cm. long; calyx short-pubescent; banner yel- 

 lowish, the other petals purple; fruit pubescent. " Engorda-cabras " (Du- 

 rango, Patond). 



100. Parosela canescens (Mart. & Gal.) Rose, Contr. U. S. Nat. Herb. 10: 105. 

 1906. 



Dalea canetscens Mart. & Gal. Bull. Acad. Brux. 10': 43. 1843. 



Hidalgo, Puebla, and Oaxaca ; type from Tehuacan, Puebla. 



Shrub, 1 to 2 meters high, with finely canescent branches; leaflets 8 to 7, 

 obovate, 4 to 10 mm. long, canescent. sometimes glabrate on the upper surface ; 

 spikes 2 to 10 cm. long; calyx short-pubescent; banner ochroleucous, the other 

 petals purple; fruit pubescent. 



101. Parosela conzattii Rydb. N. Amer. Fl. 24: 89. 1920. 

 Known only from the type locality, Cerro San Antonio, Oaxaca. 



Low shrub with puberulent branches; leaflets 17 to 31, linear-oblong, 4 to 5 

 mm. long, glabrous above, puberulent beneath ; spikes 2 cm. long ; calyx pubes- 

 cent ; petals rose-purple. 



102. Parosela tuberculina Rydb. N. Amer. Fl. 24: 89. 1920. 

 Known only from the type locality, San Luis Tultitlanapa, Puebla. 



Low shrub with puberulent branches; leaflets 7 to 11, obovate, 4 to 5 mm. 

 hmg, retuse, glabrous above, puberulent beneath; spikes dense, 1.5 to 3 cm. 

 long ; calyx short-pilose ; banner yellowish, the other petals rose-purple ; fruit 

 densely pubescent. 



103. Parosela fulvosericea Rydb. N. Amer. Fl. 24: 89. 1920. 

 Vicinity of San Luis Potosf. 



Shrub, 50 cm. high, with villous branches ; leaflets 7 or 9, obovate, 4 to 10 mm. 

 long, retuse, sericeous; spikes dense, 2 to 3 cm. long; calyx sericeous; banner 

 yellowish, the otlier petals rose-purple ; fruit densely pubescent. 



104. Parosela dorycnoides (DC.) Rydb. N. Amer. Fl. 24: 90. 1920. 

 Jtolca dorycnoides DC. Prodr. 2: 245. 1825. 



Dalea pulchella Moric. M6m. Soc. Geneve 7: 249. pi. 7. 1836. Not D. pulchella 



Don, 1832. 

 ? Dalea argentea Mart. Del. Seni. Hort. Monac. 1846. Not. D. argentea Don, 



1832. 

 Parosela pvlchclhi Heller, Cat. N. Amer. PI. ed. 2. 0. 1900. 

 San Luis PotosI and Hidalgo. 



Shrub. .W cm. high or more, with tomentose branches; leaflets 5 or 7, obovate, 

 3 to 8 mm. long, retuse, silky-canescent; spikes headike, 1 to 2 cm. long; calyx 

 villous; banner ochroleucous, the other petals purple; fruit pubescent. 



105. Parosela polycephala (Benth.) Rydb. N. Amer. Fl. 24: 90. 1920. 



Dalea polycephnia Benth.: ireiiisl. Biol. Centr. Amer. Bot. 1: 244, hyponym. 

 1880. 



San Luis Potosi. 



Low shrub with puberulent branches ; leaflets 5 to 9, obovate, 2 mm. long or 

 less, puberulent; spikes subglobose ; calyx villous; banner yellowish, the other 

 petals r(jse-purple ; fruit pubescent. 



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