WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 351 
Bracts caducous; leaflets filiform; pe- 
duncles very slender; corolla pur- 
ple...........0.. 20-2 10. P. filiformis. 
Bracts persistent; leaflets oblong, pe- 
duncles short and stout; corolla 
yellow or white. 
Corolla yellow; spikes globose..... 9. P. brachystachys. 
Corolla white; spikes cylindric.... 8. P. polygonoides. 
Plants more or less pubescent throughout; perennials. 
Spikes lax; plants prostrate, densely pubescent; 
flowers purple. 
Calyx tube villous, the lobes lanceolate........ 15. 
Calyx tube glabrous, the lobes short-triangular.16. 
Spikes densely flowered, mostly erect; plants at 
least ascending; pubescence various; flowers 
variously colored. 
Flowers white, in strict terminal spikes; plants 
finely appressed-pubescent throughout. 
Leaflets very small, about 3 mm. long, 15 
to 20 pairs...........--...----...-- 12. P. ordiae. 
Leaflets larger, 5 to 7 mm. long, 10 to 12 
|S 13. P. albiflora. 
Flowers blue, yellow, or purple; pubescence 
various. 
Spikes comparatively few-flowered, glo- 
bose; flowers blue; calyx lobes short; 
plants canescent...........-..----- 14. P. scoparia. 
Spikes at least oblong, usually considerably 
elongated, 1 cm. thick or more; flow- 
ers yellow or purple; calyx lobes seta- 
ceous; plants sericeous or villous. 
Leaves glandular-punctate; spikes very 
thick and much elongated. 
Stems sericeous, not glandular....18. P. aurea. 
Stems tuberculate, black-glandu- 
lar, minutely pubescent....19. P. lachnostachys. 
Leaves not glandular-punctate; spikes 
smaller. 
Leaves palmately trifoliolate...... 20. P. jamesiv. 
Leaves pinnate. 
Spikes sessile; leaflets acute...21. P. wrightit. 
Spikes short, pedunculate; 
leaflets obtuse. ........ 22. P. nana, 
1. Parosela calycosa (A. Gray) Heller, Cat. N. Amer. Pl. ed. 2. 5. 1900. 
Dalea calycosa A. Gray, Pl. Wright. 2: 40. 1853. 
TypE Loca.iry: ‘‘Hills near the Deserted Rancho, on the San Pedro, Sonora.” 
Ranae: Southwestern New Mexico, southern Arizona, and adjacent Mexico. 
New Mexico: Cactus Flat; Mangas Springs. Dry hillsides, in the Upper Sonoran 
Zone. 
2. Parosela frutescens (A. Gray) Vail, Contr. U. 8. Nat. Herb. 8: 303. 1905. 
Dalea frutescens A. Gray, Bost. Journ. Nat. Hist. 6: 175. 1850. 
Tyre Locauity: ‘Rocky hills and high plains, along the margins of thickets, on 
the Guadelupe, Sabinas, and Pedernales,’”’ Texas. 
. lanata. 
. terminalis. 
hs 
