318 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



1. Fallugia paradoxa (Don) Endl. Gen. PI. ll^Ki. L840. 



Sieversia paradoxa Don, Trans. Linn. Soc. Bot. 14: 57<i. 1825. 



Fallugia j>aradoxa acuminata Wooton, Bull. Torrey Club 25: 306. 1898. 



Fallugia micrantha Cockerell, Ent. News 1901: 41. 1901. 



Fallugia acuminata Cockerell, Proc. Acad. Phila. 1903: 590. 1903. 



Type locality: Mexico. 



Range: Colorado and Utah i<> Arizona, Texas, and Mexico. 



New Mexico: Espanola; Las Vegas; Albuquerque; Santa Fe; Pajarito Park; Magda- 

 lena Mountains; Mogollon Mountains; Black Range; mountains west of San Antonio; 

 Big Hatchet Mountains; Animas and San Luis mountains; Las Cruces; Orgau Moun- 

 tains; White Mountains; Guadalupe Mountains. Chiefly in the Upper Sonoran Zone. 



A common shrub in the drier mountains and arroyos, especially in the southern 

 part of the State, where it is a valuable forage plant much browsed by cattle, sheep, 

 and goats. It is well worth cultivation for decorative purposes since it grows rapidly 

 and produces an abundance of white flowers as large as apple blossoms, while the 

 clusters of plumose fruits, first greenish and later reddish tinged, which remain on 

 the plant for some time, are almost as beautiful as the flowers. 



The type of F. paradoxa acuminata was collected on the mesa near Las Cruces and 

 that of F. micrantha is from the same locality. 



The native name is "ponil." 



15. COWANIA Don. 



Spreading shrub, 1 to 2 meters high, with small pinnate cuneate-obovate glandular 

 crowded leaves and solitary flowers; leaves 10 to 15 mm. long, glabrate above, tomen- 

 tose beneath, the oblong segments with revolute margins; hypanthium turbinate, 

 tomentose and glandular-pubescent; sepals 5, broadly ovate, densely tomentose, 

 glandular on the back; petals broadly obovate, pale yellow; achenes about 5, densely 

 villous, plumose-tailed, the tail sometimes 3 to 5 cm. long. 



1. Cowania stansburiana Torr. in Stansb. Expl. Great Salt Lake 386. pi. 3. 1853. 



Type locality: Stansb urys Island, Salt Lake, Utah. 



Range: Utah and Colorado to New Mexico. 



New Mexico: Carrizo Mountains; Coolidge; Thoreau; Bear Mountain; Animas 

 Creek; Aragon. Dry hills, in the Upper Sonoran Zone. 



16. PURSHIA DC. 



A low, intricately branched shrub with small fascicled tomentose cuneate crenate 

 leaves and solitary flowers terminating short branches; hypanthium turbinate; sepals 

 ovate, obtuse; petals small, obovate, yellow; fruit fusiform, pubescent, long-tailed. 



1. Purshia tridentata (Pursh) DC. Trans. Linn. Soc. Bot. 12: 158. 1817. 



Tigarea tridentata Pursh, Fl. Arner. Sept. 333. 1814. 



Kunzia tridentata Spreng. Syst. Veg. 2: 475. 1825. 



Type locality: "In the prairies of the Rocky Mountains, and on the Columbia 

 River." 



Range: Washington and Montana to California and New Mexico. 



New Mexico: From Dulce westward to the Tunitcha and Carrizo mountains. Dry 

 hills, in the Upper Sonoran Zone. 



17. CERCOCARPUS H. B. K. Mountain mahogany. 



Shrubs 1 to 4 meters high with Btout^rather widely branched stems and hard brittle 

 wood; leaves simple, fascicled, small; flowers solitary or fascicled with the leaves, 

 inconspicuous; hypanthium tubular, 1 cm. long or less, persistent; sepals dull whitish, 

 small; corolla wanting; stamens numerous, in 2 or 3 rows, deciduous with the calyx; 



