258 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



15. ATRAGENE L. Virgin's bower. 



Vines, woody at least below, with compound leaves; peduncles bearing single, rather 

 large flowers; sepals thin, widely spreading; some of the outer filaments enlarged and 

 petaloid. 



1. Atragene pseudoalpina (Kuntze) Rydb. Bull. Torrey Club 29: 157. 1902. 



Clematis pseudoatragene pseudoalpina Kuntze, Verh. Bot. Ver. Brand. 26: 160. 1884. 



Clematis occidentalis albiflora Cockerell, Bot. Gaz. 29: 281. 1900. 



Type locality: Colorado. 



Range: Colorado and New Mexico. 



New Mexico: Tunitcha Mountains; Dulce; Tierra Amarilla; Raton; Zuni Moun- 

 tains; Santa Fe and Las Vegas mountains; Sandia Mountains; Mogollon Mountains; 

 Black Range; White and Sacramento mountains. Damp woods, in the Transition 

 and Canadian zones. 



16. TRAUTVETTERIA Fisch. & Mey. 



Perennial herb with alternate, 2 or 3-ternately compound leaves; flowers in corymbs 

 or panicles, often polygamous or dioecious; sepals 4 or 5, petal-like, whitish, soon 

 deciduous; petals wanting; achenes numerous, in a head, compressed; ovule ascending. 



1. Trautvetteria grandis Nutt.; Torr. & Gray, Fl. N. Amer. 1: 37. 1839. 



Trautvetteria media Greene, Leaflets 2: 192. 1912. 



Type locality: "Shady woods of the Oregon." 



Range: British Columbia to Idaho, California, and New Mexico. 



New Mexico: Santa Fe and Las Vegas mountains; Sandia Mountains; Mogollon 

 Mountains. Transition and Canadian zones. 



A rather showy plant with its panicles of white flowers and its large leaves, growing 

 in bogs and along the edges of streams. The type of T. media is Metcalfe's 517 from 

 the West Fork of the Gila. It differs in no perceptible way from typical grandis. 



53. BERBERIDACEAE. Barberry Family. 



Shrubs (one species low) with alternate, exstipulate, simple or compound, more or 

 less spiny-toothed leaves; flowers yellow, in racemes, the pedicels mostly opposite; 

 perianth segments distinct, free; anthers opening by uplifted valves; pistil simple; 

 fruit a berry. 



KEY TO THE GENERA. 



Stems spiny; leaA^es simple 1. Berberis (p. 258). 



Stems not spiny; leaves compound 2. Odostemon (p. 259). 



1. BERBERIS L. Barberry. 



A low shrub, 40 to 80 cm. high, with simple, elliptic to oblanceolate, fascicled 

 leaves with weakly spiny-toothed margins; stems spiny; flowers crowded in short 

 reflexed racemes; fruit a scarlet ellipsoidal berry about the size of a currant. 



1. Berberis fendleri A. Gray, Mem. Amer. Acad. n. ser. 4: 5. 1849. 



Type locality: "Santa Fe Creek, at the foot of steep and rocky banks, near the 

 water," New Mexico. Type collected by Fendler (no. 15). 



Range: Colorado and northern New Mexico. 



New Mexico: Dulce; Tierra Amarilla; Brazos; Sandia Mountains; Pajarito Park; 

 Santa Fe and Las Vegas mountains. Open hillsides, in the Transition Zone. 



A not uncommon shrub of open slopes in the mountains of the northern part of the 

 State. It would be well worth cultivation as a hedge plant. 



