WOOTON AND STANDLEY FLORA OF NEW MEXICO. 135 



Type locality: Near Paris, France. 

 Range: British America to California and New Mexico. 



New Mexico: "Winsors Ranch (Slandley 4167). Damp woods, in the Canadian 

 Zone. 



3. Juncoides spicatum (L.) Kuntze, Rev. Gen. PI. 2: 725. 1891. 



Juncus spicatus L. Sp. PI. 330. 1753. 



Luzula spicata DC. & Lam. Fl. Franc. 3: 161. 1805. 



Type locality: "Habitat in Lapponiae Alpibus." 



Range: Temperate North America; also in Europe and Asia. 



New Mexico: Pecos Baldy; Truchas Peak; Baldy. Meadows, in the Arctic- 

 Alpine Zone. 



21. DRACAENACEAE. Yucca Family. 



Shrubby plants or trees with woody caudices copiously furnished with narrow rigid 

 leaves; flowers in racemes or panicles terminating scapes or scapelike stems; perianth 

 greenish or white, the sepals and petals similar; gyncecium of :; united carpels; ovary 

 superior, 1 to 3-celled; styles united, sometimes very short or obsolete during anthesis; 

 ovules 2 to several or many in each cell; fruit a loculicidal capsule, or berry-like and 

 indehiscent. 



KEY to the genera. 



Flowers perfect 1. Yucca (p. 135). 



Flowers dioecious or polygamo-dioecious. 



Flowers polygamo-dioecious, in open panicles; ovary 



3-celled; stamens included 2. Nolixa (p. 137). 



, Flowers dioecious, in dense panicles; ovary 1-celled; 



stamens exserted 3. Dasylirion (p. 138). 



1. YUCCA L. Yucca. 



Thick-stemmed (in several species the stems short and mostly subterranean) peren- 

 nials with narrow, mostly rigid, sharp-pointed leaves and large panicles or racemes of 

 white campanulate flowers; fruit a 3-celled capsule, this dry or sometimes baccate 

 and flei by. 



KEY TO THE SPECIES. 



L( aves l<> mm. wide <>r less. 



Stems conspicuous in old plants, reaching a height of 3 to 

 4 meters, nuked below, clothed with a tuft of leaves 



above; inflorescence a much branched panicle 1. Y.elata. 



Stems short, mostlj subterranean, covered with leaves to 

 the base; inflorescence racemose, sometimes with a 

 few branches. 

 Flowers large, 6 cm. long or more; style oblong, white. . 2. Y. baileyi. 

 Blowers small, I em. long or less; style swollen at the 

 1ki.sc, greenish. 

 Leaves narrow, 6 nun. wide or Less, very thick, 



ely filif erous 3. Y.glauca. 



l,i aves broader, S to lit nun. wide, thin, al.undanth 



filiferous I. F". neomexieana. 



Leaves broader, L5 to -' ( > nun. wide 



Fruit dehiscent; plants acaulescent i I karrimaniae. 



Fruit indehiscent; plants caulescent ora< lulescent. 



Stem; short, 20 cm. high or less, leaf] to the bfi 

 perianth segments nanow h lanceolate, 5 to 8 cm. 



fruit large, 12 to 15 cm long, very pulpy . . > I 



