WOOTON AND STANDLEY FLORA OP NEW MEXICO. 135 



Ttpe locality: Near Paris, France. 

 Range: British America to California and New Mexico. 



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

 Zone. 



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



Jimcus spicatus L. Sp. PI. 330. 1753. 



Luzula spicata DC. & Lam. Fl. Fran?. 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; gynoecium of 3 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-dicecious. 



Flowers polygamo-dicecious, in open panicles; ovary 



3-celled; stamens included 2. Nolina (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 fleshy. 



KEY TO the species. 



Leaves 10 mm. wide or less. 



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

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



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



Stems short, mostly 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. F. baileyi. 

 Flowers small, 4 cm. long or less; style swollen at the 

 base, greenish. 

 Leaves narrow, 6 mm. wide or less, very thick, 



sparsely filiferous 3. Y. glauca. 



Leaves broader, 8 to 10 mm. wide, thin, abundantly 



filiferous 4. Y. neomexicana. 



Leaves broader, 15 to 50 mm. wide. 



Fruit dehiscent; plants acaulescent 5. Y. harrimaniae. 



Fruit indehiscent; plants caulescent or acaulescent. 



Stems short, 20 cm. high or loss, leafy to the base; 

 perianth segments narrowly lanceolate, 5 to 8 cm. 

 long; fruit large, 12 to 15 cm. long, very pulpy 6. Y. baccata. 



