WOOTON AND STANDLEY—FLORA OF NEW MEXICO, 185 
Type Locatity: Near Paris, France. 
Rance: 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. Pl. 2: 725. 1891. 
Juncus spicatus L. Sp. Pl. 330. 1753. 
Luzula spicata DC. & Lam. Fl. Frang. 3: 161. 1805. 
Type Locatity: ‘‘Habitat in Lapponiae Alpibus.”’ 
Rance: 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 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..........2.2-2 22-2202 ccc cece eee eee eee 1. Yucca (p. 135). 
Flowers dicecious or polygamo-dicecious. 
Flowers polygamo-dicecious, in open panicles; ovary 
3-celled; stamens included.........--..-.------ 2. Nowra (p. 137). 
Flowers dicecious, 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. Y. 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..........-....0 20222 4. Y. neomexicana. 
Leaves broader, 15 to 50 mm. wide. 
Fruit dehiscent; plants acaulescent.............-..2.--..-. 5. Y¥. harrimaniae. 
Fruit indehiscent; plants caulescent or acaulescent. 
Stems short, 20 cm. high or less, leafy to the base; 
perianth segments narrowly lanceolate, 5 to 8 cm. 
long; fruit large, 12 to 15cm. long, very pulpy.... 6. ¥. baccata. 
