LILIACE^E 



119 



inner rows nearly of the same size; stamens shorter than the elongated style. 

 Fruit 3' i' long, about 1^' thick, abruptly contracted at the apex into a stout point, 



nearly black when fully ripe, with sweet succulent flesh; seeds about ' wide, 

 \' thick, with narrow borders to the rim. 



A tree, rarely exceeding 15 in height, with a usually simple stem 6'-8'. in 

 diameter, and often clothed to the ground with living leaves. Bark dark brown and 

 scaly. 



Distribution. Arid plains from western Texas to eastern Arizona and southward 

 in Chihuahua. 



4. Yucca Mohavensis, Sarg. Spanish Dagger. 



Leaves 18'-20' long, about 1^' wide, abruptly contracted above the dark red lus-* 

 trous base, gradually narrowed upward to above the middle, thin and concave except 



toward the slightly thickened base of the blade, dark green, smooth on both sur- 

 faces, with stout rigid sharp-pointed tips and entire bright red-brown margins soon 

 separating into numerous long thick pale filaments. Flowers from March to 



