208 CALIFORNIA ACADEMY OF SCIENCES. 



Agaye, sp. Near A. Huachucensis Baker, Amaryllidece, 

 171 — Very abundant in some localities from Paraiso north- 

 ward. 



Agaye, sp. Near A. deserti Engelm. — Comondu and north- 

 ward; very abundant. 



Yucca yai.ida (Plate XI). Arborescent, 15-20 feet high, 

 trunks 8 inches to 2 feet or more in diameter, growing in 

 clumps and branching from near the base or higher: leaves 

 thin, smooth, flexible, 6-9 inches long, h ^o |-inch wide at 

 the center, tapering to a stout involute spine above, and 

 narrowed to less than half its width above the brown, di- 

 lated base, margin separating into slender, whitish, recurved 

 threads; panicle pyramidal, about a foot long, somewhat 

 pubescent: perianth cream-white, 2-2J inches broad on 

 pedicels nearly as long as the segments, which are broadly 

 lanceolate and nearly equal in width: stamens papillose, 

 less than half as long as the segments, about equaling the 

 style, uncinate after maturity; anthers sagittate: ovary ob- 

 long, abruptly narrowed to the nearly sessile stigma; ovules 

 thick. 



This Yucca is certainly distinct from Y. haccata, and does 

 not seem referable to any of its Mexican varieties. It does 

 not begin to bloom until about the middle of May, when 

 Y. haccata to the north of it, has already nearly mature 

 fruit It was observed from San Jorge to San Borgia, and 

 near Patrocinia formed forests miles in extent; the trees in 

 general ajipearance strikingly like Y. hrevifolia, though the 

 trunks were much less covered with old retlexed leaves. 



Yucca baccata Torr. — Agua Dulce. Trunks ten feet 

 high. 



Yucca Whipplei Torr. — San Julio. 



NoLiNA BiGELOYii (Torr.) ? — Ubi. Too young. 



NoLiNA, sp. — Paraiso. 



