THE YUCCEAE. 89 



Aloes Floridana procerior. Plukenetius, Amalth. Bot. 10. (1705). 

 Aloe Yuccae foliis caulescens Floridana. Plukenetius, Amalth. Bot. 



10. (1705). Almag. 19. pi. 256. f. 4. (1696, 1700). 

 Aloe; Americana; folio Yuccae; arborescens. Boerhaave, Index Alter 



Plant. Hort. Lugd.- Bat. 2 : 181. (1720, 1727). 

 Yucca arborescens, foliis rigidioribus, rectis, serratis. Dillenius, 



Hort. Elth. 2:435..pZ. 323. (1732). 

 Yucca foliorum margine crenulato. a. Linnaeus, Hort. Cliff. 130. 



(1737). 

 Cordyline foliis pungentibus crenulatis. Van Eoyen, Fl. Leyd. Prod. 



22. (1740). 



Low slender tree, somewhat short-branched above and often cespi- 

 tosely suckering. Leaves flat, rather thick, rigid, denticulate on the 

 margin, very pungently brown-pointed. Inflorescence usually close to 

 the leaves, compactly panicled. Flowers creamy, tinged with green or 

 purple toward the base; ovary shortly stipitate; style short, not con- 

 tracted, oblong or a little tumid, abruptly starting from the ovary. Fruit 

 oblong-prismatic, nearly black, coreless, with dark purple pulp; seeds 

 glossy, round or oval, often acute at one end, 5 or 6 X 6 or 7 mm. 

 Plates 49-50. 84, /. 6. 



Virgin Isles, Jamaica, eastern coast of Mexico (Vera 

 Cruz), the Bermudas, Atlantic and Gulf States southward 

 from about Pamlico Sound ; and occasionally escaping from 

 cultivation as far inland as Monroe in northwestern Louisi- 

 ana. Plate 95, f. 1. 



The principal forms of this species, which has been cul- 

 tivated in Europe since 1605 and which differs from all 

 other Yuccas in its stipitate ovary and coreless purple-pulped 

 fruit, commonly formed without Pronuba aid, may be dis- 

 tinguished as follows : 



Panicle glabrous. 



Leaves rigid, ascending, usually 25 to 40 mm. wide when developed. 

 Green throughout. Y. aloifolia. 



Purplish tinged. f . purpurea. 



Yellow-margined. f. marginata. 



With yellow and white center, and often red variegation, f . tricolor. 

 Leaves recurving. 



Leaves 40 to 50 mm. wide. Stem tall. 



Branching above. var. Draconis. 



Branching at base. f . conspicua. 



Leaves 10 to 20 mm. wide. Stem low. 



