218 HEXAKDIilA. MONOOYMA. 



Species. 1. A. fnrinosa. 2. avrea. Mr. Le Con re 

 distinguishes several species of this genus confounded 

 ■with A.fannosa. 



An American genus, exchiding the gigantic A? fragrans 

 of Africa, which must indeed have been very negligently 

 referred to Aletris, according to the description of it by 

 Jussieu. 



318. YUCCA. X. (Adam's Needle.) 



Corolla inferior, catppanulate, segments not 



nectariferous. Filaments of the stamina sub- 

 ' davate. Style none. Cajisiile oblong, with 3 



obtuse angles, S-celled, opening at the summit. 



Seeds flat. 



Proper stem none; caudex inconspicuous or assure, ent 

 and shrubby; leaves comose, (or crowded and terminal) 

 ensiform, spiny at the point, sometimes with a sphacelate 

 fdamentiferous margin; fiowers in a terminal irregular 

 panicle, each protected b} 2 spathes; corolla white, round- 

 ish campanulale. 



Species. l.Y.^filamentosa. '2- ang-vstifolia. Stemless; 

 leaves glaucous, long, linear and mucronate, margin fila- 

 mentose; capsules large and dry, oblong-obovate. — Hab. 

 On the banks of the Missouri, fiom the confluence of the 

 river Platte to the mountains. Flowers large and white; 

 leaves scarcely half an inch wide. 



3. 7^ecurvifUia. In sandy fields, "IVorth Carolina, r. r. 

 4. gloriosa. Capsule ii.temull) filled with a sweetish 

 pulp of a purple colour. TbiS plant is culled petre, by the 

 Mexican Spaniards, and used for cordage, ropes, S^c. as 

 well as for packing-cloih, and is extremely durable. 5. 

 aloifoUa. There is also a 6th species of lliis genus dis- 

 covered by the late Mr. John Lyons, improperly calk d 

 Y. angiistifolia by the gardeners around London; it is 

 nearly allied to Y.Jilameiiioso, but much narrower leaved; 

 with its specific characters I am unacquainted. 



An American genus, affecting the sundy sea-coasts. 



319. AGAVE. L. 



Corolla superior, erect, tubulous or funnel- 

 form. Staminiferous filaments longer than the 

 corolla, erect. Cai)sule (inferior) triangular, 

 many-seeded. 



