72 MISSOURI BOTANICAL GARDEN. 
11. Leaves at most sparingly denticulate or filiferous, pungent. 
‘Lower plants. 
2. Leaves broad, rigidly ascending or spreading. 
_Y. atorrosa Linnaeus, Sp. Pl. 319. (1753). — Walter, Fl. 
‘Carol. 124. — Michaux, Fl. 1:196. — Duhamel, Arbres 
et Arbustes. 3. pl. 35. — Bryant, Flora Diaetetica. 
‘16. —Pursh, Fl. 1: 228.—Elliott, Bot. S. C. & Ga. 
-1:400. — Baker, Gard. Chron. 1870 : 1184. — Engel- 
‘mann, Trans. Acad. St. Louis. 3:38, 211, 213. — 
Koch, Dendrologie. 2?:343.—Carriére, Rev. Hort. 
49 :287. f. 48.— Watson, Proc. Amer. Acad. 
14: 251. —Baker, Journ. Linn. Soc. Bot. 18 : 225. — 
|Sargent, Silva. 10: 23. pl. 503.—Gard. Chron. iii. 
28: 262. f. 77. — Garden. 49: 218. f. 
(Y. acuminata Sweet, Brit. Fl. Gard. 2, pl. 195. (1827). —Bommer, 
‘Journ. d’Hort. Prat. 1859:42.—Lemaire, Ill. Hort. 18:95. — 
Baker, Gard. Chron. 1870: 1123. Ref. Bot. 5, pl. 316. — Engel- 
mann, Trans. Acad. St. Louis. $:40.— Garden. 82133. — Gard. 
Chron. n. s. 43110. 
Y. gloriosa acuminata Carriére, Rev. Hort. 1868: 157. — Baker, Journ.. 
Linn. Soc. Bot. 18 : 226. 
Y. integerrima Stokes, Bot. Mat. Med. 2 ¢ 267. (1812). 
Si ratemns 
Yuca, sive Iucca Perana. Gerarde, Herball. 1359. f. (1597). 
Yuca foliis Aloes. Bauhin, Pinax. 91. (1623, 1671).— Morison, Plant. 
Hist. 23419. Sect. 4. pl. 23. (1680).— Pontedera, Anthologia, 295. 
pl. 6. f. n. (1720). 
Yuca sive Iucca. Parkinson, Paradisus Terrestris. 434. f. (1629). 
Yucca, sive Iucca Peruana. Johnson in Gerarde, Herball. 1543. f. 
_ (1636). —Raius, Hist. Plant. 2: 1201. (1688). 
Juca gloriosa. Munting, Waare Oeff. der Pl. 471. pl. (1682). — Naauw- 
keur. Beschryv. der Aardgew. 663. (1696.) 
‘Yucca; foliis Aloés. Boerhaave, Index Alter Pl. Hort. Lugd.-Bat. 
2132. (1720, 1727). 
Cordyline foliis pungentibus integerrimis. Van Royen, Fl. Leyd. Prod. 
22. (1740). 
Yucca foliis margine integerrimis. Linnaeus, Hort. Cliff. 130.(1737) 
Hort. Ups. 88. (1748). 
Shortly caulescent and cespitose or the trunk 3 to 5 m. high and with 
several branches. Leaves slightly glaucous when young, smooth or the 
dorsal lines roughened, rather thin but rigid, often concave near the in- 
rolled purfgent usually dark apex, about .5 m. long and 50 mm. wide, the 
