THE YUCCEAE. 47 
Girtner-Zeit. 11: 361. #.— Mohr, Contr. U.S. Natl. 
Herb. 6: 441, as to southern localities. 
Yuca foliis filamentosis. Morison, Plant. Hist. 2: 419. Sect. 4. pl. 
23. (1680). 
Juca Americana filamentosa. Munting, Waare Oeffening der Planten. 
471. f. (1682). Naauwkeurige Beschryv. der Aardgew. 663. (1696). 
Yucca Virginiana, foliis per ambitum apprimé filatis. Plukenet, 
Almag. Bot. 396. (1696). — Raius, Hist. Plant. 8; 573. (1704). 
Yucca foliis lanceolatis etc. Trew. Pl. Sel. 9. pl. 37. (1754). 
Yucca foliis lanceolatis acuminatis integerrimis margine filamentosis. 
Gronovius, Fl. Virgin. 152. (1739). 53. (1762). 
Acaulescent, cespitosely suckering. Leaves rather firm, generally 
stiffly erect or spreading, about half a meter long, usually something 
over 25 mm. wide, narrowed above the base, attenuate or typically 
abruptly acute, occasionally somewhat pungent, green or a little glaucous, 
the back frequently roughened in lines; marginal threads rather thick 
and curly for the group. Inflorescence 1.5 to 3 or 4 m. high, long- 
pedunculate, glabrous or very exceptionally puberulent. Flowers white, 
usually tinged with cream color or green or rarely browned, expanding 
50 to 75 mm.; style white, elongated, at most slightly swollen, 3-grooved. 
Capsule apple-green and with regularly convex carpels when maturing, 
50 or 60 mm. long and brown when ripe: seeds glossy, 4 to 5 7 mm. — 
Plates 8-12.79. 87. 
In a generalized sense, a species usually of the coastal 
plain of the southeastern Atlantic region, from Tampa, 
Fla., to above Charleston, S. C., and extending back to 
northwestern Georgia, west-central North Carolina, 
southwestern Alabama, and the gulf coast of Missis- 
sippi.— Plate 87, f. 1. 
The principal forms appear separable as follows: — 
Leaves of medium size, little recurved. Y. jilamentosa. 
Variegated with white or yellow. f. variegata. 
Outer leaves attenuate, recurved, the inner very broadly 
lanceolate, erect. var. media. 
Leaves narrow, very spreading. var. patens. 
Leaves very long, attenuate, recurving. var. bracteata. 
Leaves very broadly spatulate, not recurved. var. concava. 
Y. FILAMENTOSA Linnaeus. 
Synonymy as above. 
