MEL.WTIIACr.E. (COLCHICUM FAMILY.) -165 



10. YUCCA, L. Sj'amsh Bayonet. 



Perianth cup-shaped, corolhi-like, 6-leaved. Sepals and petals nearly alike, 

 late-deciduous. Stamens 6, witii thick <;ranular club-shaped filaments; anthers 

 small, oval Ovary 3-cclled, 3-sidetl, grooved at the angles. Stigmas 3, nearly 

 sessile, oblong, concave, 2-cleft. Ovules numerous, in two rows, the rows sep- 

 arated by a false partition. Capsule oblong, 6-celled, pulpy and indehisccnt/or 

 dry and loculicidally 3-valved at the apex. Seeds numerous, flat, horizontal, 

 smooth and black. — Plants with thick palm-like leafy stems (caudcx), numer- 

 ous rigid and spine-pointed leaves, and white showy panicled flowers. 



* Stem short : capsule dry, 3-valved. 



1 . Y. filamentosa, L (Bear-GIiass ) Stem short and leafy ; leaves 

 rather rigid, spreading or recurved, varying from linear to broad-lanceolate, 

 green or glaucous, with thread-like filaments on the margins ; scape elongated, 

 branching and pubescent above ; leaves of the perianth ovate-lanceolate, white 

 tinged with yellow or purple; capsule with 3 rounded angles, locuHcidal at the 

 apex, and at length separating at the inf.cxcd sutures into three 2-celled carpels. 

 (Y. pubcrula and Y. glaucescens, Haw.) — Light or sandy soil, Florida to ^S'orth 

 Carolma, and westward. June. — Stem rarely more than a foot above the 

 ground. Leaves 1°- 2° long Scape 4° - 6° high. 



* '"f Stem tall : capsule puljijj, G-anjIi d, indehiscent. 



2. Y. gloriosa, L. Stem mostly simple, leafy at the summit; leaves 

 linear-lanceolate, rigid, smooth on the margins ; panicle large, smooth, pyrami- 

 dal, short-peduncled ; flowers white, single or clustered ; leaves of the perianth 

 lanceolate, acute. — Drifting sands along the coast, Florida to North Carolina, 

 and westward. May and June. — Stem 2° -4° high. Leaves 1°-]^° long. 

 Panicle 2° -3° long 



3. Y. aloifolia, L. Stem mostly branching, leafy above; leaves linear- 

 lanceolate, very rigid, strongly spine-pointed, very rough on the margins, the 

 lower ones reflexed ; panicle short, smooth, densely flowered, nearly sessile ; divis- 

 ions of the perianth ovate-lanceolate, white tinged with purple. (Y. Draconis, 

 L. Y. serrulata, //a!*;.) — Sands along the coast, Florida to North Carolina. 

 May and June. — Stem 4° - 8° high. Leaves and panicle 1°- lg° long. 



4 Y. recurvifolia, Sali>h. Leaves linear-lanceolate, recurved, with the 

 margins sometimes filamento.se ; interior leaves of the perianth wider than the 

 exterior. — On the sea-coast of Georgia, Elliott. July and Aug. — Stem about 

 3° high. Flowers white, tinged occasionally with green and purple ( *) 



Order 152. MELANTHACE.l^. (Colchicuii Family.) 



Perennial herbs, with parallel-nerved leaves, and regular flowers. 



Perianth of 6 nearly equal divisions, free from or coherent with the base 



of the 3-celled ovary. Stamens 6 (in Pleea 9-12), inserted on the base of 



the perianth : anthers extrorse (except in Tofieldia and Pleea). Styles 



41* 



