NEMASTYLIS. Ill 



ments ; filaments free in the typical species, united in a cylindrical 

 column in § Chlamydustijlis; anthers linear ; connective narrow or 

 broad. Ovary clavate, 8-celled ; ovules many, superposed ; style- 

 arma cleft down to the base into two subulate forks. Capimle 

 clavate-oblong, loculicidally 3-valved. Seedn minute. — liootstoclc 

 a bulb with brown membranous tunics. Root-leaves narrow linear 

 or subterete. Spathes one or more, peduncled. Flowers fugitive, 

 usually blue, and more than one to a spathe. 



Subgenus Nematostylis pkoper. — Filaments nearly free. 



Connective slender, and anthers curling up . . Sp. 1-2. 

 Connective broad, and anthers not curling up . Sp. 3. 



Subgenus Chlamydostylis. — Filaments united in a cylindrical 

 column to the summit Sp. 4-17. 



1. N. c^LESTiNA Nutt. in Amer. Phil. Trans, n.s. v. 157. I.ria 

 cmlestina Bartram, Travels, 153, t. 3. Mariea cmlestina Klatt. 

 Beatonia ccdestlna Klatt. — Bulb small, globose. Root-leaves 1-2, 

 narrow linear, a foot or more long. Stem slender, 1^-2 ft. long, 

 bearing a single terminal clusters and 3-4 reduced leaves. Spathe 

 cylindrical, 1^ in. long, usually 1-flowered ; outer valve shorter. 

 Perianth sky-blue, an inch long; segments obovate-cuneate, sub- 

 equal. Filaments free, half as long as the linear anthers. Style- 

 branches shorter than the anthers. Capsule clavate, \-% in. long. 



Hab. Southern United States ; first gathered by Bartram, after whom the 

 moss-genus Bartramia is named. 



2. N. ACUTA Herb, in Bot. Mag. sub t. 3779 ; Bot. Mag. t. 6GGG . 

 A^. geminijiora Nutt. Ixia acuta Bart. — Bulb ovoid, f-1 in. diam. ; 

 tunics dark brown. Root-leaves 2-3, linear, plicate, i-l ft. long. 

 Stem ^-1 ft. long, bearing 2-3 long-peduncled clusters, bracteated 

 at the fork by a large linear leaf, and sometimes with one below it. 

 Spathe 2-3-flowered, 1-1^ in. long; outer valve shorter. Perianth 

 bright blue ; segments obovate-cuneate, subequal, an inch long. 

 Filaments very short ; anthers J-^ in. long, curling up. Style- 

 branches half as long as the anthers. Capsule turbinate. 



Hab. Texas and Arkansas. Received alive lately from Messrs. Joad, Bull, 

 and Greene. 



8. N. PURPUREA Herb, in Bot. Mag. sub t. 3779. Eiistylus pur- 

 purea Engelm. & A. Gray. — Bulb ^-1 in. diam. Root-leaves 1-3, 

 linear, subpetiolate, plicate, 1-2 ft. long. Stem slender, 1-2 ft. 

 long, with 1-4 clusters on long erect peduncles bearing 2-3 plicate 

 leaves, the lowest a large one. Spathe 2-3-flowered, 1-li^ in. long; 

 valves lanceolate, green, outer shorter. Perianth bright blue ; 

 outer segments f in. long, broad obovate ; inner smaller, subacute. 

 Filaments very short; anthers linear, \ in. long, with a broad 

 connective. Style-branches half as long as the anthers. Capsule 

 clavate, ^ in, long. 



Hab. Texas and Louisiana : first gathered by Drammoud. 



