290 LEUCOJACEAE 



6. Atamosco Texana (Herb.) Greene. Bulbs siibglobose, about 2 cm. in diameter, 

 neck 2.5-3.5 cm. long : leaves basal, o-4 ; Ijlades narrowly linear, 5-10 cm. long, usually 

 3-4 together : scape very slender, 1-2 dm. tall, terete : spatlie much surpassing the ovary, 

 about 2.5 cm. long: perianth yellow, somewhat coppery and striped with purple without, 

 2 5 cm. long ; lobes cuneate, acute, about 6 mm. wide : capsules about 1 cm. broad, de- 

 pressed. 



On prairies, Texas. Summer. 



7. COOPERIA Herb. 



Acaulescent herbs, with coated l)ulbs and glabrous foliage. Leaves basal : blades 



very narrow, grass-like. Scape erect, simple, 1-flowered, often shorter than the leaves. 



Perianth subtended by a bract-like spathe, salverform : tube elongated-cylindric or 



slightly dilated at the top : lobes 6, spreading above. Stamens 6 : filaments adnate to the 



throat of the perianth-tube : anthers nari'ow, erect, not versatile. Ovary 3-celled : style 



filiform : stigma slightly 3-lobed. Ovules numerous in 2 rows in each cavity. Capsule 



depressed, 3-lobed, loculicidally 3-valved. Seeds numerous, black. Pkairie Lily. 



Neck of the bulb less than 4 cm. long : perianth-tube over 7 cm. long : ovary sessile. 1. C. Drurnmondii. 

 Neck of the bulb over 5 cm. long : perianth-tube less than .5 cm. long : ovary stalked. 2. C. pedunculata. 



1. Cooperia Drurnmondii Herb. Bulbs subglobose, 2.5 cm. in diameter ; neck 

 short : leaves basal ; blades narrowly linear, erect, 1-3 dm. long : scape 1.5-3 dm. long, 

 fragile, terete : perianth whitish ; tube very slender, 7-13 cm. long ; lobes ovate, elliptic or 

 oval, 1-2 cm. long, acute : ovary sessile : capsule about 1 cm. in diameter. 



On prairies, Texas to New Mexico and adjacent Mexico. 



2. Cooperia pedunculata Herb. Bulbs subglobose, mostly 2.5-3 cm. in diameter ; 

 neck 5-7.5 cm. long : leaves basal ; blades narrowly linear, 1-3 dm. long, 2-5 mm. broad : 

 scape 1-2 dm. long, simple: perianth whitish; tube slender, 3.5-4 cm. long, slightly di- 

 lated above ; lobes about as long as the tube, oval or broadest a little above or below the 

 middle : ovary short-pedicelled : capsules about as large as those of the preceding species. 



On prairies, Texas. Spring. 



8. CRINUM L. 



Succulent acaulescent herbs, with large bulbs. Leaves basal, persistent : blades linear 

 or slightly broadened upward, spreading or arching. Scape erect, often solitary, top- 

 ped by an umbel of 2-6 flowers. Spathe 2-valved, broad. Perianth white, showy : tube 

 elongated : lobes narrowed upward. Stamens 6, exserted : filaments distinct, filiform, 

 elongated : anthers linear, versatile. Ovary 3-celled : style slender, elongated : stigma 

 entire. Capsule bursting and exposing the green corm-like seeds. 



1. Crinum Americanum L. Bulb 7.5-10 cm. in diameter, with a short neck : 

 leaves basal ; blades linear, 6-12 dm. long, strap-like, arching, denticulate : scape erect, 

 3-7 dm. tall, surmounted by 2-4 flowers : perianth showy ; lobes white, linear or linear- 

 lanceolate, 5-12 cm. long, acute ; tube green, as long as the lobes or longer. 



In river swamps, Georgia to Florida, Louisiana and Texas. Spring and summer. 



9. HYMENOCALLIS Salisb.i 

 Acaulescent fleshy herbs, with coated bulbs. Leaves basal : Ijlades linear or nearly so, 

 often strap-like. Scape terminated by a single flower or an umbel, with membranous bracts. 

 Perianth showy : tube elongated, slender : lobes narrow, nearly equal, spreading. Stamens 

 6 : filaments adnate to the perianth- tube, above which they are connected by a thin cup-like 

 or saucer-shaped crown : anthers narrow, versatile. Ovary 3-celled : style filiform, ex- 

 serted : stigma nearly entire. Ovules 1 or 2 in each cavity. Capsule thick, rather fieshy. 

 Seeds green and fleshy, 1 or 2 in each cavity. Spider Lily. 



Perianth-tube 13 cm. long or more. 1. H. Caymanensis. 



Perianth-tube 10 cm. long or less. 



A. Scapes terminated by several flowers : bulbs 3-10 cm. in diameter or more. 



Leaf-blades 4.5 cm. broad or more. 2. //. Caribaea. 



Leaf-blades 3..t cm. broad or less. 



a. Leaves green ; blades 18-24 mm. broad. 



Staminal crown 4.5 cm. broad or more : species Carolina-Floridian. 3. H. rotatum. 



Staminal crown less than 4.5 cm. broad : species Texan. 4. JI. Galvestonensis. 



^ Contributed bv Dr. J. N. Rose. 



