SPIGELIACEAE. 113 



Order GENTIANIALES. 



Herbs, shrubs, or trees, sometimes aquatic or humus plants, or vines. 

 Leaves mainly opposite: blades simple. Flowers mostly perfect, solitary 

 or in cymes. Calyx of 5 partially united sepals, or fewer. Corolla of 5 

 partially united petals, or fewer. Androecium of as many stamens as 

 there are corolla-lobes: filaments often partially adnate to the corolla- 

 tube. Gynoecium of 2 more or less united carpels. Fruit capsular, 

 baccate, or drupaceous. 



Ovary 2-celled : leaves stipulate or the bases connected by stipular lines. 



Fam. 1. SPIGELIACEAE. 

 Ovary 1-celled : leaves not stipulate. Fam. 2. GENTIANACEAE. 



FAMILY 1. SPIGELIACEAE. LOGANIA FAMILY. 



Herbs, vines, or woody plants. Leaves typically opposite. Flowers 

 in open or compact clusters. Calyx of 4 or 5 partially united sepals. 

 Corolla of 4 or 5 partially united petals. Androecium of 4 or 5 stamens. 

 Gynoecium of 2 united carpels, or rarely more. Ovary 2-celled or rarely 

 4-celled. Fruit capsular and 2-valved, or baccate or drupaceous. 



Corolla tubular-funnelform, much exceeding the calyx : anthers narrow, much shorter 



than the filaments. 1. SPIGELIA. 



Corolla urceolate or campanulate, as long as the calyx or slightly 

 longer : anthers globose-didymous, as long as the filaments 

 or longer. 



Corolla urceolate : capsule prominently 2-lobed. 2. CYXOCTOXTM. 



Corolla campanulate : capsule ovoid-globose. 3. POLTPBEMUM. 



1. SPIGELIA L. Erect herbs. Flowers in solitary or clustered spikes 

 or spike-like racemes. Calyx-lobes narrow. Corolla colored, rarely pale, tubu- 

 lar-funnelform, scarcely if at all plicate in the bud. Filaments adnate to 

 above the middle of the corolla-tube or to near the top. 



1. S. Anthelmia L. Stem 1-4 dm. tall: leaf -blades lanceolate, 3-12 cm. long: 

 inflorescence subtended by a whorl of large bracts: calyx-lobes 1.5-2 mm. long: 

 corolla 6-10 mm. long; lobes ovate to deltoid: capsules 5-6 mm. wide, tuber- 

 culate. Hammocks and cultivated grounds, Elliott's Key. (Bah., Cuba, Ant.) 

 WEST-INDIAN PINK-ROOT. 



2. CYNOCTONTJM J. F. Gmel. Annual (ours) erect herbs. Flowers in 

 terminal cymes, secund. Calyx usually 5-lobed. Corolla white or pale, urceo- 

 late, somewhat longer than the calyx. Filaments almost completely adnate to 

 the corolla-tube. Styles united by their tips in anthesis, ultimately distinct. 

 Capsules miter-shaped, the 2 horns curved. MITERWORT. 



Leaf-blades narrowed into petiole-like bases : inflorescence lax, 1. O. Mitreola. 

 Leaf-blades sessile : inflorescence dense. 2. O. aessiUfolium. 



1. C. Mitreola (L.) Britton.. Stem 1-7 dm. tall: leaf -blades thin, oblong, 

 elliptic, lanceolate, or ovate, or sometimes narrower, 1.5-8 cm. long, acute or 

 acuminate: corolla-lobes ovate to oblong-lanceolate: capsules 2-2.5 mm. long. 

 Low pinelands and lime-sinks, L. keys. [E. K.] (Bah., Cuba, Ant.) 



2. C. sessilifolium (Walt.) J. F. Gmel. Stem 1-5 dm. tall: leaf -blades thick, 

 ovate to orbicular, 1-5 cm. long, obtuse or apieulate: corolla-lobes ovate, 

 mainly shorter than the tube: capsules about 4 mm. long. Pinelands, L. keys. 

 -[E. K.] 



Flora of Florida Keys 8. 



