ORDER XCIV. LENTCBULARIACE.E. 477 



3. R. cilio'sa, (Pursh.) Stem erect, branching. Leaves ovate-oblong, 

 ciliate, hairy along the veins. Bracts short ; segments of the calyx 

 subulate, short, — Blue. If. July — Sept. Southern Geo. 1 — 2 ft. 



Dipteracauthus ciliosus, Nees. 



4. R. oblongifo'lia, (Mich.) Stem erect, obtusely angled, branched 

 or simple, pubescent. Leaves sessile, obovate, obtuse ; lower leaves 

 nearly round. Calyx with the segments filiform, as long as the tube 

 of the corolla, hispid; segments of the corolla emarginate. Capsule 

 surrounded with a glandular ring. Seed few. — Blue, spotted with yel- 

 low. 21 . May — Sept. Very common. 1 — 2 feet. 



Calophanes oblong if olius, Don. 



5. R. hoiistra'ta, (Mich.) Stem diffuse, glabrous. Leaves on long 

 petioles, obtuse oval. Flowers nearly sessile. Capsule linear. — Blue. 

 2£. May — Sept. Sandy pine-barrens. Southern Geo. 



Calophanes humistratus. 



6. R. cilio'sa, (Le Carte.) Stem erect, white-pubescent, hirsute. 

 Leaves oval-oblong, subcrenate, running into a short petiole, hirsute. 

 Flowers subsessile. Calyx bracteolate ; bracts oblong-lanceolate, longer 

 than the calyx ; lobes of the calyx linear, setaceous, hirsute, half the 

 length of the corolla. — East Florida. 



Dipteracauthus Mitchellianus, Benth. 



T. R. tubiflo'ra, (Le Carte.) Hirsute or nearly glabrous. Stem 

 branching. Leaves oblong, entire or undulate, subsessile. Flowers sol- 

 itary, axillary, opposite, peduncles short ; lobes of the calyx linear- 

 lanceolate, one thud the length of the corolla. — Georgia and Florida. 



Dipteracauthus uociijlorus, Benth. 



8. R. tcbero'sa, (L.) Stem erect, villous. Leaves ovate, cuneate at 

 the base, attenuate into the petiole, entire, crenate or undulate, smooth 

 or pilose ; lobes of the calyx subulate, acuminate, more or less hirsute. 

 — Throughout the South. Cryphiacanthus Barbadeusis, Neee. 



Genus III.— ELYTRARIA. Vahl. 2—1. 

 (From the Greek elutron, an envelope.) 



Calyx 4 — 5-parted, with the front segment bifid. Corolla 

 5-cleft. with the segments nearly equal. Stamens 2, with 2 

 barren filaments. Capsule 2-celled, 2-valved, few seeds in each 

 cell. 



1. E. viugata, (Mich.) Stem none. Leaves long, entire, lanceolate, 

 cuneate at the base, scabrous on the upper surface, slightly undulate ; 

 eeape covered with ovate, amplexieaul scales. Flowers in dense spikes. 

 Bracts inclosing the flowers rigid ; scales 2 at the base of the calyx, pu- 

 Di Calyx pubescent. — If. May — June. Damp pine-barrens. 

 1—2 feet. 



Order XCIV.— LEXTIBULARIA'CEtE. (Butterwort 

 Family.) 



Calyx divided, persistent, hypogynous. Corolla irregular, 

 bilabiate, -purred. Stamens 2, included within the corolla. 

 Anthers simple, 1 -celled. Ovary 1 -celled. Style 1, short 



