iJ28 ORDER 88. SCROPHULARIACE^E 



OT. orbiculatum MX. Sts. creeping and rooting, branches ascending 12' ; Ivs. or- 

 bicular to obovate, 3-veined, entire, subsessile ; fls. y long, lower lip of cor. longer 

 than the calyx. Brackish mud, Del., and S. (M. micranthum, &c.) 



27. HYDRANTHELIUM, H. B. K. Calyx 4-cleft. Cor. 3-cleft, the 

 upper lobe broader, einarginate. Sta. 3, on the corolla, antli. cells parallel, 

 distinct. Style with two short lobes. Caps, oo-seeded. sy Tropical, with 

 opposite leaves and minute, axillary flowers. Habit of Callitriche. 



II". crcnatum Wood. Submersed stems flaccid, bearing the Ivs. above; Ivs. round 

 ish, glabrous, crinate, abrupt at base, 7-9-veined, on flat, veiny petioles ; pedicels 3", 

 reflexed ; corolla little exserted, white. Pools, Miss., La. (Dr. Hale). 



28. AMPHIANTHUS, Torr. Calyx 5-partecl. Corolla small, funnel- 

 form, limb 4-lobed, lower lobe larger. Sta. 2, included, stylo lightly bifid, 

 lobes acute. Capsule obcordate, compressed, oo-seeded. Minute, with 

 flowers both axillary, and on terminal, 2-bracted peduncles 1' long. 



A. pusillus Torr. On wet rocks, Newton Co., Ga. Leaves nearly radical, linear, ob 

 tuse ; 1 2" long ; flowers minute, white. March, April. 



29. LIMOSELLA, L. MUDWORT. Calyx 5-cleft. Cor. shortly cam- 

 panulate, 5-cleft, equal. Sta. approximating in pairs. Capsule partly 2- 

 celled, 2-valved, many-seeded. ? Minute. Scape 1-flowered. 



L. tenuifolia Nutt. Lvs. linear, scarcely distinct from the petiole ; scape as long as 

 the leaves ; cor. segments oval-oblong, shorter than the cal. Mud, Penu., and N. 1'. 



3D. SYNTHYRIS, Benth. Calyx 4-parted. Corolla subcampanulate, 

 segments 4, erect-spreading or 0. Sta. 2 (rarely 4), on the cor., exserted, 

 anth. cells parallel, distinct. Caps, compressed, obtuse or emarginate. U 

 N. American, with a thick root. Radical leaves petiolate, cauline bract- 

 like, on the scape-like stem, alternate. Fls. racemed or spicate. May. 

 8. IBoiiiilitom * na Benth. Hairy; Ivs. ovate, subcordate, crenulate, obtuse; stem 

 or scape dense-flwd. above ; cor. greenish, as long as the cal. Hills, Mich., and W~. if. 



31. DIGITALIS, L. FOX-GLOVE. Calyx 5-parted. Cor. campanulate, 

 ventricous, upper lip reflexed, spreading, middle segment of the lower lip 

 broadest. Caps, ovate, 2-celled, 2-valved, with a double dissepiment. 2 

 Europe, Asia. Lower leaves crowded, petiolate, upper alternate. Flowers 

 in showy racemes. Poisonous and medicinal. July, August. 



Corolla light-yellow, tube twice longer than the lower lip Nos. 1, 2 



Corolla purple, white, brown, often spotted, tube inflated and short Nos. 3 5 



1 I>. GRANDIFLORA (or ochroleuca). Great Yellow F. Leaves ovate, veiny, serrulate, 



clasping ; racemes downy, loose ; corolla !' long, segments very broad. 4f. 



2 I>. LUTEA. Plant very smooth, with lance-oblong leaves ; raceme smooth, with many 



flowers, all on one side ; corolla 8 10" long, tube not inflated. 2f. 



3 D. PURPUKEA. Purple F. Lvs. oblong, rugous, petiolate, crenate, large ; flowers in 



a -Ong, 1-sided raceme, thimble-shaped, purple or white, spotted. 2 3f. 



4 I>. FERRUGINEA. Leaves very smooth, lance-oblong ; corolla rusty-brown, the lower 



lip densely bearded, its middle segment ovate. 4f. 



5 D. LANATA. Leaves lance-oblong, often woolly ; flowers downy or woolly, white or 



brown ; lower segment of the corolla obovate. 2f. 



