'228 ORDEK 88. SCROPHULARIACE^E. 



n. orfolculatum MX. Sts. creeping and rooting, branches ascending 12' ; Ivs. or- 

 bicular to obovate, 3-veined, entire, subsessile ; fls. J" Ions, lower lip of cor. longet 

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



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

 upper lobe broader, emarginate. Sta. 3, on the corolla, anth. cells parallel, 

 distinct. Style with two short lobes. Caps, co-seeded. ? Tropical, with 

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



11. cren&tura Wood. Submersed stems flaccid, bearing the Ivs. above; Ivs. round 

 ish, ^labroust, ct'nate, 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-parted. Corolla small, funnel- 

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

 lobes acute. Capsule obcordate, compressed, co-seeded. @ Minute, with 

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



A. pnsillus 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. tenuifolla Nutt. Lvs. linear, scarcely distinct from the petiole ; scape as long as 

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



30. 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. If 

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

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



K. Houghtoniana Benth. Hairy; Ivs. ovate, subcordate, crennlate, obtuse; stem 

 or scape denee-flwd. above ; cor. greenish, as long as the cal. Hills, Mich., and W. If. 



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

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

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

 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 J>. GRANDIFLORA (or ochrolenca). Great Yellow F. Leaves ovate, veiny, serrulate, 



clapping ; racemes downy, loose ; corolla 1J-' long, segments very broad. 4f. 



2 D. 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. PURPUREA. Purple F. Lvs. oblong, rugous, petiolate, crenate, large ; flowers in 



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



4 D. 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 



browu ; lower iegment of the corolla obovate. 2f. 



