404 XCI. SCROPHUL^RIACE^. Digitalis. 



H. MiCRANTHEMoiDEs. Nutt. (Hcrpestis micrantha. Ell.) 



Inundated banks, Del., NiMaU. Stems a few inches in length, dichoto- 



mously branched. Leaves roundish-ovate, opposite, crowded, sessile, obscurely 



3-veined. Flowers axillary, solitary, minute. Aug. Sept. 



Tribk 6. SIBTSIORPE^. 

 16. LIMOSELLA. 



Lat. Uinvs, mud ; Ihe plant grows by the edge of'puddles and muddy places. 



Calyx 5-cleft ; corolla shortly canipanulate, 5-cleft, equal ; stamens 

 approximatiug in pairs ; capsule partly 2 celled, 2-valved, many- 

 seeded. — Minute., aquatic herbs. Scajje l-Jloivered. 



L. TENUiroLiA. Nutt. (L. subulata. Ices and 1st edit.) Mudwort. 



Acaulescent ; hs. linear, scarcely distinct iiom the petiole ; scape as long 

 as the leaves ; cm: segments oval-oblong, shorter than the calyx. — (T) R. I. ! 

 Mass. ! N. Y., Penn. A minute plant, an inch in height, growing on the 

 muddy banlcs of rivers. Leaves and flower-stalks radical. Flowers very small, 

 blue and white. Aug. 



Tribe 7. DIGITALEJE. 

 Inflorescence centripetal, racemose. Leaves all alternate, the lower crowded, 

 petiolate. Benth. 

 17. SYNTHYRIS. Benth. 

 Calyx 4-parted ; cor. subcampanulate, segments 4, erect-spreading 

 or ; sta. 2, inserted into the tube of the corolla, exserted ; anth. 

 cells parallel, distinct ; caps, compressed, obtuse or emarginate, locu- 

 licidal, seeds plano-convex. — % N. A?nerican, icith a thick root. Radi- 

 cal I vs. petiolate, cauline bract-like, on the scape-like stem, alterriate. Fls. 

 racemed or spicate. 



S. IIouGHTONi.iNA. Benth. (Gymnandra Houghtoniana. Torr. <|« Gray, 

 inedit.) — Hirsute ; radical Zrs. ovate, subcordate at base, crenulate, obtuse'; 

 sca.fe erect, clothed with foliaceous bracts, dense-flowered above ; cor. as long 

 as the calyx, upper segment longer tTian the other very short ones. — Dry hills. 

 Wis., Ln'pham! Leaves 2 — 3' by IJ — 2', on petioles about I' long, some of the 

 leaves often suborbicular. Bracts much smaller, ovate and ovate-lanceolate, 

 clasping. Scape 9 — 12' high. Spike elongating in fruit. 



18. DIGITALIS. 



Lat. dlgitabuhifn, a thimble ; from the form of the flowers. 



Calyx 5-parted ; corolla campanulate, ventricose, in 5 subequal 

 lobes ; capsule ovate, 2-celled, 2-valved, with a double dissepiment. — 

 Herbs or shrubs of Europe and Asia. Lower Ivs. crowded, petiolate, 

 upper alternate. Fls. in showy racemes. 



1. D. PURPUREA. Purple Foxglove. — Lvs. oblong, rugose, crenate ; cal. seg- 

 ments ovate-oblong; cor. oljtuse, upper lip entire; pcd. as long as the calyx. — 

 Native of Europe. A well knov^ai, showy border flower of easy culture. It is 

 a biennial plant 2 — 3f high, with large, rough, dovvny leaves. Flowers nume- 

 rous, in a long, simple .spike, large, crimson, often white, with beautiful eye- 

 like spots within. The whole plant is a violent and dangerous poison when 

 taken in co'iisiderable quantities, producing delirium, convulsions and death. 

 But in the hand of the judicious physician it becomes a valuable medicine, act- 

 ing as a sedative and diuretic. Jul}^ :j:f 



3. D. FERHUGiNEA. Iro-71-colorcd Foxglovc. — Z/r5.oblong-lar:ceolnte, very smooth; 

 rar.. many-flowered; cal. segments oyz\-p:\\\^1\c^\, obtuse; cor. limb subglobose, 

 woolly, lower segment ovate. — % in Greece, Armenia and Circassia. Corolla 

 lust-cokircd, IG'' long, lower lip longest, denselv bearded, f 



