404 XCI. SCROPHULARIACEiE. Digitalis. 



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



Inundated banks, Del., Nuttall. Steins a few inches in length, dichoto- 



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



3-vein"ed. Flowers axillary, solitary, minute, Aug. Sept. 



Tribe 6. SIBTHORPE.E. 



16. LIMOSELLA. 



Lat. liiyius, mud ; the plant grows by the edge of puddles and muddy places. 



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

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

 seeded. — Minute^ aquatic herbs. Scape l-Jlowered. 



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

 Acaule.scenl ; Ivs. linear, scarcely distinct from the petiole; scape as long 

 as the leaves ; cor. segments oval-oblong, shorter than the calyx. — ® R. I. ! 

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

 mudd}' banks of rivers. Leaves and flower-stalks r;jdical. Flowers very small, 

 blue and white. Aug. 



Tribe 7. DIGITAI^EJ3. 



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

 petiolate. Bentk. 

 17. SYNTH YRIS. Benth. 

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

 or : sta. -2, inserted into the tube of the corolla, cxserted ; anth. 

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

 licidal, seeds plano-convex. — 4 JV. American., icith a thick root. Radi- 

 cal Ivs. fctiolate. cauliae bract-like^ on the scape-like stem, alternate. Fls. 

 racemed or spicate. 



S. HouGHTONiANA. Bcuth. (Gymnaudra Houghtoniana. Tarr. <^ Gray, 

 in edit.) — Hirsute ; radical Ivs. ovate, subcordate at base, crenulate, obtuse ; 

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

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

 Wis., Lophaml Leaves 2 — 3' by 1| — 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. digitabulum, 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 ; cat. seg- 

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

 Native of Europe. A well known, showy border flower of easy culture. It is 

 a biennial plant 2 — 3f high, with large, rough, downv 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 poi.son when 

 taken in considerable 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. July. :J:f 



2. D. FERRUGivEA. Irp^i-colorcd Foxglovc. — Z/17S. oblong-lanceolate, very smooth; 

 roz. many-flowered; cal. segments or n\-p\\\'pi\c?i\, oljtuse ; cor.linib subglobose, 

 \^oolly, lower segment ovate.— 7|. in Greece, Armenia and Circassia. Corolla 

 rust-colored, 16" long, lower lip longest, densely bearded, f 



