228 The Ohio Journal of Science [Vol. XXI, No. 7, 



2. Digitalis lutea L. Yellow Foxglove. 



Glabrous perennial, 2-3 ft. high. Leaves oblong or lanceolate, 

 denticulate, 4-4j^ in. long, % in. wide, ciliate only on the margin, 

 sessile, narrowed at the base. Raceme many-flowered; corolla yellow to 

 white, glabrous outside; calyx-segments lanceolate, acute. June- 

 August. A waif in Cuyahoga Count^^ From Europe. 



12. Afzelia Gmel. Mullen Foxglove. (Dasistoma Raf., 



according to Pennell). 



Erect herbs with opposite leaves, and yellow flowers solitary 

 in the axils of leaf-like bracts. Corolla rotate-campanulate, the 

 lobes nearly equal, and longer than the tube. Stamens 4, 

 slightly unequal, not exserted; anthers glabrous; filaments 

 short, villous; anther-sacs parallel and distinct. Seeds numerous, 

 reticulated. 



1. Afzelia macrophylla (Nutt.) Ktz. Mullen Foxglove. 



Puberulent or glabrate, simple or sparingly branched, 4-6 ft. high, 

 perennial by buds in the crown. Lower leaves long-petioled, pinnately- 

 divided, 6-15 in. long, the segments dentate or pinnatifid; the upper 

 leaves short-petioled or sessile, entire, 1-3 in. long. Flowers 3^-/8 in. 

 long, sessile and solitary in the axils of the upper leaves; calyx-lobes 

 lanceolate or ovate; corolla yellow, 2-3 times as long as the calyx, the 

 corolla-tube, except the lower part, very woolly inside. Capsule globose, 

 pointed. In thickets, and along streams. August-October. General in 

 western Ohio, as far east as Huron, Noble, and Vinton Counties. 

 (Dasistoma macrophylla (Nutt.) Raf., according to Pennell.) 



is. Dasistoma Raf. False Foxglove. (Aureolaria Raf., 



according to Pennell). 

 Large, erect herbs, more or less parasitic on the roots of 

 other plants, with opposite, or whorled, or some alternate 

 leaves, and large, showy, yellow flowers in terminal, usually 

 leafy-bracted racemes. Calyx campanulate or turbinate, 5-lobed, 

 the lobes sometimes foliaceous. Corolla funnel-form or cam- 

 panulate-funnelform, with five rather unequal, spreading 

 lobes, the tube villous or pubescent within. Stamens 4, 

 didynamous, included, villous or pubescent, the anther-sacs 

 parallel and awned at the base. Capsule oblong, acute. 



\. Leaves all toothed or pinnatifid 2. 



1. Leaves, at least the upper ones, entire 3. 



2. Plants, especially the sterns, glaucous or glabrous; calyx and corolla glabrous 



outside; perennial ". D. virginica. 



2. Plants glandular-pubescent or hirsute; calyx rind corolla pubescent outside; 



annual D. pedicidaria. 



3. Plants jjubescent; calyx pubescent outside D. flava. 



3. Plants glabrous; calyx glabrous outside; leaves all entire or the lower ones 



dentate D. laevigata. 



