250 PROCEEDINGS OF THE ACADEMY OF [DeC, 



Inflorescence a panicle of racemes, the pedicels 3-12 to an 

 axil. Capsule oblong or oblong-ovoid, 4-5 mm. long. 

 Leaves white and densely stellate -tomentose beneath. 



3. T^. lychnitis. 

 Leaf-blades entire or but obscurely crenate, densely pubescent 



above, those of the stem decurrent. Pedicels one to an axil. 

 Sepals equaling the capsule. Inflorescence densely crowded. 



4. Y. thapsus. 



1. Verbascum blattaria L. 



Old fields and roadsides, throughout area north of central Florida. 

 Naturalized from Eurasia. 



2. Verbascum virgatum With. 



Berkeley Co., South Carolina. Naturalized from Eurasia. 



3. Verbascum lychnitis L. 



Old fields and roadsides, occasional in North Carolina. Natural- 

 ized from Eurasia. 



4. Verbascum thapsus L. 



Old fields, roadsides and thickets, throughout area north of central 

 Florida, usually common. Naturalized from Eurasia. 



18. PENSTEMON [Mitchell] Schmidel. 

 Penstemon Schmidel, Icon. PI. 2. 1762. 



Type species, Chelone pentstemon L. 



Leaf-blades dimorphic, those of the prostrate wintering stems entire 

 or few-toothed, those of the erect flowering stems bipinnatifid 

 with linear segments. Corolla pink-purple, its throat strongly 

 inflated and but obscurely ridged anteriorly. Anther-sacs 

 shallowly saccate. Sterile filament conspicuously exserted. 



1. P. dissedus. 

 Leaf-blades uniform, entire or merely toothed. Corolla reddish- 

 purple to white, its throat moderately to slightly inflated, 

 obviously ridged anteriorly. Sterile filament included or slightly 

 exserted. 



Anther-sacs dehiscent by short proximal slits, the distal portion 

 of each remaining pouch -like. Leaf -blades entire or essen- 

 tially so. Branches of the inflorescence elongate. Corolla 

 white, unlined, nearly glabrous within the throat. 



2. P. multiflorus. 

 Anther-sacs dehiscent their entire length, so never pouch-like. 



Leaf -blades more or less serrate. Branches of the inflorescence 



less elongate. Corolla lanose within, nearlj^ always with 



more or less conspicuous lines of deeper color within on the 



anterior side. 



Corolla with throat relatively inflated, its mouth open, not 



closed by the anterior lip. Sterile filament slightly to 



moderately densely bearded. Plants ialler. 



