1919.] NATURAL SCIENCES OF PHILADELPHIA. 253 
Penstemon laevigatus Ait., Hort. Kew. 2: 361. 1789. “Chelone Pentstemon 
J. F. Miller ic. 4. Nat. of North America. Cult. 1776, by John 
Fothergill, M. D.” “The ‘iseartetocs. and also the plate of Miller, clearly 
denote the species now considered. 
Bartramia pulchella Salisb., Prod. Stirp. eg 0 sty 3 99. 1796. New 
name for Penstemon laevigatus Ait. Type of genus se eae Salisb. 
Penstenon pentstemon (L.) Macm., Bull. Torr. Bot. Club 19 1892. 
Meadows, river-banks and peers of forest, loam or a frequent 
or common through the Piedmont, both east and west of the moun- 
tains, and through the lower valleys of the southern Appalachians: 
descending along river-banks slightly into the Coastal Plain. Ranges 
from Virginia to northern Florida and Louisiana, and inland prob- 
ably to Illinois; perhaps introduced westward. 
Flowering froin mid-May to mid-June, fruiting in J uly and August. 
Corolla externally violet-purplish, deepest on tube, on throat and 
lobes pale-purplish, nearly white on anterior side; within white, 
and within throat on anterior side with more or less evident violet 
lines. Sterile filament with yellow hairs. 
Pennell (Georgia)—9787. (Alabama)—9746, 9756, 9780. 
5. Penstemon calycosus Small. 
Penstemon calycosus Small, oe Torr. Bot. Club 25: 470. 1898. “ Nash- 
ville, Tennessee.” This re eg a note in Bull. Torr. Bot. Club 21: 304. 
1894, reporting the oce ‘owt of ‘“ Penstemon Small” and stating: 
Maid Bicknell has lately pata this. ashville, Ten- 
sseee He remarks that it grows penne on the ‘bluffs of the Cum- 
oir tiet River about that city.” cf ag in Herb. Columbia University 
at the New York Botanical Garden 
Rocky places, limestone ledges, in forest, Tennessee Basin and 
lower slopes of the Cumberland Mountains, central and eastern 
Tennessee, and northern Alabama. Ranges northward to Indiana 
and Illinois. 
Flowering from mid-May to mid-June, fruiting in July. Corolla 
externally violet-purple (redder than in P. pentstemon), deeper 
posteriorly, fainter to white on anterior side; within nearly white 
within throat, on lobes faintly violet-purple, and with a few ob- 
scurely violet-purple lines within throat on anterior side. Sterile 
filament with yellowish hairs. 
Pennell (Alabama)—9772. 
6. Penstemon smallii Heller. ae oo aca 
Penste li Heller, Bull. Torr. Bot. Club 21: “< 
by the writer on Blowing Rock Mountain, end "County, ui ia 
Cfarolina], J 1890, at an elevation a 4000 Ee ie 
wceran’ ae lo 
in » Tune 1891, th laity was yi agg Heit nntain, "Watauga Oe, olen ‘; 
at the New York Botanical Garden. eae in Herb. Academy of 
Natural Sciences of Philadelphia. 
