OF NORTH AMERICA. 
95 
980. Pycnanthes saxatilis R. stem ramose 
tomentose, angles obtuse, leaves glaucous sub- 
petioiate ovate acuminate remotely serrate, 
hardly pubescent punctate reticulate on both 
sides; heads terminal sessile, bracts and calix 
lanceolate mutic canescent tomentose— in the 
Alleghany Mts. near the II. Susquehannah 
among stones and rocks, 1 or 2 feet high, 
branches patent, leaves ultra uncial, capitules 
multiflore, stamens not exerted.— A var. cunt- 
loides has stem smaller, leaves subsessile smal- 
ler sometimes subentire. Subg. Br achy stem on. 
981. Pycnanthes parvifolia R. smooth, 
stem branched acutely 4gone, leaves small sub- 
sessile ovatoblong entire, ending by an obtuse 
callose point ; heads terminal sessile lax dicho- 
tome, bracts lanceolate nervose, the nerve pro- 
truding in a long stiff fulvous bristle, calix brist- 
ly— a very distinct sp. found by Leconte in Flo- 
rida and Georgia, anonymous in Coll. herb, pe- 
dal, while leaves 4 to 6 lines long, bristles of 
bracts as long as them formed by the nerve ex- 
tending out. Very different from P. aristata, 
stamens not exerted. Perhaps a peculiar sub- 
genus Xetalix R. with all aristate sp. here the 
calix is equal else it would be a Tally a, lower 
lip of corolla equaly trilobe, lobes short rounded 
upper entire ? as in Tullya. 
982. Pycnanthes ciliata R. stem branched 
pilose 4gone, leaves subsessile glaucous lanceo- 
late elongate acute at both ends subentire, 
smooth, margin and nerves ciliate, heads termi- 
nal sessile canescent pilose lax, bracts and calix 
subulate aristate bristles ciliate — in N. Jersey 
pine barrens and Maryland, noticed since 1802, 
deemed P. aristata by some, nearer to P. pi- 
losa , having both they are very different from 
