58 ESSAYS. 
time he ascended this mountain. It does not, however, al- 
together accord with, Michaux’s description, nor does that 
author notice the size of the heads, which in our plant are 
among the largest of the genus. Specimens in flower were 
procured by Mr. Curtis, who visited this mountain at a more 
favorable season. With the latter we found a Geum, which 
Mr. Curtis had formerly observed on the Roan Mountain 
(where we afterwards met with it in great abundance), and re- 
ferred, I think correctly, to G’. geniculatum, Michx., although 
that species is said to have been collected in Canada. 
The lower portion of the style is less hairy in our specimens 
than in Michaux’s plant, a difference which, if constant, 
is not perhaps of specific importance. In the subjoined 
character I have supplied an inadvertent omission in the 
“ Flora of North America,” where the sessile head of carpels, 
which so readily distinguishes this species from G. rivale, is 
not mentioned.! Here we again found Vaccinium erythrocar- 
pum, as already mentioned ; and obtained beautiful flowering 
specimens of Menziesia globularis, a straggling shrub which 
in this place attains the height of five or six feet. 
1 Geum geniculatum (Michx.): capitulo carpellorum sessili, articulo styli 
superiore plumoso inferiorem pubescentem excedente, achenio hirsuto 
petalis cuneato-obovatis (nune emarginatis aut leviter obcordatis) exun- 
guiculatis calyeem eequantibus; floribus mox erectis. 
B Macreanum, articulo styli inferiore sursum glabrescente. G@.Macrea- 
num, M. A. Curtis, in litt. 
Crescit in Canada ex Michaux: an recte? Var. 8 in umbrosis ad 
montes Grandfather et Roan, Caroline Septentrionalis, alt. 5500-6000 
pedes, ubi imprimis detexit cl. Curtis. Julio floret. Caulis 2-3-pedalis, 
gracilis, foliosus, inferne pilis rigidiusculis retrorsis, superne pilis mollibus 
patentibus crebrioribus villosus. Folia membranacea ; radicalia nune 
palmatim 3-secta, nune interrupte pinnatisecta, haud rariusque indivisa 
vel sublobata in eodem stirpe ; caulinia trisecta trilobatave, lobis acutis ; 
superiora sessilia. Flores minores et numerosiores quam in G. rivali ; 
petala albida, venis purpurascentibus. Styli pars inferior portione plu- 
mosa primum multo, postremum modice brevior, in exemplo Michx. 
manifeste, at juxta apicem parce piloso-pubescens ; in var. 6 superne 
glabrata. 
Should the Carolina plant hereafter prove to be a distinct species, it 
will of course retain the name proposed by Mr. Curtis, in honor of his 
friend and former associate in botanical labors, Dr. James F. McRee of 
Wilmington, North Carolina, 
