58 ESS A YS. 



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. 1 Here we again found Vaccinium erythrocar- 

 pum, as already mentioned ; and obtained beautiful flowering 

 specimens of Menzlesia 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 (nunc emarginatis aut leviter obcordatis) exun- 

 guiculatis calycem sequantibus; floribus mox erectis. 



(3 Macreanum, articulo styli inferiore sursum glabrescente. G. Macrea- 

 num, M. A. Curtis, in litt. 



Crescit in Canada ex Michaux : an recte ? Var. j3 in umbrosis ad 

 mantes Grandfather et Roan, Carolina^ 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 nunc 

 palmatim 3-secta, nunc interrupte pinnatisecta, hand 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. (3 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. 



