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Ayre f SAOTEE b ge oy Sh 2 ae 
ff NATURAL SCIENCES OF PHILADELPHIA 
Bitiah writs 
Enumeration of the Species of PLANTS collected by Dr. C.C. Parry, and Messrs. 
Hall ani J.P. Harbour, during the Summer and Autumn of 1862, on and 
near the Rocky Mountains, in Colorado Territory, lat. 39°—41°. 
BY ASA GRAY. 
An senna account by Dr. Parry of his first explorations of the Rocky 
Col 
Mountains in Colorado Territory, made in the summer of 1861, was published 
in th ic ournal of Science and Arts, 62° This was - 
lowed by an enumeration of the plants in the choice botanical collection which 
he made, as determined by myself, Dr. Engelm others. import- 
ance of this pioneer exploration, both in a physico-geographical and a botani- 
cal point of view, T. ¥ and extend it the following 
year, ertake more full xact 0 tions upon the configuration of 
the district, and the altitude of the loftier peaks, and to a larger 
collection. In the latter view, Dr. Parry wasjoi y two zealous and 
oined b 
enterprisin; cal companions, Messrs. Hall and Harbour, of Illinois, who 
devoted their entire energies to the collection of plants. The botanical col- 
lection, accordingly, through these conjoint labors and explorations, is full, 
excellent, and of great interest. Along with a fair p new 
to science or new to the region, it brings to light and makes accessible to bot- 
generally, y late Mr. Nuttall’s discoveries st thirty 
lf a century ago, authentic specimens of which hardly exist, except in the 
herbarium of the Academy, in that of Mr. Durand, at Philadel Iphia, and 
in i t Kew. 
is regar 
name and scientific biltoer of Nuttall with Phi elie ees and es po gh ith 
the rsa! of Natural Mngt publisher of many of his ~e 
writings, and the proprietor of his principal botanical collections,—that I have 
deemed it an proper to offer the following enumeration for publication 
in the Aca s Proceedings. 
This en a find is but a ip soa eel of the collection in hand. It oe 
have “aba mes a extended by descriptions, remarks, and references ; and som 
of the determinations may proba’ hy have to be reconsidered. But I deem it 
‘best for our science to publish it at once, as it is, that 3 may be early in the 
hands of botanists along with the distributed sets of specimens, thus en- 
ess c 
the prompt co rrection - arqmlahts, omissions, or mistakes on my part, 
ot hick there may be not 
Bee nenimahes, that the general collection, aaiaiane oe by the — 
conjointly, is distributed under the tickets of Messrs. Ha 
bour,— —upon ‘whom indeed the labor of the collection imm: ee 
volved,—and is numbered quite independently of das odie ’s sr nse oft 1 S61, 
g s' a P 
liection made by Dr. Parry es the summer, at stations visited by him- 
i tion, bears Dr 
, which serves as @ basis for the Prone tin list. This accounts 
ents, and 
