20 Rhodora [JANUARY 
Orizaba. This is the plant which was described in 1856 by Meisner! 
as Rumex mexicanus, a name which may seem doubtfully applicable 
to a plant which extends into the northern Rocky Mountains and 
eastward across Canada to the Gulf of St. Lawrence. But this range 
is in reality a very natural one and it is followed by more than sixty 
of our best marked northeastern species, such as Ranunculus Cymba- 
laria, Rumex persicarioides, Lonicera involucrata, Limosella aquatica, 
Veronica americana, &c., which, crossing the boreal distriet of. North 
America, extend southward along the Rocky Mountain System to 
northern and central Mexico; and Chimaphila umbellata, Pyrola 
secunda, Cystopteris fragilis, Asplenium Trichomanes, &c., which 
reach the high summits of Mt. Orizaba or of the Volcan de Fuego 
in Guatemala, where the last named species is found above 3350 
meters (11,000 feet). 
Gray HERBARIUM. 
SCIRPUS HUDSONIANUS IN RHODE IsLAND.— On June 22d, while 
in company with Prof. J. Franklin Collins the writer discovered Scirpus 
hudsonianus (Michx.) Fernald (Eriophorum alpinum L.), in a cold 
bog not far from Diamond Hill in the town of Cumberland. At only 
one other station known to the writer has this plant been discovered 
so far south. In Внорока [1900] Mr. Roland Harper refers to it 
as occurring at Willington, Connecticut, which is at about the same 
latitude as the Rhode Island station reported above.— ERNEST SHAW 
REYNOLDS, Providence, Rhode Island. 
[Scirpus hudsonianus occurs at a number of stations besides Willington in 
Tolland County, Connecticut. One of these, Storrs, where the plant was re- 
cently found by Professor A. F. Blakeslee, is about twenty miles further 
south than the Diamond Hill station.—- Eds.] 
1 DC, Prodr. xiv. 45 (1856). 
Vol. 9, no. 108, including pages 221 to 252 and title-page oj volume, was issued 
30 December, 1907. 
