14 
Holm, The genus Carex in North-West America. 
on Arakamtscetschen Islands in Eastern Asia. C. amplifolia, very 
rare in California, has been found at several stations in Washington, 
in swamps and along mountain-streams, but is less frequent in 
Idaho and Oregon. C. flava and Oecleri are the only species of 
Spirostacliyae that have, so far, been observed in our region, but 
it is quite interesting to notice that the former is accompanied by 
the variety lepidocarpa. C. Oederi is the most frequent of these, 
at least in Washington, and seems altogether to be more widely 
distributed in the Western States, than in the eastern. In passing 
to the Echinostadiyae we meet here with C. microglochm recently 
discovered in Alaska at Port Clarence, besides that it has, also, 
been found in British Columbia; we might state at the same time 
that the species has, also, been observed in Colorado and in the 
Hudson Bay region, but nowhere eise on this continent, although 
it has been collected on the west-coast of Greenland. C. paiiciflora 
is, also, rare in our region, known only from Yes Bay, Virgin Bay, 
Sitka and Vancouver island, besides a few stations in Washington; 
it occurs, however, throughout Canada and the northern United 
States. None of the other members of the grex have been found 
in Alaska, but in some of the other Western States, though only 
at a very few stations. 
The Physocarpae, on the other hand, are exceedingly well 
represented’ in our region. and especially on the Alaskan coast. 
C. ambusta has been found at Sitka, Kukak Bay and on St. Lawrence 
island; C. rotundata occurs near Nome City^ 0. utriculata abounds 
throughout the region, and C. physocarpa is very common in Alaska 
and British Columbia. C. ph'ßochlaena, a very characteristic species, 
is only known from Yukon; the high northern (I pulla has been 
collected at Norton and Kotzebue Sounds, in the Chilkat region and 
Yukon, while C. mwata seems to be frequent in Washington, Idaho 
and Oregon, but has not, so far, been observed either in Yukon 
or in Alaska. The very rare Ü. compacta has been recorded from 
Alaska: Cape Nome, Norton Sound, Port Clarence and St. Michael 
island from where it extends eastward to the Hudson Bay Region. 
The monostachyous C. Breweri of the Physoceplialae has been 
found in the mountains of Washington and Oregon, on alpine 
slopes near the snow; the species occurs, also, in California. The 
RhynchopJwrae are in our region only represented by C. monile^ 
which seems to be very rare, especially the typical plant. 
B. Types characteristic of North-West America. 
Carices brachystachyae. 
Of these C. Boncmzaensis is the only type of this region; it 
is an ally of G. canescens but quite distinct from this by the 
shining brown color of the scales which are much shorter than the 
perigynium; the latter is piano-convex, brOadly elliptical, several- 
nerved on both faces and the minute beak is slit on the convex 
face. C. arcta is an American species, but is not confined to the 
northwestern parts of the continent. In regard to the systematic 
Position of this species within the grex, it may be placed between 
C. canescens and vitilis. Judging from the ample representation 
