Holm, The genus Carex in North -West America. 9 



in Alaska at Port Clarence, Sitka and on St. Paul Island. C. 

 Deweyana and Bolanderl have both been found at several stations 

 in Washington, but are otherwise rare within the region. 



In passing to the Astrostachyae C. stellulata shows a very wide 

 distribution often accompanied by C. Jaevicnhnis. C, gijnocrates, 

 which is not rare in the northern United States and Canada, has 

 only been found in Yukon, British Columbia and on Attu and 

 PopolT Islands, but not on the Alaskan mainland. With the ex- 

 ception of C. Hoodii the other members of the AcantJiophorae are 

 very unequally distributed in our region. C. stipata, a species 

 characteristic of the eastern States, reaches our region south ot 

 Alaska and Yukon; it has been collected at various stations in 

 Washington, but seems to be rare in Idaho and Oregon. The 

 rare C. si/chnocephala occurs in British Columbia, but extends from 

 there to New York. 



Only a few species of the Xerochlaenae are common in our 

 region: C. marcida and Douglasii, but they have not been found 

 in Alaska or in Yukon ; they both are western species and extend 

 southward to Colorado and California. C. SartivelUi not uncommon 

 in the eastern and central States, has been reported from Chilkat. 

 The very singular C. macrocepluda inhabits the sandy beaches 

 along the coast of Alaska, Washington and Oregon. Aniong the 

 Phaenocarpae C. teretiuscula is the only member represented in 

 our region, but it shows an exceedingly wide distribution, and 

 is often accompanied by the variety ramosa. 



The grex of Ylgneae, which is the most amply represented 

 in our region, is that of • the Äthr o stach ijae. We meet here with 

 the eastern C. Crawfordii and scoparia, which do not, however, 

 reach Alaska or Yukon. But characteristic of this northwestern 

 Flora are C. athrostachya, festlva with several varieties, petasata, 

 siccata, pratensis and Liddonii, while midtimoda, aenea and Bon- 

 plandii are less frequent. Of these C. festiva appears to be the 

 most common. C. petasata is very frequent in the mountains of 

 Washington, Oregon and Idaho, but is rare in Alaska having only 

 been found on Egg island and near Hidden Glacier in Russell 

 Fjord. The Pterocarpae are, on the other hand, poorly represented 

 being mostly eastern species; however C. stramlnea has been 

 found at a few stations with some of the varieties but they are 

 very rare in this region. The rare C straminiformis has been 

 collected in Washington and Oregon, though only at a very few 

 stations; it occurs, also, in California and Colorado. — A most 

 scattered distribution is exhibited by C. capitata, which crosses 

 the northern parts of the continent, but having so far only been 

 detected at a very few stations in Alaska (Cape Nome), Yukon, 

 the Hudson Bay Region and New Hampshire. The Cephalostachyae 

 are, also, very rare, but it is interesting to notice among these 

 C. foetida from Oregon (Mt. Hood) and Washington (Mt. Paddo), 

 where Mr. Suksdorf collected it in wet, sandy soil at an elevation 

 of about 2,200 Met., and on steep, stony slopes at same elevation. 

 Another very interesting species is C. Oai/ana, which Mr. Suks- 

 dorf has sent the writer from Falcon Valley, growing in wet 

 meadows and in water. C. steyiophylla has been found in the 



