FLORA OF THE CASCADES 
157 
J uncus orthophyllus Cov. Frequent in moist meadows. Sisters. 
Juncus regelii Bueh.. With the preceding. 
J uncus badius Suks. With the preceding; not common. 
Juncus ensifolius major Hook. Infrequent; in swampy mead- 
ows, Sistei's. 
Hookera hyacinthina (Lindl.) Kuntze. In moist meadows, Sis- 
ters; apparently not very plentiful. 
Calochortus macrocarpus Dough Found sparingly in very dry 
ground, Sisters. 
Iris missouriensis Nutt. Frequent in moist meadows, Sisters, 
and along the Des Chutes. 
SisyriTickimn helium Wats. Plentiful in damp meadows, Sisters. 
Our material is somewhat doubtfully referred here. The 
species of this genus in Oregon are not very well understood. 
Sisyrinchium idahoense Bick. Common in moist meadows, Sis- 
ters. 
Ibidium romanzoffiamim (Cham.) House. Infrequent; in moist 
meadows, Sisters. 
Salix sp. In wet meadows and along the margin of Squaw 
creek. 
Salix sp. With the preceding. These two willows form large 
clumps and extensive close thickets. They were not in a 
condition to be determined with certainty. 
Populus tremuloides Michx. Plentiful in rather dry ground 
along Squaw creek. This is quite different from the eastern 
form, and perhaps distinct. 
Betula micropkylla Bunge. Common along the Des Chutes. 
Bet'ula sp. Common along Squaw creek. The species of Betula 
in Oregon are rather confused. Two forms seem to occur 
at Sisters, but they are possibly only extreme variations 
of the same species. 
Almis tenuifolia Nutt. Very plentiful along Squaw creek. An 
alder also occurs in abundance on the Des Chutes at Bend, 
but no specimens were collected. It is perhaps A. rhombi- 
folia Nutt. 
Rumex persicarioides L. In wet ground near the Des Chutes. 
Polygonum erectum L. A few specimens in rather dry ground, 
Sisters. 
Polygonum amphibium L. In a swampy meadow, Sisters. 
Priogonum proUferum T. & Gr. In very dry ground, Sisters and 
Bend ; more common at the latter place. 
