FLORA OF THE CASCADES 
159 
Boripa ohtusa (Nutt.) Britt.' One specimen found in damp 
ground near Squaw creek. 
Thelypodium laciniatum (Nutt.) Endl. Dry stony ground at 
the foot of a cliff, Sisters. 
Thelypodium sp. Found plentifully in one locality near the 
Des Chutes. A very small species for the genus. 
Bibes inerme Ryd. (?) Plentiful in low thickets along Squaw 
Greek. Not fruiting. 
Bibes irriguum Dougl. ( ?) Plentiful along the Des Chutes. 
Scarcely fruiting. 
Bibes cereum Dougl. Frequent in dry ground, Sisters and 
Bend. 
Philadelphus lewisii Pursh. Frequently in moderately dry 
ground, Sisters. 
Spiraea douglasii Hook. In several localities in damp meadows, 
Sisters. This species is rare east of the Cascades. We 
should expect here S. menziesii Hook. 
Bubus macropetalus Dougl. Common in damp ground along 
Squaw creek. 
Bosa pisocarpa Cray. Common in somewhat dry grounds, Sis- 
ters. 
Potentilla biemiis Greene. Frequent in dry grounds, Sisters. 
Potentilla fasUgiata Nutt. Rather common in dry ground, Sis- 
ters and Bend. 
Eorkelia fusca Lindl. First noted in the yellow pine forest sev- 
eral miles to the west of Sisters, where over large areas it 
was almost the only herbaceous plant occurring in any 
abundance. Scarce at Sisters. 
Fragaria crinita Ryd. In moderately dry ground, Sisters; 
rather scarce. F. platypetala Ryd. was found in the Cas- 
cades, Canadian zone, but it seems to be mainly an Arid 
Transition form, and is the one we should expect here. The 
species of Fragaria in Oregon are not well understood. 
Argentina anserina concolor Ryd. Plentiful in wet meadows, 
Sisters, also along the Des Chutes. 
Comarum palustre L. In a swampy meadow. Sisters. 
Drymocallis convallaria Ryd. Common in rather dry ground. 
Sisters. 
Kunzia trident ata (Pursh.) Spreng. Common on dry hills. Sis- 
ters and Bend. 
