FLORA OF THE CASCADES 
155 
laya fields until we left Bend. Brief notes regarding distribu- 
tion, habit, relative abundance, etc., are added. Specimens of 
all but .a. few of the commonest were preserved. 
Juniperus occidentalis Hook. First noted a little to the west- 
ward of Sisters, and increasing steadily in abundance to 
the Des Chutes (Bend). 
Finns monticola Bougl. Plentiful along the eastem edge' of 
the lava fields, but thins out to the eastward add soon dis- 
appears. 
Finns ponderosa Dough The most abundant and characteristic 
trfee of the Arid Transition. First appeared near the edge 
of the lava fields (elevation about 1300 m.) add continued 
abuddant to the Des Chutes and eastward. 
Finns contorta Dough Common along the eastern margin of the 
lava fields, but thinning out and soon disappearing east- 
ward. A single specimen found along Squaw creek at 
Sisters. 
Abies nobilis Lindh With the preceding and about equally 
common in our area. A specimen of this also was found at 
Sisters. ‘ , 
Fsendotsnga mncronata (Baf.) Sudw. Abundant for a short 
distance to the eastward of the lava fields, then fading out 
rather abruptly. A few specimens along Squaw creek. 
Tsnga mertensiana (Bong.) Carr. Abundant along the eastern 
margin of the lava, but soon disappearing eastward. 
Fotamog.eton perfoliatns richardsonii Benn. Abundant in Des 
Chutes river, covering the bottom over large areas. 
Fotamogeton pnsillns L. Common in pools along Squaw creek, 
and in the Des Chutes. 
Alisma plantago-aqnatica L. Frequent in muddy ground along 
the Des Chutes. 
Anacharis canadensis (Mich.) Planch. Abundant in the Des 
Chutes. 
Oryzopsis hymenoides (E. & S.) Pick. Apparently not very 
plentiful, in high dry ground, Bend. 
Alopecnrns genicnlatns fnlvus (Smith) Sender. Plentiful in 
moist meadows. Sisters. 
Fhlenm pratense L. Abundant in damp meadows. Sisters. 
Sporobolns depanperatns (Torr.) Se:rtb. In dry soil,. Sisters. 
Only one or two specimens. 
