April I, 1916 37V 



CoRAij.ORiirzA STRIATA Undl. 4. Striped coral root. Con- 

 iferous woods, Mt. Tabor, Mt. Scott, etc. May, June; dark pur- 

 ple with 3 deeper purple lines. 



SALICACEAE Lindl. Willow Family. 

 Saux [Tourn.] L. Willow. 



Saijx lasiandra Beuth. Western black willow. Stream 

 banks, Ross island. March, April. 



Saux fluviatilis Nutt. Sand bar willow. Not uncoin- 

 nion on tnoist ground, Ross island, Swan island, below St. Johns, 

 west shore of Sauvie's island, etc. A small tree or frequently a 

 shrub. May, June. 



Saux sessilifoua Nutt. Western silver willow. Sand 

 bars and stream banks, west shore of Willamette slough near its 

 mouth. Small tree or often a s'.irub. May, June. 



Salix SCOULERIANA Barratt. Western pussy willow. Hill- 

 sides and open woods, Macleay Park, L. & C. fair grounds, Cor- 

 nell road, etc. One of the earliest blooming of our willow.s. The 

 aments appear long before the leaves, and are usually in evi- 

 dence about the first week in January. January to March. 



X Salix Scouleriana brachystachys Sargent. Up- 

 land willow. Common on hillsides and upland slopes, Barnes 

 road, Cornell road, Portland Heights, etc. The strongest of our 

 local willows. January to March. 



X Salix Piperi Bebb. Piper's willow. Moist slopes and 

 stream banks, Macleay Park, Milwaukie, etc. In Oregon this 

 willow has for a long time passed as .S. lasiolepis (white willow), 

 a larger species not yet found north of the California line. March, 

 April. 



Salix sitchensis Sanson. Silky willow. Moist ground 

 and stream banks, St. Helens road, St. Johns, Willamette slough, 

 etc. April, May. 



POPULUS [Tourn.] L. Cottonwood; poplar. 



PoPULUS trichocarpa T. & G. Black cottonwood. Com- 

 mon on east bank of Willamette river between Portland and the 

 golf links; moist ground. Mock's bottom. Swan island, Rois 

 island, etc. March, April. 



