THE MOUNTAIN REGION OF CLEAR LAKE. 15 
the smaller Streptanthi. Its place in the genus will be 
near S. tortuosus, Kellogg. The leaves usually bear near 
their apex 2 or 3 callous-tipped denticulations. The species 
is named in allusion to the resemblance which the knotted 
pods bear to those of Hesperis. 
Lepidium intermedium, Gray, Pl. Wr. ii, 15. Scott Valley. 
Argemone munita, Dur. & Hilg. Pac. R. Rep. vol. v, t. 1. 
Sand-banks of the Eel River. 
Cornus glabrata, Benth. Bot. Sulph. 18. Fork of Middle 
Creek, near foot of Elk Mountain grade. 
Cephalanthus occidentalis, Linn. Sp. PI. 1,95. Blue Lakes. 
Lessingia adenophora, Greene, Bull. Cal. Acad. 4-190: 
Plentiful on the mountains near Knoxville. 
Arctostaphylos elegans. A shrub 10 or 12 feet high: 
leaves bright green, glabrous, obovate and elliptic, acute or 
obtuse, 1 to 14 inches long, both surfaces somewhat rugulose, 
petioles 3 lines long: inflorescence glabrous, the rachis 
dilated upward, pedicels 3 to 5 lines long, bracts deltoid-ovate 
1 to 1} lines long, the upper portion jointed and deciduous: 
flowers unknown; fruit depressed-globose, more or less 
umbilicate, 4 lines high, 6 lines broad, of variously angular 
rather than orbicular outline viewed from above, 2 or 3 of 
the 5 or 7 drupelets consolidated. 
Covering the undulating obsidian slopes south of Uncle 
Sam Mountain, July 29, 1892. N early all my specimens 
show leaves with dark purple veins and reticulations. 
Fraxinus Oregana, Nutt. Sylva, iii, 59. t.99. This ash, 
with alder and laurel, fringing water-courses in Scott Valley. 
Handsome trees, 70 to 90 feet high. 
Asclepias eriocarpa, Benth. Pl. Hartw. 323. Putah Canon 
and northward in the hills for forty miles. Not previously 
known north of Monterey. 
Gilia capillaris, Kellogg, Proc. Cal. Acad. v, 46. Oredited 
hitherto only to the Sierra Nevada and northward, 
Linanthus filipes, (Benth.) Greene, Pitt. ii, 255. South 
fork of the Eel River. 
