OXALIDACEAE. (Oxalis Family.)
Oxalis oregana Nuttall.
Common in rich, moist woods up to 3,000 feet altitude.
Oxalis trilliifolia Hooker.
With the preceding, which it resembles. It may be distinguished by its scapes bearing several flowers, instead of only one, and by its narrow pods.
LEGUMINOSAE. (Pea Family.)
Lupinus subalpinus Piper & Robinson.
The common lupine of the grassy slopes, 4,000 to 6,000 feet altitude.
Lupinus volcanicus Greene.
A small species, with hairy pubescence, growing above the limit of the preceding and below that of the following.
Lupinus lyallii Watson.
A lovely little plant with silvery foliage. Abundant in the pumice fields at 7,000 to 8,000 feet altitude.
Lathyrus pauciflorus Fernald.
A wild pea with purple flowers collected by Allen in the Goat Mountains.
Lathyrus nevadensis Watson.
Very like the preceding but with white flowers. Collected by Allen, No. 297, on mountains near the upper valley of the Nisqually.
Oxytropis cusickii Greenman.
Goat Mountains, Allen, No. 245.