Stem suffruticose; base flexuous, smooth, cinnamon brown, numerously branched above; branches green, slender, erect, subsimple, stellate pubescent from minute scabrous elevations, and also simply short pubescent; plant sub-triangular throughout. Leaves erect, sub-appressed, small, linear, obtuse, slightly narrowed at the base into a very short petiole, alternate. Flowers small, yellow, in sub-terminal racemoid panicles; pedicels as long, or twice the length of the flowers; calyx bi-bracteate (appendaged?); bracts minute (about half the length of the sepals), linear, foliaceous (rudimentary sepals); proper sepals three, nerveless, ovate, acute (or sub-acute), imbricated margins glabrous, as long as the capsule. Petals obovate, sub-cuneate, scarcely twice the length of the sepals; stamens ten (yellow), shorter than the calyx; styles one, short; stigmas three, or united the entire length; capsule spheroid obtuse, sub-triangular, three-valved, each valve two-seeded, false dissepiment incomplete. A small shrubby species, six inches to [Transcriber’s Note: the second measurement was omitted] in height, found by Mr. Bolander on the White Hills back of Oakland. P.S.—From the ripe fruit since obtained, the capsule is more ovate; separating invariably into three valves, only two to three ovules attaining to maturity; the seeds black, sub-compressed ovate, plano-convex or with two plain sides, the third convex, surface rough. _L. decurrens_ Kellogg. [FIG. 11.] [Illustration: FIG. 11.] Stem annual, smooth, somewhat erect, sparingly branched, four to six inches of their summits racemed (the simple branches but slightly diverging from a vertical direction) much decurrent, from one to two feet in height. Leaves alternate, narrowly lanceolate, one-nerved, sharply acuminate (the lower-most leaves unknown). Flowers secund, large purplish blue, unilateral on long much decurrent pedicels, expansion of the pedicel above the articulation at the base of the calyx quadrangular; sepals five, ovate-oblong acute, margins scarious, seven-nerved, rather more than half the length of the capsule. Petals obovate, cuneate, claw short emarginate or crenate at the apex, marked by about five deeper blue veins. Styles five, free to the base, stigmas capitate. Stamens five, short; anthers oblong, white. Capsule ovate, very abruptly short pointed, completely ten-celled. Seeds oblong, hilum slightly narrowed. Found by Mrs. Thayer on the head waters of Feather River. SILENE L. _S. Dorrii_ Kellogg. [FIG. 12.] [Illustration: FIG. 12.]