316 PRIMULACEAE. 



valves. Seeds few or many. (Androsakes, Greek name of a now unknown 

 sea plant. I 



1. A. septentrionalis L. Annual, erect, IVi to 3 in. high; leaves of the 

 radical fcufl lineal to lanceolate, rarely oblong, entire or obscurely toothed, 

 3 or 4 lines long; scapes 1 to 3, erect; inflorescence umbellate; involucral bracts 

 ovate or lanceolate, occasionally very broad at base; pedicels filiform, unequal, 

 Vi to 1 in. long; corolla not exceeding the calyx-lobes, 1 line long; calyx-lobes 

 mostly shorter than its tube, subulate-lanceolate. 



Berkeley Hills, Mt. Diablo, and far northward and eastward. 



Primula suffrutescens Gray. Sierra Primrose. General habit of Dode- 

 catheon; leaves thickly crowded on creeping stems, cuneate-spatulate, toothed 

 at apex; scape 2 to 4 in. long, bearing an umbel of several flowers; corolla red, 

 its tube surpassing the calyx, its limb % in. broad with spreading emarginate 

 or obcordate lobes. — Crevices of rocks, alpine in the Sierra Nevada. 



2. SAMOLUS L. Brookweed. 

 Glabrous perennial herbs with alternate leaves. Flowers small, white, 

 5-merous, in terminal racemes. Calyx adherent to the base of the ovary, cam- 

 panulate. Corolla nearly campanulate. Stamens 5, borne on the tube of the 

 corolla, their filaments short; a second series of stamens represented by 5 

 sterile filaments or staminodia inserted in the sinuses of the corolla and al- 

 ternating with the anther-bearing stamens. Capsule opening at the apex by 



5 valves. (Celtic name.) 



1. S. floribundus H.B.K. Water Pimpernel. Stem commonly solitary, 

 erect, simple or branching above into 2 or 3 racemes, or paniculate, 6 .to 10 in. 

 high; radical leaves rosette-like, round-obovate to oblong-spatulate, obtuse or 

 almost truncate, narrowed toward the base into a broad short petiole, 1% in. 

 long; cauline leaves similar, the uppermost varying to elliptic, 3 lines long or 

 more; pedicels slender, bractless, but bearing minute bractlets at their middle; 

 calyx-teeth short, broadly triangular; petals very small, white. — (S. valerandi 

 L. var. americanus Gray.) 



Brooks and marshes, rare within our limits; Suisun Marshes; Antioch; San 

 Bernardino. Far eastward across the continent. 



3. TRIENTALIS L. 



Low and glabrous perennials. Kootstocks tuberous, sometimes stoloniferous. 

 Stem simple, bearing scales or small leaves below r and a whorl of large leaves 

 above, from the center of which the filiform peduncles arise. Flowers commonly 



6 (5 or 7)- merous. Corolla rotate, deeply parted. Filaments long and filiform, 

 united at base into a very short ring. Style filiform. Capsule valves 5, revolute. 

 ( Latin trientalis, containing one-third of a foot, in allusion to the height of the 

 plants.) 



1. T. europaea L. var. latifolia Torr. Star-flower. Stems 4 to (i in. 

 high, from tubers % to nearly 1 in. long; leaves of the involucral whorl 5 or 6, 1 

 to 2 in. long, broadly obovate, abruptly acute, drawn down to n very short petiole; 

 I Mil uncles % to 2 in. long; corolla white or rose-red, about 4 lines broad, its 

 divisions abruptly acuminate and prolonged into a slender point ; calyx-lobes nar- 

 rowly linear-lanceolate, mucronate, exceeding the capsule. 



Const Range woods, mostly in the seaward and middle ranges from Monterey 

 northward. Also in the Sierra Nevada. May-June. 



4. GLAUX L. 

 Somewhat succulent perennial with opposite leaves, distinguished from all 



