178 PORTULACEiE. 



3. C. Sibirica, Liun. Sp. PI. i. 20i ? (1753) ; Sims, Bot. Mag. t. 2243 ; 

 Haw. Syn. 11 (1812), under Lunnia. Stems 1 — 1}4 ft. high : herbage 

 almost dark green, disposed to blacken iu drying : radical leaves lanceo- 

 late to rhombic-ovate, acute or acuminate, 1 — 2 in. long, long-petioled ; 

 cauline sessile, distinct, ovate or ovate-lanceolate, acute, not indistinctly 

 parallel-veined : raceme very lax, the fl. on long pedicels : petals 4 lines 

 long, rose-purple, retuse or emarginate at summit, at base narrowed to a 

 distinct claw. — In open swamps (never in "cool woods") from near Point 

 Bonita Light House in Marin Co., to Mendocino ; perhaps farther 

 northward in California, and also in Alaska. The derivation of original 

 C. Sibirica is somewhat obscure, but the present plant answers, better 

 than any other Californian species, to the accounts given of it. 



4. C. alsinoides, Sims, Bot. Mag. t. 1309 (1810). Root sometimes 

 (or always) annual : stems 4 — 10 in. high ; herbage light green, 

 unchanged in drying : radical leaves broadly ovate, abruptly acute, 

 veinless or somewhat feather-veined ; cauline pair sessile, distinct, very 

 broadly ovate : petals 2 lines long, white, united at base but not 

 unguiculate. — Common in moist woods, from Humboldt Co., and perhaps 

 Mendocino, northward. 



5. C. asarifolia, Bong. Veg. Sitch. 157 (1833) : C. Nevadensis, Wats. 

 Bot. Calif, i. 77 (1876) : C. cordifoiia, Wats. Proc. Am. Acad. xvii. 365 

 (1882). Stems clustered at summit of a slender creeijing rootstock, 4 — 10 

 in. high ; herbage rather succulent, dark-colored when dry : radical leaves 

 cordate-reniform or ovate, orbicular, or obovate, 1 in. broad, abruptly 

 narrowed to a long petiole ; cauline pair sessile, oblong-ovate : raceme 

 short, lax, braotless : petals 4 lines long, white, broadly spatulate, with 

 narrow claws. — A common species at the distant north, but found in the 

 Trinity Mountains, Humboldt Co., Marshall. 



++ -M- Annuals; racemes braciless except at base, recurved. 

 •M- Herbage light green, not glaucous. 



6. C. perfoliata, Doun, in Willd. Sp. ii. 1186 (1798). Stems 2—16 in. 

 high : radical leaves from deltoid-cordate, deltoid or rhomboidal to 

 rhombic-lanceolate, 1 — 2 in. long, on long petioles ; cauline pair joined 

 into a more or less orbicular perfoliate nearly plane or strongly concave 

 disk 3^—4 in. broad : raceme short-peduncled or sessile, with an ovate 

 acute or acuminate small foliaceous bract at base : petals 1 — 2 lines long, 

 white ; blade linear-oblong, retuse or emarginate ; claws united at base 

 and stamens epipetalous : fruiting calyx 2 lines long, twice the length of 

 the subglobose 3-seeded capsule : seed ?4 line long, round-oval, Ijlack 

 and shining but depressed-granular (under a strong lens) and with a 

 small. white strophiole. Var. (1) caniosa. Stout and low; the whole 

 herbage very succii lent: fruiting calyx I4 in. long: seed nearly orbicular. 



