montia. PORTURACACE.E. 95 



culate, small, dull black. In wet places, Columbia river valley from The 

 Dalles westward. 



M. linearis Greene Fl. Francis. 181. Claytonia linearis Dough Stems 

 erect or spreading 2-6 inches long, branching from the base : leaves lin- 

 ear, sessile by a clasping base, 1-3 inches long, flowers in lax terminal 

 often secund racemes : stamens 3, (rarely 2 or 5) : sepals broadly elliptical, 

 2 lines long, often partly scarious and colored; petals a little longer: seeds 

 black and lustrous, a line broad, the largest in the genus, flat and sharply 

 margined. In moist or wet places, Vancouver Island to northern 

 California. 



*+ ** Stamens 5, seeds closely striate and transversely lineolate. 



M. diffusa Greene 1. c. Annual, stems procumbent diffusely branched: 

 2 inches to a span long: leaves broadly ovate or deltoid, abruptly attenuate 

 into a petiole, %-\ inch broad: racemes very numerous, terminal and 

 lateral, subcorymbose ; pedicels slender, at length recurved, the lowest 

 one and often several of the upper ones bracteate : petals emarginate, 2 

 lines long, a little longer than the calyx. In forests and shady or rocky 

 places near the mouth of the Willamette river to northern California. 



* * Leafy-stemmed perennials, stoloniferous or bulbiferous ; ra- 

 cemes terminal and axillary, not involucrate-bracted : petals 5, 

 scarcely unequal: stamens 5. 



+- Stems filiform : leaves alternate ; racemes terminal. 

 M. parvifolia Greene 1. c. Stems filiform 2-10 inches long: leaves 

 fleshy, lower clustered, oblanceolate or spatulate, 5-18 lines long; cauline 

 much smaller, usually with leafy bulblets in their axiles : racemes ter- 

 minal few-flowered : some or all of the pedicels subtended by scarious 

 bracts : sepals broadly ovate obtuse, a line long : petals oblanceolate, emar- 

 ginate About springs and wet places, California to Alaske 



■*- +- Leaves opposite : racemes axillary. 

 M. Chamissonis Greene 1. c. 180. Stems weak and slender, erect or 

 decumbent, a foot or less high, stoloniferous and rooting at the joints : 

 leaves oblanceolate or spatulate %-l}4. inches long; often with bulblets in 

 their axiles: racemes few -flowered with a scarious bract at base; flowers 

 on slender pedicels: sepals orbicular l}o lines wide: petals white, 3 or 4 

 lines loug. In wet places, Alaska to California, east to the Rocky 

 Mountains. 



M. Hallil Greene 1. c. A span high, destitute of stolons or bulblets: 

 leaves only 2 or 3 pairs: pedicels in fruit ascending : calyx barely a line 

 long: seeds muriculate. Wet ground, Willamette valley. 



* * * Leaves all radical : stems scapiform: racemes involucrate, 

 petals and stamens 5 each. 



■*- Involucral bracts more or less united into a disk, other and 

 smaller bracts above them : annuals, apparently confluent in a series. 

 M. perfoliata Howell 1. c. 38. Claytonia perfoliata Donn Willd. Sp. ii, 

 1186. Scapose stems 6-12 inches high : leaves long petioled, ovate to del- 

 toid usually acute 3^-3 inches broad : light green : involucral bracts com- 

 pletely joined together forming a perfoliate shallow-funnelform disk: 

 flowers in short or long peduncled interrupted elongated racemes : sepals 

 ovate 1-1% hues long; petals a half longer: seeds rather small, black and 

 lustrous, lenticular. Common in shady moist places, Vancouver Island 

 to California and the Rocky Mountains, also Mexico and Chile. 



M. parviflora Howell 1. c. Claytonia parvijiora Dough Leaves light 

 green, spatulate to filiform, including the petiole 2-6 inches long: scapose 

 stems 2-8 inches long, involucral bracts joined together on one or both 

 sides into a perfoliate or clasping or shallow disk: flowers in sessile or 

 short-pedunckd racemes; sepals ovate, a line long: petals but little longer: 



