94 PORTULACACEAE. 



Claytonia lanceolata Pursh. Stems simple, 8-15 cm. tall, erect, from a 

 globose tuber 1-4 cm. in diameter; radical leaves few or wanting, lanceolate, 

 acute, long-petioled; cauline a single pair, sessile, lanceolate or ovate-lanceolate, 

 acute, 2-5 cm. long; flowers 3-10 in a short raceme which scarcely exceeds the 

 cauline leaves; pedicels slender; petals pink, oblong or ovate, eraarginate, 

 8-10 mm. long; seeds black, shiny, 2 mm. broad. Kamiack Butte. 



Claytonia chamissoi Ledeb. Perennial, with slender elongate stolons, 

 which finally bear tubers at the apex; flower stems mostly simple, 10-30 cm. 

 tall; leaves 3-7 pairs, broadly spatulate, 2-4 cm. long; raceme few-flowered; 

 pedicels slender; petals pale or white, 6-8 mm. long; stamens 5; capsule equal- 

 ling the calyx; seeds kidney-shaped, minutely roughened. Moist copses, 

 uncommon. 



Claytonia linearis Dougl. Annual, branched below, 5-15 cm. tall; leaves 

 linear, succulent, all alternate, 2-5 cm. long, scarious-margined at base; 

 raceme 4-10-flowered, one-sided, the pedicels curving downward; sepals 4 mm. 

 long; capsule shorter than the sepals; seeds shiny, 2 mm. broad. Frequent and 

 abundant. 



Claytonia dichotoma Nutt. Very similar to C. linearis but smaller in every 

 way, 2-8 cm. tall; calyx 2 mm. long; petals scarcely exceeding the calyxr 

 seeds 1 mm. broad, dull. Common but inconspicuous. 



Claytonia perfoliata Donn. Annual, branched from the base, 10-50 cm. 

 high, erect; basal leaves long-petioled, the blades usually rhomboid-ovate, 

 but varying to spatulate-linear; cauline leaves united, forming an orbicular 

 or somewhat angled disk, 3-5 cm. broad; racemes rather loose, one-sided; 

 calyx 4 mm. long; petals smaller, white; seeds smooth, shiny, lenticular, 2 mm. 

 broad. In moist woods, Blue Mountains; common -west of the Cascade 

 Mountains. 



Claytonia parviflora Dougl. Annual, branched from the base; stems usually 

 15-30 cm. high, erect; radical leaves long-petioled, linear, lanceolate or 

 spatulate; cauline pair united into an orbicular somewhat angled disk, 1^ cm. 

 in diameter; raceme usually loose, interrupted, somewhat one-sided; calyx 

 2 mm. long; petals pink or white, about twice as long; seeds shiny, usually 

 smooth, 1 mm. broad. In moist copses. 



Claytonia parviflora depressa Gray. Small and depressed, more fleshy; 

 whole plant commonly reddish; cauline leaves sometimes nearly separate; 

 radical leaves broadly ovate. Very common. 



Claytonia asarifolia Bong. Perennial, with short rootstocks, somewhat 

 tufted; stems 15-30 cm. tall, bearing a single pair of leaves below the inflores- 

 cence; leaves rather fleshy, broadly ovate, somewhat cordate, obtuse, 2-3 cm. 

 long, the cauline sessile, the radical slender-petioled ; raceme peduncled, 3-12- 

 flowered, with few or no bracts; pedicels slender; petals white, pellucid, 10-12 

 mm. long; capsule longer than the sepals; seeds bright, shiny, 1-1.5 mm. broad. 

 In cold woods along streams in the mountains. 



Claytonia sibirica L. Stems simple, erect or ascending, 15^0 cm. high; 

 basal leaves ovate, 2-6 cm. long, contracted into long margined petioles,- 

 cauline pair ovate, sessile but not united; raceme bracteate, loose, the flowers 

 on long pedicels; petals white or pink with red veins, about 6 mm. long; seeds 

 granulate. In wet places, especially in woods. 



Claytonia arenicola Henderson. Annual; stem erect or ascending, simple, 

 5-12 cm. tall; leaves all linear-lanceolate or spatulate, acute, 2-6 cm. long; 

 raceme of 2-14 flowers, each from the axil of a small bract; pedicels slender, 

 spreading; petals pink, notched, 6-8 mm. long; capsule shorter than the calyx; 

 seeds shiny, 1 mm. broad. Along Snake River and about Spokane. 



