122 ADDENDA. 



[To Page 26.] 

 Viola glabella, N'utt. Stems 5 to 12 inches high, from a creeping root-stock, erect, 

 leafy above, with a few bracts below; leaves cordate to reniform, acute, serrate or crenate; 

 flowers yellow, veined with purple. — Redwoods. 



[To Page 31.] 

 Sida hederacea, Torr. Stems decumbent; leaves reniform, one-sided, irregularly 

 crenate or dentate; flowers solitary or clustered in the axils, half an inch long, yellowish; 

 calyx with one or two slender bractlets. 



[To Page 105.] 

 Polygonum Paronychia, Cham. & Sclilecht. Stems woody, prostrate, leafy; leaves 

 linear, revolute, the midrib channeled, and each side ciliolate; the pinkish flowers in 

 dense spikes, — Common near the coast. 



[To Page 108.] 



Sagittaria variabilis, Engelm (?). Flowers in whorls of three on an angled scape, 

 one to several feet high, the upper flowers on longer pedicels and steril; calj'x green; 

 petals broad, 3 or 4 lines long, white; stamens many; ovaries forming a head of beaked 

 achenia. — A marsh herb, with obtuse, sagittate leaves, or some (without a true blade) 

 linear. 



[To Page 109.] 



Calypso borealis, Salisb. Bulb globular, solid, bearing a 1 -flowered scape, 5 or 6 

 inches in height, and a solitary ovate leaf; sepals and petals linear, pinkish, the lip slip- 

 per-shaped, 2-pointed underneath the apex, an inch long, variegated purple and yellow. 

 Moist woods, Duncan's Mill, Piussian Piver. Miss Wood. 



[To Page 111.] 



Erythronium grandiflorum, Pursh. Var. (?) Scape arising from an oblong corm, 

 which bears a j^air of broad leaves; flowers lily-like, racemose or solitary, yellowish, an 

 inch or two long. — Healdsburg, 7?. H. Thomson. Cloverdale. 



E. Hartwegi, Wat., has usually mottled leaves, the flowers solitary, or two or three 

 in a sessile umbel. — Yuba Co., B. K. Hill. 



E. purpurascens, Wat., may be known by its large bulb, undulate leaves and purple 

 tinged flowers. — Sierra Nevada. 



