April, 1916. Euphorbiace^ — Millspaugh 405 



Chamaesyce sulfurea sp. no v. 



Annual, prostrate-rosulate, siilphur color when dried, glabrous. 

 Root short; stems many, radiating from the rootstalk, thick, terete; 

 branches and branchlets many, dichotomous. Inflorescence solitary in 

 the leaf axils throughout the plant. Leaves ovate-lanceolate, inaequi- 

 lateral, somewhat falcate, 5x3-11x7 mm., the midrib prominent 

 beneath, base unequally-cordate, apex acute, margin entire, somewhat 

 thickened and revolute; petioles about one-quarter the length of the 

 blade; stipules lacerate-fimbriate. Involucres globular, 5 -columnar, 

 glabrous; peduncle two-thirds the length of the tube; involucral lobes 

 deltoid, truncate, 3-toothed at the apex; sulcus shallow, rounded, unoc- 

 cupied; glands large, stipitate, scutelliform; appendages none; bracteoles 

 numerous, ligulate, interspersed with 5, thin, lanceolate, fimbriate, 

 ciliate petaloid rudiments; stamens few, filaments short, glabrous; 

 female flower long-coliminar-pedicellate, glabrous; ovary smooth, styles 

 clustered in an erect close mass nearly as large as the ovary itself, 

 styles thick, clavellate, approximate, bifurcate to the middle. Capstile 

 strongly tricoccous, the carpels smooth, line of dehiscence strongly 

 marked; seeds white, 1.5 x i mm., dorsal angle prominent, the whole 

 surface beautifully sculptured into short, rounded, high, broken trans- 

 verse ridges appearing like a miniature white cluster of earthworm casts. 



Near Ch. ocellata from which the seeds readily differentiate it. 



Type station Butte Co., California, on hills east of Chico, near Big 

 Chico Creek, September 16, 1913, A. A. Heller 11 140 (Type in herb. 

 Field Museum cat. no. 411,411). Also collected at or near the type 

 station by H. M. Hall, July, 1914, 9759- 



Chamaesyce Gooddingii sp. nov. 



Glabrous, prostrate, annual, reddish-green in general color, with a 

 mass of wiry stems and branches from the somewhat thickened root- 

 stalk. Inflorescence solitary in the terminal axils. Leaves ovate, 

 obtuse, 4 X 2-7 X 5 mm. palmately 3-nerved, the midvein prominent 

 beneath, unequally cordate, margin entire; petioles about one-quarter 

 the length of the blade; stipules: the lower filiform, entire, the upper 

 ligulate and often few-lacerate at the apex. Involucres turbinate, 

 glabrous, peduncles about one-half the length of the tube; lobes triangu- 

 lar, apiciilate, the margins blunt-ciliate; sulcus shallow, its fundus oc- 

 cupied by a narrow, lanceolate fiifth lobe; glands stipitate, transversely 

 narrow-scutelliform, the outer edge crenate-dentate to the appearance of 

 an appendage; bracteoles none; petaloid rudiments flabelliform, many- 

 fimbriate; stamens few, filaments long, glabrous; female flowers long- 

 pedicelled, glabrous, styles divergent, bilobate at the apex. Capsule 



