EUPHORBIA § ANISOPHYLLUM. 57 



becoming red with age, not glaucescent : a span to a foot 

 high; erect and simple base of stem an inch or two high, 

 parting abruptly into numerous almost horizontally spread- 

 branches: leaves obovate- to spatulate-oblong, with 3 — 4 

 pairs of pinnate veins, the margin serrulate above the mid- 

 dle: stipules setaceous, entire or somewhat lacerate, spread- 

 ing or deflexed : glands minute, dark red with narrow rose- 

 colored appendages: seed dark gray, faintly rugose-pitted, 

 scarcely twice as long as broad. — Boiss. 1. c. 35: E. serpylli- 

 folia in part, of Watson, Bot. Cal. ii. 74: E. inoequilatera, 

 Engelm. Mex. Bound. 1. c. as to the Calif ornian plant, 

 doubtless. 



Described here from specimens collected by the writer, in 

 Napa county, Cal., October, 1882. E. serpyUifolia, besides 

 being wholly prostrate has veinless leaves, and is very brittle, 

 by the absence of fibrous tissue; but the stem and branches 

 of this plant are almost as tough as those of flax. It has 

 the erect-spreading habit, but not the foliage nor the sharply 

 angular branches of E. Neo-Mexicana, which latter is also 

 brittle like E. serpyllifolia. Our Calif ornian plant matches 

 well African specimens of E. sangii'mea. 



E. RUSBYi. — Annual, pubescent, a span to a foot high, 

 branches ascending: leaves oval, nearly sessile, very ob- 

 lique, the major side cordate, serrate, and with a single 

 veinlet su^Dplementary to the mid -vein : stipules parted to the 

 very base into a pair of slender, erect, ciliate sette: glands 

 small, orbicular, cup-shaped, with a reniform, entire, rose 

 colored appendage: seed quadrangular, rugose-pitted, red- 

 dish. 



Northern part of Arizona, 1883, Dr. H. H. Kusby. 



E. VELUTIXA. — Velvety canescent: branches and branch- 

 lets numerous, prostrate, forming a close mat: leaves 

 crowded and almost sessile, veinless, the lower orbicular and 

 coarsely toothed, the floral obovate-oblong and mostly en- 



5— Bull. Cal. Acad. Sci. II. 5. Issued March 6. 1886 



