144 Robinson and Greenman—Galapagos Flora. 
EupHORBIA GALAPAGEIA. Ascending, aspan high: stems slen- 
der, branching from near the base, terete, brown, under a lens 
finely and densely pubescent; cortex pealing off below; branches 
rather short, very slender, alternate, ascending: leaves opposite, 
glabrous, mostly erect, essentially entire, oblong, obtuse or roundish 
at the apex, obliquely cordate at the base, short-petioled, 3 to 6 
lines long, half as broad, somewhat pellucid in the interstices of 
the veins; stipules minute, lanceolate, somewhat fringed: invo- 
lucres alternately fascicled in the upper axils, on very short pedi- 
cels, very small, one-third line long; glands 4, unappendaged, not 
dark-colored: capsule ovate; cells finely crested upon their rather 
sharp dorsal keels, half line long; the three styles short, bifid; 
seeds yellowish-brown, finely sculptured.—Collected on Charles 
Island, June, 1891. A species with the habit of & flabellaris 
Ands., but more slender: leaves mostly smaller, stem and fruit 
pubescent, glands smaller and not dark-colored, and styles much 
shorter. 
KuPHORBIA NUMMULARIA Hook. fil. var. GLaBra. Glabrous 
throughout and somewhat glaucous: leaves nearly all unequally 
2-lobed with an oblique sinus between the lobes: seeds slightly 
longer and a little more decidedly angled than in the type.—Col- 
lected at Cuevas Bay, Charles Island, July, 1891. 
AcatypHa Bauru. Herbaceous: stem and petioles densely 
pubescent-tomentose: leaves ovate, short-acuminate, rather regu- 
larly and somewhat doubly crenate-dentate, appressed-pubescent 
upon both surfaces, especially upon the veins beneath, 14 to 3 
inches long, two-thirds as broad, 5-nerved from the truncate or 
subcordate base; petioles ascending, 1 to 2 inches long; stipules 
small, subulate-setaceous: spikes axillary, slender, 24 inches in 
length, androgynous; pistillate involucres commonly solitary, 
2-flowered, sessile near the base of the spike, the slender stami- 
nate portion of the spike about a line in diameter, flexuous, loosely 
flowered below; rhachis densely grayish pubescent: bracts of the 
fertile flowers broadly ovate, somewhat unequally 9-dentate, cleft 
a third of the way to the base, villous, 24 to 3 lines long, 4 lines 
broad : calyx deeply 3-cleft; segments ovate, acute, ciliate: styles 
laciniately many-cleft; capsule villous, nearly a line long; seeds 
ovate, very finely pitted.—Collected on the southwest end of 
Chatham Island, June, 1891. A single detached perhaps termi- 
nal inflorescence has several fertile involucres. 
ARISTIDA VILLOSA. Annual: root a cluster of short delicate 
fibres: culms several, slender, ascending, nearly a foot in height; 
internodes minutely puberulent under a lens: blade of leaves thin, 
flat, narrowly linear, 2 to 5 inches long, 1 to 1} lines broad, also 
finely puberulent and slightly scabrous and hispid upon both sur- 
faces; sheaths conspicuously silky-villous with soft white spread- 
ing hairs except near the base; the summit covered with more 
densely tufted hairs; ligules laciniately ciliate: panicles 14 to 3 
inches long, condensed and subspicate, 4 lines in diameter; lowest 
branchlets scarcely imbricated: sterile glumes nearly equal, lan- 
