atoll research bulletin no. 392 the flora of - Smithsonian Institution ...

ovary; fruit, about 1 mm long, subglobose, 3-lobed schizocarp, sparsely hairy on the
margins, pinkish or purplish, on a stalk as long as the fruit, splitting at maturity into
three 1-seeded segments; seeds, about 0.8 mm long, narrowly ovoid, truncate basally,
apically obtuse, tetragonal, reddish or grayish, 5- to 7-grooved transversely. Weed along
paths and open waste places; pioneer plant in recently mined areas. 1(62.R), 3(58630,
58631), 4(116N), 5(22), 6, 7, 8(9552).
Euphorbia pulcherrirna Willd. ex Klotszch
syn. Poinsettia pulcherrima (Willd .) R. Grah.
"poinsettia"
Recent introduction. Mexico. Rare. Erect, glabrous, branching, soft-wooded
shrub, up to 2 in or higher, with white latex; leaves, 8 to 25 cm long and 5 to 15 cm
wide, elliptic to elliptic-ovate, acute, entire or slightly sinuate-toothed or lobed, often
somewhat fiddle-shaped, bright green, pubescent; petioles, 3 to 8 cm long; uppermost
bracteal leaves bright red (rarely pink, white or yellow), lanceolate, forming a rosette,
borne at the tips of long arching stems; flowers, monoecious, inconspicuous, greenish,
petal-less, in rather large cyathia; involucre, 8 to 10 mm high, green, with reddish 5-
laciniate lobes, with a large yellowish gland about 4 mm long; styles, bifid, red; fruit,
about 1.5 cm long, a long-stipulate capsule, glabrous, nodding; seeds, about 6 mm
across, subglobose, pale, smooth. Planted ornamental. 6.
Euphorbia rubicunda B1. " thyme-leafed spurge", "dwarf spurge"
te tarai (K)
syn. E. thym(folia sensu auct. non L.
Recent introduction. India. Occasional. Small prostrate, hispid, annual herb, with
pinkish stems and white latex; leaves, up to 1 cm long, opposite, obliquely oblong
obtuse, crenulate, glabrous or puberulent, coppery; stipules, less than 1 mm long,
elongate fimbriate; flowers, monoecious, minute, petal-less, borne in cyathia arranged in
short, few-flowered axillary clusters (cymes) on short pedicels; involucre enclosing
several male and 1 female flowers, gland small or none; fruit, about 1 mm long, very
shortly-stalked, white-pubescent, 3-celled capsule; seeds, about 0.7 mm long, 1 per cell,
blunt, light-brown, 4-angled, with 5 or 6 shallow transverse furrows. Weed along
roadsides and around buildings. 3(58824, 58661), 6, 7, 8(9561).
Euphorbia tirucalli L. "pencil plant", "pencil tree", "naked lady", "milk hedge",
"milk bush"
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Recent introduction. E. Africa and India. Occasional. Medium to large, freely
branching shrub, up to 4 m or higher, with numerous slender, cylindrical, leafless, green
articulated branches; leaves, 0.7 to 2.5 cm and up to 0.5 cm wide long or less, narrow,
reduced to linear scales on youngest branch tips, early caducous; flowers, inconspicuous,