48 
* * Stamens 5 or 6, all perfect or some without anthers: style 1. 
3. Aspicarpa. Erect shrubs: stamens 5, only 2 perfect: fruit a solitary crested 
nut. 
4. Janusia. Shrubby and often climbing: stamens 6, all perfect or some without 
anthers: fruit of 2 or 3 samaras (winged as in the maple). 
1. MALPIGHIA L. 
Shrubs, with opposite short-petioled leaves, small stipules, small 
reddish or purple flowers in axillary umbels with slender articulated 
bracteolate pedicels, and fruit as in generic key. 
1. M. glabra L. Shrub, 3 to 12 dm. high: leaves ovate, acute or acuminate, gla- 
brous, 2.5 to 3.5 cm. long.—A Mexican plant of the lower Rio Grande and extending 
to Corpus Christi Bay in Texas. 
2. GALPHIMIA Cav. 
Shrubby or barely suffruticose, with opposite leaves biglandular near 
the base or at apex of the short petioles, yellow or orange (reddish 
with age) flowers in terminal racemes and on articulated bracteolate 
pedicels, and fruit as already given. 
1. G. angustifolia Benth. Low, 3 to 6 dm. high, mostly glabrous, with slender 
stems herbaceous above the base: leaves glaucescent, oblong to lanceolate or linear: 
racemes loose, the small yellow flowers quickly turning red and refracted in fruit on 
the articulated pedicels. (G. linifolia Gray.)—Rocky hills and prairies between the 
Colorado and the Rio Grande. 
3. ASPICARPA Lag. 
Slender, erect and branching, shrubby, with 2 forms of flowers: nor- 
mal, with glandular calyx, fimbriate-ciliate petals, 5 stamens and 2 of 
them perfect; but the fruit chiefly from the abnormal and more pre- 
cocious flowers which have no glands on the calyx, are apetalous, have 
a single rudimentary anther and a single more or less crested nut. 
1. A. hyssopifolia Gray. Stems erect, numerous from a woody base, 12.5 to 30 
cm. high: leaves linear-lanceolate or lowest oblong, hispid-ciliate, otherwise mostly 
glabrous, veinless: flowers axillary and solitary, petaliferous ones peduncled, apeta- 
lous ones closely sessile in the lower axils: carpels reticulate, acutely crest ed on the 
back.—River valleys between the Colorado and the Rio Grande, and extending west 
of the Pecos. 
2, A. longipes Gray. Stems numerous from a woody base, very hirsute with ap- 
pressed centrally fixed hairs, diffusely decumbent or procumbent, 3 to 9 dm. long: 
leaves ovate or ovate-oblong, cordate at base, pubescent both sides, primary veins 
conspicuous underneath: apetalous fertile flowers on long peduncles (1.5 to 3 em. 
long) with 2 small leaf-like bracts at apex: petaliferous flowers 3 or 4 together on 
slender pedicels terminating similar but longer and more foliaceous-bracteate pedun- 
cles or axillary filiform branches: carpels smoothish.—Rocky hills west of the Pecos. 
4. JANUSIA A. Juss. 
Slender twining or trailing plants, with 2 forms of yellow flowers in 
axillary umbellate clusters, the normal with a gland-bearing calyx, con- 
spicuous clawed petals, a 3-angled style and 3 ovaries, the abnormal 
with an eglandular calyx, often rudimentary petals, no style and 2 ovya- 
