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ments, and 8 stamens with 5 small glands at base: pistillate flowers on long and 
reflexed pedicels at the base of the staminate raceme, with calyx 5-parted to the 
base, globose smooth ovary, 3 short styles, and dilated cristate-lobed stigmas.— 
Ringgold on the lower Rio Grande. 
2, M. angustiloba (Torr.) Muell. Smooth, 3 to 9 dm. high, from a somewhat shrubby 
base, branching above: leaves 5-parted, the lobes narrowly lanceolate-linear, entire 
or undulate, acute, 5 to 12 em, long; stipules minute, subulate: racemes 15. to 
20-flowered, the 2 lowest flowers fertile: staminate calyx greenish-white, broadly 
campanulate, 5-lobed about half way down, the lobes oblong: pistillate 5-parted to 
the base: stamens 10, with 5 glands at base: seeds 9 mm. long, gray mottled with 
dark purple (Janipha Manihot, var. angustiloba Torr.)—From Monterey to New 
Mexico, and probably in southwestern Texas. 
8. ARGYTHAMNIA P. Browne. 
Kreet herbs or undershiubs, with purplish juice, alternate usually 
stipulate leaves, monacious (or seldom diccious) racemose flowers, 
d-parted calyx, petals alternate with sepals and the prominent lobes of 
the disk, 5 to 15 stamens united into a central column in 1 to 3 whorls, 
1 to 3-cleft style, 3-lobed depressed pod, and subglobose roughened or 
reticulated non-carunculate seeds. 
* Flowers diecious: glands short. 
1. A. aphoroides Muell. Shrub: leaves subsessile, elliptical, ovate, obovate or 
lanceolate, entire, 3-nerved: racemes loug-peduncled, few-flowered, exceeding the 
leaves: pistillate flowers with lanceolate acute calyx-lobes and very short petals; 
the staminate with very acute calyx-lobes, spatulate-obovate obtuse petals, and the 
broadly ovoid glands almost free above on a hypogynous disk: stamens 8 to 15, in 2 
or 3 Whorls: ovary and pod villous: styles united below, bifid.—Southern Texas. 
** Flowers monacious: glands rather long or elongated, narrow. 
+ Petals not rudimentary. 
++ Lobes of style not at all dilated. 
2. A. Neo-Mexicana Muell. Stems scarcely 3 dm. high, appressed-pilose, mostly 
simple, from many thickened woody roots; leaves lanccolate-ovate or lanceolate or 
linear-lanceolate (1.5 to 2.5 em. long), acute, narrow at base, entire, at last pur- 
plish: raceme shorter than the leaves: pistillate flowers with cealyx-lobes ovate-lan- 
ceolate and clongating in fruit, and the lanceolate acute petals (pilose on the back) 
shorter; staminate with narrow lanceolate calyx-lobes, spatulate petals equaling 
the calyx, and the glands almost free above: ovary long and densely hispid-pilose: 
styles deeply bifid, with lobes narrow and smooth: seed globose-conical, truncate at 
base, acute and tuberculate roughened at apex (Aphora humilis Torr.)—Staked 
Plains, near Odessa Station. 
++ ++ Lobes of style dilated above. 
3. A. humilis (Eng. & Gray) Muell. Stems about 3 em. high, much branched, 
silky or strigose-pubescent, with spreading branches: leaves narrow at base, spatu- 
late or obovate-lanceolate, or linear-lanceolate, acute, sparingly pubescent: racemes 
much shorter than the leaves, on very short peduncles: calyx-lobes narrowly lan- 
ceolate: staminate petals lanceolate, about equaling the calyx; pistillate linear-lan- 
ceolate, shorter than the filiform glands: ovary and pod rough-pubescent: lobes of 
the styles reniform-dilated at apex: seeds reticulated, narrow, minutely plicate. 
(Aphora humilis Eng. & Gray.)—From the Chenate mountains to southern Texas. 
Much resembles the last, but differs in form of petals and styles, 
