Part 3, 1918] ALLIONIACEAE 203 
3. Acleisanthes anisophylla A. Gray, Am. Jour. Sci. II. 15: 261. 
1853. 
Plants prostrate, from a stout or slender fruticose root, much branched from the base, 
the branches slender, cinereo-puberulent; leaves of a pair very unequal, the smaller scarcely 
longer than the petioles of the larger ones, the petioles of the larger leaves 3-10 mm. long, the 
blades oval, oblong-oval, or oval-rhombic, obtuse or rounded at the base, unequal and short- 
decurrent, rounded to obtuse at the apex and apiculate, thick and succulent, flat, minutely 
puberulent when young, becoming glabrate, the blades of the larger leaves 1-5 cm. long and 
0.6-2.7 cm. wide; flowers axillary, solitary, sessile, the bracts linear-subulate, less than half 
as long as the fruit; perianth 4-5 cm. long; fruit 5-angulate, costate, sparsely puberulent or 
soon glabrate. 
Type Locaity: Prairies of Turkey Creek and Elm Creek, western Texas. 
DisrRieution: Known only from the type locality. 
4. Acleisanthes crassifolia A. Gray, Am. Jour. Sci. II. 15: 260. 
1853. 
Stems procumbent, sparsely branched, 2-5 dm. long, stout, covered with short stout 
flat white appressed hairs, o1 in age glabrate, the internodes mostly longer than the leaves; 
leaves of a pair subequal, the petioles stout, 3-10 mm. long, the blades ovate, oblong-ovate, 
or rarely narrowly deltoid-ovate, 2.5-3.5 cm. long, 1.2-2 cm. wide, obtuse to broadly rounded 
at the base, obtuse or acutish at the apex and abruptly apiculate, flat, thick and succulent, 
when young pubescent like the stems but in age glabrate; bracts linear-lanceolate, long- 
attenuate, less than half as long as the fruit; flowers few, sessile, the perianth about 4 cm. long, 
slender, densely cinereo-puberulent outside; fruit oval-oblong in outline, 6 mm. long, 4 mm. 
in diameter, truncate at both ends, shallowly 5-sulcate, the ribs broad and flat, densely covered 
with short flat white appressed hairs. 
TYPE LocaLiry: High prairies of San Felipe Creek, western Texas. 
DISTRIBUTION: Western Texas. 
5. Acleisanthes longiflora A. Gray, Am. Jour. Sci. II. 15: 261. 
1853. 
Plants decumbent or ascending, from a slender or thick woody root, much branched, the 
branches slender, 2-5 dm. long, cinereo-puberulent or rarely short-hirtellous, glabrate below; 
leaves of a pair subequal, the petioles stout or slender, 3-8 mm. long, the blades broadly 
deltoid-ovate or rhombic-ovate to deltoid, lanceolate, or linear-lanceolate, 1.5—4.5 cm. long, 
0.3-3.5 cm. wide, truncate to acute at the base and decurrent, acuminate or rarely acute to 
long-attenuate at the apex, thick and succulent, glaucous, often crispate, the margins then 
undulate or when dry apparently coarsely dentate, sparsely cinereo-puberulent when young 
or rarely short-puberulent, soon glabrate; flowers axillary, solitary, sessile or subsessile, the 
bracts linear-subulate, half as long as the fruit or shorter, the perianth 9-17 cm. long, white 
tinged with purple, sparsely and minutely puberulent outside, the tube very slender, 1.5-2 
mm. in diameter, the limb 1.5~2 cm. broad; stamens short-exserted; fruit narrowly oblong, 
5-6 mm. long, truncate at both ends, 5-angulate, puberulent or rarely short-hirtellous, often 
glabrate. 
TypE Locality: Valley of the Limpio, western Texas. . . 
DISTRIBUTION: In dry, often alkaline soil, southern and western Texas to Riverside County, 
California, southward to Chihuahua and Coahuila. 
ILLUSTRATION: Bot. Mex. Bound. Surv. pl. 46. 
6. Acleisanthes obtusa (Choisy) Standley, Contr. U. S. Nat. Herb. 
12: 371. 1909. 
Nyctaginia obtusa Choisy, in DC. Prodr. 13?:_429. 1849. 
Aes Berlandieri A. Gray, Am. Jour. Sci. II. 15: 260. 1853. 
Plants procumbent, much branched, the branches slender, densely cinereo-puberulent, 
becoming glanrate, the internodes often exceeding the leaves; leaves of a pair subequal, the 
