Part 3, 1918] ALLIONIACEAE 229 
pilose, the angles broad, usually tuberculate, the sides coarsely or finely tuberculate; seed 
obovoid, 2-3 mm. long, brownish-stramineous. 
TYPE Locality: New Mexico, probably about Santa Rita. 
DIisTRIBUTION: Meadows and thickets in the mountains, Arizona to western Texas, southward 
to Sonora and Puebla. 
23. Allionia longipes Standley, sp. nov. 
Allionia melanotricha Standley, Contr. U. S. Nat. Herb. 13: 409, in part. 1911. 
Plants about a meter high, copiously branched below, the branches stout, ascending, 
glaucescent, bifariously puberulent, the internodes elongate; petioles slender, 2-5.5 em. long, 
pubertlent; leaf-blades deltoid-cordate, 2-5.5 cm. long, 2-4.5 em. wide, deeply cordate at the 
base and subdecurrent, acute or attenuate at the apex, entire, thin, bright-green, minutely 
ptherulent or glabrate, ciliolate; inflorescence cymose-paniculate, about 30 cm. long, copiously 
branched, the branches chiefly alternate, stout, viscid-pilose with fulvous hairs, very sparsely 
bracteate; involucres numerous, 3-flowered, slender-pedunculate, 4-5 mm. long at anthesis 
and 7-8 mm. in fruit, densely fulvous-pilose, the lobes short, deltoid-ovate or rounded-ovate, 
acute or acutish, at least in fruit; perianth about 12 mm. long, sparsely pilose; stamens 3, 
short-exserted; fruit obovoid, 5 mm. long, brownish-olivaceous, densely short-pilose, the 
angles broad, smooth or slightly, rugulose, the sides rugulose; seed obovoid, 3 mm. long, pale- 
brown. 
Type collected in the vicinity of Durango, State of Durango, in 1896, Edward Palmer 261 (U.S. 
Nat. Herb. no. 304437). 
24. Allionia ciliata Standley, Contr. U.S. Nat. Herb. 12: 345. 
1909. 
Ca ties aad A. Gray, in Torr. Bot. Mex. Bound. Surv. 168. 1859. Not O. aggregatus 
a 
, 1806. 
Allionia delioidea Standley, Contr. U. S. Nat. Herb. 13: 405. 1911. 
Oxybaphus ciliatifolius Weatherby, Proc. Am. Acad. 49: 492. 1913. 
Stems few, from a slender woody root, 2-4 dm. high, rather slender, copiously branched, 
glaucous, glabrous or bifariously puberulent, the lower internodes short, the upper elongate; 
petioles stout, 0.5-2 cm. long, sparsely pilose with stout white hairs; leaf-blades elongate- 
deltoid, ovate-deltoid, or deltoid-lanceolate, 0.5-1.8 cm. wide, entire or subundulate, succulent, 
coriaceous when dry, glaucous or glaucescent beneath, sparsely pilose or glabrate, long-ciliate, 
at least near the base; inflorescence of numerous small dense cymes, or of axillary involucres 
in young plants, the branches slender, puberulent and pilose; involucres 3-flowered, short- 
pedunculate, about 4 mm. long at anthesis and 8 mm. in fruit, densely white-pilose, the lobes 
short, broadly ovate or ovate-orbicular, acute or acutish, at least in age; perianth about 1 cm. 
long, very sparsely pilose or glabrous, the limb about 15 mm. broad; stamens 5, exserted; 
fruit broadly obovoid, 3.5-4 mm. long, dark-brown, sparsely and minutely pilose, the angles 
broad, obscurely rugulose, the sides also slightly rugulose; seed globose-obovoid, 2 mm. long, 
pale-brown. 
Typx LocaLity: Smiths Run, western Texas. 
DIsTRIBUTION: Western Texas and Coahuila. 
25. Allionia violacea L. Syst. ed. 10. 890. 1759. 
Oxybaphus violaceus Choisy, in De. Prodr. 132: 432, 1849. 
Oxybaphus violaceus parviflorus Choisy, in DC. Prodr. 132: 432, 1849. 
Mirabilis violacea Heimer] Beitr. Syst. Nyct. 23. 1897. 
Allionia mollis Standley, Contr. U. S. Nat. Herb. 13: 405. 1911. 
Stems few or numerous, slender, ascending or procumbent, 2-10 dm. long, much branched, 
the branches slender, green, bifariously puberulent or glabrate, sometimes viscid-pilose, the 
internodes much elongate; petioles slender, 1-6 cm. long, sparsely or densely pilose; leaf-blades 
mostly broadly ovate-deltoid, sometimes ovate-oblong or elongate-deltoid, 2-8 cm. long, 
1.5-5 cm. wide, subcordate or truncate at the base, usually attenuate or long-attenuate at 
the apex, rarely obtuse or rounded, entire or subundulate, thin, bright-green, sparsely puberu- 
