Part 3, 1918] ALLIONIACEAE 219 
Leaf-blades linear or lance-linear, acute or 
attenuate at the base. 10. A. decipiens, 
Leaf-blades mostly elongate-deltoid or deltoid, 
sometimes rather broadly lanceolate, obtuse 
to cordate at the base. 22. A. comata. 
Lobes of the involucre broadly ovate or ovate- 
orbicular, usually shorter than the tube, 
acute or acutish at the apex, at least in fruit, 
pilose with white or fulvous hairs. 
Leaf-blades acute or acutish at the base, lance- 
olate or broadly lanceolate. 15. A. aggregata. 
Leaf-blades rounded to cordate at the base, 
ovate-cordate to lance-deltoid. 
Leaf-blades deeply cordate at the base, 
often shorter than the petioles, these 
puberulent or short-pilose with fulvous 
hairs; fruit 5 mm. long. 23, A. longipes. 
Leaf-blades rounded to subcordate at the 
base, much longer than the petioles, these 
long-pilose with white hairs; fruit 3.5-4 
: mm. long. 24, A. ciliate. 
Fruit terete at maturity, irregularly and sparsely tuberculate; 
stems slender, usually procumbent, much branched; involucre 
only slightly accrescent in fruit, the lobes very unequal. 25. A. violacea. 
1. Allionia viscosa (Cav.) Kuntze, Rev. Gen. 533. 1891. 
Mirabilis viscosa Cav. Ie. 1: 13. 1791, 
Nyctago parviflora Salisb. Prodr. 57. 1796. 
Calyxhymenia viscosa R. & P. Fl. Per. 1: 46. 1798. 
Calymenia viscosa Pers. Syn. Pl. 1: 36. 1805. 
Vitmania viscosa Turra; Steud. Nom. 140, as synonym. 1821. 
Oxybaphus viscosus LHér.; Choisy, in DC. Prodr. 132: 430. 1849. 
Oxybaphus Cervantesii S. Wats. Proc. Am. Acad. 21: 436. 1886. Not O. Cervantesii Sweet, 1825. 
Allionia rotate Standley, Contr. U. S. Nat. Herb. 12: 347. 1909. 
Oxybaphus rotatus Weatherby, Proc. Am. Acad. 49: 492. 1913. 
Stems few or solitary, erect, 4-15 dm. high, stout, sparsely branched or simple below the 
inflorescence, green, densely short-pilose with viscid hairs; petioles slender, 1~6.5 cm. long, 
densely short-pilose; leaf-blades broadly cordate-ovate to ovate-deltoid, 2.5-10 cm. long, 
1.5-9 cm. wide, usually cordate at the base but sometimes truncate, abruptly short-decurrent, 
acute or attenuate at the apex, entire or subsinuate, thin, bright-green, sparsely viscid- 
puberulent or glabrate on the upper surface, short-pilose or puberulent beneath, the leaves 
of the inflorescence reduced and bractlike, often very numerous, sessile or short-petiolate, the 
blades ovate to suborbicular; inflorescence ample, paniculate, much branched, the branches 
opposite, ascending, stout or slender, densely viscid-pilose with short fulvous hairs; involucres 
numerous, slender-pedunculate, at anthesis 3-5 mm. long, in fruit 15-25 mm. broad, densely 
viscid-pilose, the lobes broadly rounded; flowers solitary or rarely 2 or 3 in each involucre, 
the perianth 8-20 mm. long, purplish-red, sparsely pilose outside, the limb 15-25 mm. broad; 
stamens 3, long-exserted; fruit obovoid, 5 mm. long, brownish-gray, glabrous, densely covered 
with large coarse rounded tubercles; seed oval-obovoid, 3 mm. long, pale yellowish-brown. 
Type LocaLity: Huanuco, Peru. 
DistRiBuTION: Chihuahua to Tamaulipas and Oaxaca; Peru. . . 
IntustRations: Cav. Ic. 1: pl. 19; Schnizl. Ic. pl. 104; Bot. Mag. pl. 434; Dict. Sci. Nat. £1. 22. 
2. Allionia corymbosa (Cav.) Kuntze, Rev. Gen. 533. 1891. 
Mirabilis corymbosa Cav. Ic. 4: 55. 1797. 
Calyxhymenia glabrifolia Ortega, Dec. 5. 1797. 
Calymenia corymbosa Pers. Syn. Pl. 1: 37. 1805. 
Oxybaphus glabrifolius Vahl, Enum. Pl. 2: 40. 1806. 
Allionia corymbosa texensis Coult. Contr. U. S. Nat. Herb. 2: 351. 1894. 
Allionia texensis Small, Fl. SE. U. S. 406. 1903. 
Oxybaphus texensis Weatherby, Proc. Am. Acad. 45: 425. 1910. 
Allionia cardiophylla Standley, Contr. U. S. Nat. Herb. 13: 405. 1911. 
Oxybaphus cardiophyllus Weatherby, Proc. Am. Acad. 49: 492. 1913. 
Stems few or solitary, erect or ascending, 3-10 dm. high, stout, simple or sparsely branched 
below, rarely suffrutescent, glaucous or glaucescent, glabrous or bifariously puberulent, usually 
puberulent or short-pilose at the nodes, the internodes elongate; petioles slender, 0.5-6 cm. 
