Part 3, 1918] ALLIONIACEAE 223 
linear to broadly ovate; involucre at anthesis about 4 mm. long, densely viscid-villous with 
fulvous hairs, the lobes ovate-orbicular or oval, rounded or acutish at the apex, the involucres 
in age 12-20 mm. broad, the lobes rounded, conspicuously veined; flowers usually 3 in each 
involucre, the perianth about 10 mm. long, sparsely pilose, pale-pink to purplish-red, the limb 
deeply lobed, the lobes rettise; anthocarp 4.5-5 mm. long, obovoid, brownish or olivaceous, 
the angles smooth, the sides coarsely transverse-rugose; seed rounded-obovoid, 3 mm. long, 
pale yellowish-brown. 
Type LocaLity: “Upper Louisiana.” 
DISTRIBUTION: Usually in dry soil, South Dakota to Montana, Arizona, San Luis Potosi, 
Texas, and western Missouri, rarely adventive eastward. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. f. 1419, 1421; ed. 2, f. 1726; Contr. U. S. Nat. Herb. 
1: 1. 21; Clements, Rocky Mt. Fl. ol. 8, f. 1. 
10. Allionia decipiens Standley, sp. nov. 
Allionia divaricata Standley, Contr. U. S. Nat. Herb. 12: 342, in part. 1909. Not A. divaricata 
Rydb. 1902. 
Stems solitary or few, erect or decumbent, 3-8 dm. high, slender, simple or sparsely 
branched below the inflorescence, green, bifariously puberulent or glabrate, the internodes 
elongate, usually longer than the leaves; petioles slender, 0.2-3.5 cm. long, or the uppermost 
leaves sessile, the blades lanceolate to linear, 2.5-12 cm. long, 2.5-10 or rarely 20 mm. wide, 
obtuse to attenuate at the base, narrowed to the obtuse or acute apex, entire, bright-green, 
usually ciliate but otherwise glabrous; inflorescence loosely cymese-paniculate, the branches 
slender, alternate, viscid-villous with short fulvous hairs; involucres usually crowded, on 
short slender peduncles, 4-5 mm. long at anthesis, 10-12 mm. broad in fruit, densely viscid- 
villous, the lobes ovate-oval, rounded or obtuse at the apex; flowers 3 in each involucre, the 
perianth 8-10 mm. long, deep purplish-red, sparsely short-pilose, the limb 5-lobed, the lobes 
retuse; fruit obovoid, 4.5 mm. long, olivaceous, minutely hirtellous, the angles smooth, the 
sides transverse-rugose; seed oval-obovoid, 2.5 mm. long, pale yellowish-brown. 
Type collected in an oak thicket, Brazos Canyon, Rio Arriba County, New Mexico, August 
24, 1914, P. C. Standley & H.C. Bollman 10743 (U.S. Nat. Herb. no. 689453). 
DISTRIBUTION: Mountain slopes, Arizona, New Mexico, and southern Colorado. 
11. Allionia hirsuta Pursh, Fl. Am. Sept. 728. 1814. 
Calymenia pilosa Nutt. Gen. 1: 26. 1818. 
Calymenia hirsuta Nutt. Gen. 1: 26. 1818. 
Oxybaphus pilosus Sweet, Hort. Brit. 1: 334. 1826. 
Oxybaphus hirsutus Sweet, Hort. Brit. 1: 334. 1826. 
Oxybaphus hirsutus integrifolius Choisy, in DC. Prodr. 13?: 433. 1849. . 
Oxybaphus nyctagineus pilosus A. Gray, in Torr. Bot. Mex. Bound. Surv. 174, in part. 1859, 
Mirabilis hirsuta MacM. Metasp. Minn. Valley 217. 1892. 
Mirabilis nyctaginea hirsuta Heimerl, Beitr. Syst. Nyct. 22. 1897. 
Mirabilis nyctaginea pilosa Heimerl, Beitr. Syst. Nyct. 23, in part. 1897, 
Allionia pilosa Rydb. Bull. Torrey Club 29: 690. 1902. 
Allionia aggregata Rydb. Bull. Torrey Club 29: 692. 1902. Not A. aggregata Spreng. 1825. 
Allionia hirsuta rotundifolia Lamell, Bull. Leeds Herb. 2: 6. 1908. 
Allionia hirsuta coloradensis Standley, Contr. U. S. Nat. Herb. 12: 353. 1909. 
Allionia chersophila Standley, Contr. U. S. Nat. Herb. 12: 354. 1909. 
Allionia hirsuta aggregata A. Nelson; Coult. & Nels. Man. 173, in part. 1909. ; 
Allionia pilosa decumbens A. Nelson; Coult. & Nels. Man. 173, in part. 1909. Not Calymenia 
decumbens Nutt. 1818. 
Stems solitary or few, erect or decumbent, 2-10 dm. high, usually very stout, simple or 
sparsely branched below the inflorescence, green or glaucescent, densely hirsute or long-pilose 
near the base and usually up to the inflorescence, sometimes merely puberulent, but always 
hirsute about the nodes, the internodes usually elongate; petioles 5 mm. long or shorter, very 
stout, usually wanting; leaf-blades mostly ovate-oblong, sometimes lance-linear or broadly 
ovate, 3-11 cm. long, 0.4-5 cm. wide, subcordate to long-attenuate at the base, gradually 
narrowed to the obtuse or acutish apex, entire or subsinuate, thick and succulent or some- 
times thin, usually bright-green, densely hirsute or long-pilose or often merely viscid-puberulent 
or, in age, glabrate; inflorescence in young plants often wholly of axillary involucres, in mature 
plants cymose-paniculate, copiously or sparsely branched, the branches mostly opposite, 
densely viscid-pilose, bearing few reduced bractlike leaves; involucres commonly 3-flowered, 
