Part 3, 1918] ALLIONIACEAE 221 
petioles stout, 3-10 mm. long, glabrous; leaf-blades elliptic-lanceolate or lanceolate, 4.5-7 
cm. long, 0.7—2 cm. wide, acute at the base and apex, entire or subsinuate, thick and succulent, 
often glaucous or glaucesvent beneath, glabrous; inflorescence a large open panicle, much 
branched, the branches slender, ascending, glabrous or very sparsely short-pilose with viscid 
hairs, the peduncles slender, elongate, short-pilose or glabrous, the involucres 3~4 mm. long 
at anthesis, 10-12 mm. long in fruit, sparsely short-pilose or glabrous, the lobes short, rounded; 
flowers usually 3 in each involucre; fruit obovoid, 4.5 mm. long, brownish, glabrous, the angles 
acute, narrow, smooth, the sides transverse-rugulose; seed obovoid, pale yellowish-brown. 
TYPE LocaLity: Cimarron Valley, Cherokee Outlet, Oklahoma. 
DISTRIBUTION: Oklahoma. 
6. Allionia Carletoni Standley, Contr. U. S. Nat. Herb. 12: 355. 
1909. 
Oxybaphus hirsutus Holz. Contr. U. S. Nat. Herb. 1: 213. 1892. Not O. hirsutus Sweet, 1825. 
Oxybaphus nyctagineus pilosus Holz. Contr. U. S. Nat. Herb. 1: 213. 1892. Not O. nyctagineus 
pilosus A. Gray, 1859. 
Oxybaphus Carletoni Weatherby, Proc. Am. Acad. 49: 492. 1913. 
Stems few or solitary, erect, 6-12 dm. high, stout, glaucous below, simple or sparsely 
branched below the inflorescence, densely viscid-pilose with short slender fulvous hairs; leaves 
sessile or subsessile, the very stout broad petioles 4 mm. long or shorter, the blades broadly 
deltoid-ovate to ovate or ovate-oblong, 4-8 cm. long and 1-4 cm. wide, or larger, subcordate 
to obtuse at the base, narrowed to the obtuse or acute apex, entire or subsinuate, thick and 
succulent, green, or often glaucous beneath, densely short-pilose with viscid hairs, or some- 
times glabrate in age; inflorescence ample, paniculate, the branches stout, opposite, densely 
viscid-pilose, the bracts very small, the peduncles slender, elongate, the involucres 5—6 mm. 
long at anthesis, in age 12-18 mm. broad, densely viscid-pilose, the lobes broadly rounded; 
flowers usually 3 in each involucre, the perianth sparsely pilose, pink; stamens usually 3, 
exserted; fruit obovoid, 5 mm. long, brown, glabrous, the angles acute, narrow, smooth, the 
sides rugulose or obscurely tuberculate, conspicuously raphidulous; seed broadly obovoid, 
3-3.5 mm. long, pale-brown. 
Type Locality: Barber County, Kansas. 
DistRIBUTION: Oklahoma and southern Kansas. 
ILLUSTRATION: Britt. & Brown, Il. Fl. ed. 2. f. 1730. 
7. Allionia coccinea (Torr.) Standley, Contr. U. S. Nat. Herb. 
12: 339. 1909. 
Oxybaphus coccineus Torr. Bot. Mex. Bound. Surv. 169. 1859. 
Mirabilis coccinea Benth. & Hook. Gen. Pl. 3: 3. 1880. 
Oxybaphus linearifolius S. Wats. Proc. Am. Acad. 17: 375. 1882. 
Allionia linearifolia Kuntze, Rev. Gen. 533. 1891. 
Mirabilis coccinea scabridata Heimerl, Ann. Cons. Jard. Genéve 5: 186. 1901. 
Allionia linearis coccinea M. E. Jones, Contr. West. Bot. 10: 51. 2. 
Allionia gracillima Standley, Contr. U. S. Nat. Herb. 12: 340. 1909. 
Allionia gracillima filifolia Standley, Contr. U.S. Nat. Herb. 12: 340. 1909. 
Allionia gracillima scabridata Standley, Contr. U. S. Nat. Herb. 12: 340. 1909. 
Allionia linearifolia filifolia Standley, Contr. U. S. Nat. Herb. 16: 120. 1913. 
Stems solitary or numerous from an elongate woody root, erect or ascending, sparsely 
or copiously branched, the branches very slender, glaucous, glabrous, ascending, the internodes 
short or elongate; leaves numerous or few, sessile, the blades filiform or linear, 2-12 cm. long, 
1-4 mm. wide, long-attenuate to each end, thick and succulent, glaucous or glaucescent, at 
least beneath, glabrous; involucres slender-pedunculate, axillary and solitary in young plants 
and mostly with cleistogamous flowers, in mature plants arranged in loose paniculate cymes, 
these with slender, opposite, sparsely short-pilose branches; involucres at anthesis 4-5 mm. 
long, short-pilose or puberulent, deeply lobed, the lobes oval-ovate, acute or acutish, slightly 
accrescent in qge; flowers 1-3 in each involucre, the perianth 15-20 mm. long, deep purplish- 
red, the tube 3-4 mm. in diameter, gradually widening upward, the limb 11-15 mm. broad, 
deeply 5-lobed, the lobes retuse; stamens 5, exserted; anthocarp obovoid, 5 mm. long, oli- 
