STANDLEY——-ALLIONIACEAE OF THE UNITED STATES. 355 
37, Allionia carletoni Standley, sp. nov. 
Plant about 1 meter high; stems simple below or more or less branched, 
stout, whitish, soft-pubescent throughout; leaf blades lanceolate, very thick, 
acutish, somewhat wavy-margined, conspicuously veined, rounded or cuneate 
at the base, 7 cm. long and 3 cm, wide or less, puberulent on both surfaces, 
almost or quite sessile; inflorescence paniculate, the branches mostly opposite, 
stout, open; involucres about 15 mm. in diameter, the lobes rounded or obtuse 
and short, with rather copious soft pubescence, ciliolate; involucres on pedicels 
about 10 mm. long, the pedicels subtended by very small and inconspicuous 
bracts: fruit 5 mm. long, acutish above, narrowed below, with 5 prominent 
smooth ribs, the spaces between the ribs each with a single vertical row of 
tubercles; fruit glabrous, , 
Easily distinguished by the glabrous fruit and the fine, short pubescence of 
the stems. Type U. 8. National Herbarium no, 22755, collected in Barber 
County, Kansas, June 21, 1891, Carleton 256. also collected in Oklahoma, 
Neutral Strip, 1891, Carleton 361, 
The specific name was adopted from Doctor Heimerl in herbarium under 
Mirabilis. 
38. Allionia exaltata Standley, sp. nov. 
Plant about 1.5 meters high from a rather thick, woody root; stem little 
branched below, glabrous throughout, glaucous, stout below, but slender above; 
lenf blades rather narrowly lanceolate, 70 min. long and 18 mm. wide or less, 
neutish, attenuate at the base to a very short, thick petiole, or sessile, more 
or less wavy-margined, glabrous; inflorescence very openly paniculate, its 
branches slender and opposite; involucres on pedicels mostly about 10 mim. 
long, mostly glabrous or with a very few minute hairs; involucres 15 mm. in 
diameter. their lobes broadly ovate and rounded, glabrous or with a few 
minute hairs when young; fruit obtuse or acutish above, narrowed below, 
rugulose between the ribs, prominently 5-angled, glabrous. 
This is u more slender plant than A. carletoni, and is probably ordinarily 
tnller. It is readily separated from that species by its glabrous stem and 
leaves, the latter also being narrower. Type U. 8S. National Herbarium no. 
yegoo, collected in the Cimarron Valley, Cherokee Outlet, Oklahoma, June, 1891, 
Carleton 223: also collected on the Cimarron River, Oklahoma, 1899, Mark 
White 168. 
29 Allionia sessilifolia Osterhout, Bull. Torr. Club 32: 611, 1905, 
Specimens examined: 
Cotorapo: Canyon of Thompson River, Larimer County, 1905, Oster- 
hout 3079. 
40, Allionia lanceolata Rydb. Bull. Torr, Club 29: 691, 1902. 
Specimens eraminced: 
CoLtorapo: Moraine Park, 1897, Osterhout; between Sunshine and Ward, 
1902, Tareedy 5211; Fort Collins, 1897, Crandall, 2125. 
Wyomine: Plumbago Canyon, 1899, C. Schuchert. . 
Missourr: Dodson, 1900, Mackenzie; St. Louis County, Bush 2090. 
The following forms connect the species with the variety described below: 
ARKANSAS: Hot Springs, F. L. Harvey 66. 
OKLAHOMA: Lincoln County, 1895, Blankinship; Vinita, 1894, Bush A783. 
40a. Allionia lanceolata uniflora (Heimerl) Standley. 
Mirabilis albida uniflora Heimerl, Ann. Cons. et Jard. Geney. 5: 182. 1901. 
