STANDLEY—-ALLIONIACEAE OF THE UNTTED STATES. 321 
°7. Abronia carletoni Coult. & Fisher, Bot. Gaz. 17: 349. 18092. 
Abronia turbinata carletoni Jones, Contr. Western Bot. 10: 44, 1902. 
I have not seen the type of this species which is in the herbarium of the 
University of Chicago, now deposited with the Field Museum of Natural His- 
tory; Doctor Millspaugh, however, was kind enough to send a full-sized photo- 
graph of the specimen which shows the characteristics of the plant almost 
as well as the specimen itself could do, It is not the same as A. angustifolia, 
as Mr. Jones claims, but seems to me much nearer A, fragrans, The bracts 
are elliptical or obovate, acute, scarious, about 5 mm, long, the plant slender, 
the leaf blades 1 to 3 cm. long, oblanceolate, acutish at the apex. Type col- 
lected in eastern Colorado in 1891, J. A. Carleton 459; apparently not since 
collected. 
28, Abronia glabra Rydb. Bull. Torr. Club 29: 685. 1902. Figure 59. 
Specimens eramined: 
CoLtorapo: Grand Junction, 1888, Jones, type; hills near 
Grand Junction, 1900, S. G. Stoles, 
This is very closely related to A. elliptica and perhaps hardly 
separable. 
29, Abronia ramosa Standley, sp. nov. PLATE XXNIX. Fig 59.—Fruit 
Perennial: stems ascending, slender, about 80 cm. high, pale, Of 4brenta 
much-branched, minutely puberulent throughout but not viscid: glabra. Seale 
leaf blades thick, minutely puberulent on both surfaces, elliptical, 7 
oblique at the base, obtuse; petioles as long as the blades or longer; peduncles 
densely puberulent, 2 to 4 cm, long; bracts obovate, 1 cm. long, obtuse; flowers 
12 mm. long, their tubes densely puberulent; fruit cuneate-obpyramidal in 
outline, with 5 thin double wings; these closely veined, much narrowed below, 
truncate above, and surmounted by conspicuous flat disks, minutely puberulent. 
This is nearest A. elliptica and A. glabra, From the former it differs in its 
branched stem and smaller flowers and in the wings of the fruit, which are 
surmounted by disks; from the latter, in its puberulent stem, larger obtuse 
bracts, and the slightly different fruit. Type U. S. National Herbarium no. 
410003, collected at Holbrook, Arizona, June 16, 1901, by L. F. Ward. 
Other specimens eramined: 
Arizona: Holbrook, 1896, Myrtle Zuck; Moki Reservation, 1896, Hough 
16a: Carrizo, 1892, Wooton; Woodruff, 1892, Wooton, 
ExpLANATION OF PLATE XXXIX.—a, Plant of Abronia ramosa; b, fruit of same, a, 
Scale 3; 6, scale 2. 
80. Abronia glabrifolia Standley, sp. nov. PLATE XL, Ficure 1. 
Stems erect, slender, branched, few-leaved, glabrous; leaf blades broadly 
elliptical, rounded at both ends, thick and fleshy, glabrous; petioles as long 
as the blades or longer; peduncles 4 cm. long or less, slender; bracts broadly 
elliptical to obovate, scarious, obtuse, 10 to 12 mm. long and 7 or 8 mm. wide; 
flowers 15 mm. long, their tubes glabrous; fruit 5 or G mm. long and 2 mm, in 
diameter, clavate or cylindrical in form, not at all winged or ridged, but smooth, 
acute or obtuse above, not at all angled, glabrous. 
This can be distinguished from any other species of Abronia by its smooth 
and glabrous fruit; otherwise it is much like A. elliptica, except for its more 
branched stem. Type in the herbarium of the University of California, col- 
lected in Colorado in 1878, “ex herb. Wm. F. Flint.” 
EXPLANATION oF PLATE XL.—-Fig. 1, a, plant of Abronia glabrifolia; b, fruit of same. 
Fig. 2, a, plant of A. orbiculata; b, fruit of same. Figs. 1 and 2, «, scale 4; b, scale 2. 
