312 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
light yellowish-brown, the body indurated and depressed between the wings; 
wings 4, broad, 5 mm. wide above, much narrowed below, rounded above but 
not usually prolonged above the body, tough, thick, coriaceous, distinetly 
transversely veined. 
A species to be separated from 1, wabellata on account of its glabrous stems 
and the thick, coriaceous wings of the fruit; also of its internodes, which are 
very long, so that the plant does not appear at all leafy, Type U. S. National 
Herbarium no. 444666, collected on San Clemente Island off the coast of south- 
erm California, by Mrs. Blanche Trask, October, 1902) (no. 50). A younger 
plant from the same locality has slightly puberulent stems, leaves broader and 
orbicular or broadly elliptical, the petioles longer than the blades. I doubt if 
it is the same as the plant described above. Another specimen probably to be 
placed here is one collected at Santa Barbara, 1902, Hlmer 38754. 
EXPLANATION OF PLATE XXVIII.—a, Plant of Abronia insularis; b, fruit of same. a, 
Scale 43 b, scale 2. 
- 4. Abronia alba Hastwood, Proc. Cal. Acad. [1I. 1:97. 1898. 
Figure 51, 
Abronia wnbellata alba Jones, Contr. Western Bot. 10 : 45, 
1902, 
This species is distinguished by its white flowers. From 
A, insularis it can be separated by the thinner wings of its 
more puberulent fruit and by its shorter internodes and 
densely viscid-puberulent stem. 
Specimens examined: 
CALIFORNIA: On San Nicolas Island, April, 1897, Mrs. Blanche Trask, type 
collection. 
Fie. 51. — Fruit of 
Abronia alba. Scale 2. 
5. Abronia acutalata Standley, sp. nov. PLATE XNLX, Figure 1. 
Perennial ?; stems prostrate, puberulent; leaf blades elliptical, obtuse or 
acutish, attenuate at the base, 15 to 20 mm. long and 5 to 12 mm. wide, spar- 
ingly viscid-puberulent; petioles 10 to 25 mm. long, viscid-puberulent; bracts 
4 or 5, lanceolate, acute, about 5 mm. long and 2 mm. wide, puberulent; flowers 
about 8, 10 mm. long, the limb 5 mm. wide, apparently of a brighter red than in 
A. umobellata, the tube with abundant fine, white pubescence: fruit about 10 mim. 
long and as wide, its wings very broad and thin, about 5 mm. wide, narrowed 
to the base of the body, spreading above and prolonged above the body of the 
fruit, acute above at the ends of the wings: beak of fruit very short. 
This is distinguished from A. umbellata by its smaller flowers and by the 
prolonged, acute wings of the fruit; from A, Dbreviffora it differs in the shape 
of the leaf blades and the characteristics of the fruit. Type in the Herbarium 
of the Missouri Botanical Garden, cotype National Herbarium no. 402105; ecol- 
lected in the Olympic Mountains, Clallam County, Washington, August, 1890, 
HBilmer 2790. 
EXPLANATION OF PLATH XXIX.—Fig. 1, a, plant of Abronia acutalata; b, fruit of 
same. Lig. 2, a, plant of A. minor; b, fruit of same. Figs. 1 and 2, a, scale 4; b, scale 2. 
G6, Abronia breviflora Standley, sp. nov. PLATE XXX. 
Annual; stems spreading, slender, with very short and scanty viscid 
pubescence; leaf blades with a very few minute, scattered, glandular-viscid 
hairs, ovate, 20 to 25 mim. long and 15 to 19 mm. wide, acutish, broadly obtuse 
or truncate at the base; petioles puberulent, 20 to 380 mm, long; peduncles about 
30 mm. long, with very short, fine, viscid pubescence; bracts 4 or 5, narrowly 
lanceolate, attenuate, 5 mm. long or less, less than 2 mim. wide, puberulent ; 
flowers 10 to 12, about 10 mm. long; limb about 6 mm. wide, apparently of a 
rather bright red color, the tubes with a fine viscid pubescence longer than 
