210 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
to the color of the rays either by their being faded, or, more likely, by the 
two sheets of Hrigeron peucephyllus that he associated with the “ Great Falls” 
plant. The question still remains open as to the identity of Diplopappus 
linearis Hook.’ Search for the original specimens of this, both at Kew and at 
the British Museum, was unsuccessful. Doctor Gray cited the name with doubt 
as 2 synonym of Hrigeron ochroleucus Nutt. 
Aster columbianus sp. nov. 
Stems slender, erect, 40 to 70 cm. high, somewhat puberulent, much branched 
above and bearing numerous crowded small heads; leaves linear, entire, acute, 
sessile by a broad base, 5 to 8 cm. long, glabrous, or nearly so, except the 
scabrous-ciliate margin; reduced leaves of the branches very numerous and 
more strongly ciliate; involucre turbinate, 5 mm. high; bracts linear, in about 
3 series, somewhat squarrose, the outer cuspidate and ciliate, the inner acute 
and not ciliate, all green at the tips; rays violet, 4 to 5 mm. long; pappus 
sordid; achenes canescent. 
Type in the U. S. National Herbarium, collected at Waitsburg Washington, 
by R. M. Horner. 
In Contributions from the U. S. National Herbarium, volume 11,’ this was 
referred to A. amethystinus Nutt., but that species has the leaves scabrous on 
both surfaces. The whole aspect is that of Aster campestris Nutt., but that has 
the inflorescence glandular. 
The species has been collected as follows: 
WASHINGTON: Wawawai, Piper 1602; Waitsburg, Horner 559 (type), 627; 
Okanogan River, Sereno Watson 191. 
OREGON: Wallowa Mountains, Piper 2513. 
Aster delectus sp. nov. 
Stems puberulent, 10 to 30 cm. high; leaves entire, lanceolate or oblanceolate, 
acute, puberulent especially beneath, sessile by a narrowed base or the lower 
with margined petioles; inflorescence corymbiform, of 3 to 15 rather crowded 
small heads; involucre rather hemispheric, 5 mm. high; bracts pubescent but 
not ciliate, mostly obtuse, in about 3 series; rays violet, 5 mm. long; pappus 
sordid. 
Type in U. S. National Herbarium, no. 411493, collected in a moist meadow 
near the Sycan River, Klamath County, Oregon, August 15, 1901, by W. C. 
Cusick (no. 2761). 
A close ally of A. occidentalis Nutt. 
Aster paludicola sp. nov. 
Glabrous throughout, the rather slender stems 60 to 80 em. high; leaves 
linear-lanceolate, sessile by a slightly narrowed base, entire, acute, 8 to 12 em. 
long, 5 to 7 mm. wide, only the midnerve evident; inflorescence loosely cymose, 
the medium-sized heads few; involucre 6 to 8 mm. high, of 20 to 25 loose bracts 
in about three indistinct series; bracts glabrous, acute, green at tip, chartaceous 
below the middle; rays violet, 8 mm. long; pappus sordid achenes canescent. 
Type in the U. 8. National Herbarium, no, 620391, collected in Darlingtonia 
swamps, at Hight Dollar Mountain, Josephine County, Oregon, August 15, 1907, 
by C. V. Piper. 
The species is remarkable for the few bracts to the involucre. Its alliance 
is apparently with Aster occidentalis Nutt. 
‘Fl. Bor. Amer, 2: 21, 1834, * Page 572. 
