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CocKERELL: NortH AMERICAN SPECIES OF HyMENoxys 507 
» Hymenoxys chrysanthemoides multiflora (Buckley) 
Phileozera multiflora Buckley, Proc. Acad. Nat. Sci. Phila. 
1861: 459. 1862. 
Picradenia multiflora Greene, Pittonia, 3: 273. 1808. 
This, the smallest member of its series, was thus described by 
Buckley : 
“Plant 4-6 inches high, with numerous erect flowering branches, 
which are destitute of leaves near the flowers; leaves about half 
a line wide, elongated, and 3-6 parted, with opposite or alternate 
segments ; whole plant sparingly pubescent; flowers 3—4 lines in 
diameter ; the lower pappus of many white hairs is at the base of, 
and about equal in length to the achenia; palea nearly as long as 
the achenia which they crown. The flowers have a resemblance 
to those of Riddellia.”’ The type is from prairies north of Fort 
Belknap, Texas, in May. Specimens are stated to be in the 
herbaria of the Philadelphia Academy, and of Elias Durand. 
The specimens before me are separable into two groups or 
series; A, with larger heads and ranker, sometimes confervoid 
foliage, possibly plants of damper ground; and B, with numerous 
small heads on usually rigid stems, the plant less inclined to 
spread, these being apparently plants of dry ground. I am not 
sure that these are more than states of one thing, and they are not 
Separated by any real interval. At the same time, their distribu- 
tion is suggestive of true racial differentiation. 
Form A. 
Trxas.— Staked Plains, May 1899, W. LZ. Bray ; Sandy plains, 
Taylor Co., April 1882, 7. Reverchon; between the Frio and 
Nueces Rivers, on the road to Laredo, Jan. 27 and 28, 1880, £. 
Palmer ; sandy western plains, headwaters of the Llano River, 
May, 1885, 7. Reverchon; a fairly uniform lot, except Palmer's 
plant, which has short curled much-dissected leaves, and looks 
curiously like some species of Batrachium. It perhaps deserves a 
varietal name. 
Form B. 
Texas.— Oldham Co., Aug. 13, 1891, M. A. Carleton. 
New Mexico.— On the upper Canadian, April, 1848, A. Gor- 
don ; water holes in plains, near McCarty’s Ranch, July, 1880, 
