SOME RUDBECKIA SEGREGATES. 175 
R. HIRTA, Linn. Sp. Pl. p. 907. Perennial, 1 to 2 feet 
high, stoutish, erect, branching: stem, striate, hirsute: 
basal leaves oblong-spatulate, 21 to 4 inches long, tapering 
to margined petioles about 13 to 2 inches long; cauline 
leaves lanceolate-spatulate sessile by a dilated and half 
clasping base; all 3-nerved obtuse, entire or remotely 
serrate-toothed, strigose-hispid: peduncles 6 to 8 inches 
long, hirsute: involucral bracts about 1 inch long, oblong- 
linear, hirsute, in age thickened and prominently pustulate : 
rays, 12 to 15, oblong, orange-yellow: disk conical, dark 
purple, style tips slender-subulate: achenes quadrangular: 
chaff with hispidulous summits, glabrous below: pappus 
none. 
The stout branching plant best answering to the descrip- 
tion and figure of Dillenius is common in the District of 
Columbia and elsewhere both eastward and westward; and 
I found it plentiful, last summer, near Lake George in 
northern New York. It is sometimes nearly simple and 
quite slender, with narrow leaves. Such forms were col- 
lected at Green's Farms, Conn., by C. L. Pollard in 1894: 
in Minnesota by W. D. Frost in 1892: in Iowa by B. Fink 
(No. 285) in 1894; and in Buckhannon, W. Va. by W. M. 
Pollock in 1895. 
Messrs. Britton and Brown in their Illustrated Flora 
(iii, 416) give the following data concerning the habitat of 
this plant: “In fields, Quebec to western Ontario and the 
Northwest Territory, South Florida, Carolina and Texas. 
Native only on the western prairies. Widely distributed 
in the East, as a weed." Now, as regards this last state- 
ment, which is certainly very erroneous, it is to be noted 
that, in the year 1732, when Dillenius published this 
species, he said that its habitat was America, especially 
Maryland, Virginia and Carolina. And it seems ineumbent 
8856—2 
