SOME NEW OR CRITICAL RANUNCULI. 145 
commonly received as the R. fascicularis, Muhl. And from 
a young and not quite typical state of this Schlechtendal 
figured what he supposed to be R. fascicularis. But this 
plant, with its ample tuft of fibrous roots, its large dimen- 
ions, and markedly trifoliolate leaves, was made by Muhlen- 
berg, as Schlechtendal himself attests, a species distinct from 
R. fascicularis, and was distributed by him under the name 
of R. trifoliatus. I believe it is more commonly confused 
with R. hispidus; to which it is, indeed, more nearly allied 
than to R.fascicularis. I myself, while collecting it last 
season on the higher mountains of western Maryland, sup- 
posed it to be some nearly glabrous relative of R. hispidus; 
not at all apprehending that it could have passed with any 
one for R. fascicularis. Yet Dr. Britton has distributed it 
from Staten Island under this name. 
R. apricus. Dwarf perennial, near R. fascicularis, but 
even smaller, the fruiting plant often only 2 or 3 inches 
high ; roots equally thick and fusiform but rather shorter: 
appressed pubescence not obscure: leaves parted into 5, or 
more commonly only 8, linear or linear-oblong entire or 3- 
toothed segments, the terminal one often stalked, the others 
sessile: head of achenes smaller, and the individual achene 
smaller and relatively thicker than in R. fascicularis, broadly 
margined and indistinctly somewhat tricarinate on the back, 
the beak very slender, almost straight. 
Near Sapulpa, Indian Territory, 29 April, 1895, B. F. 
Bush. Said to be common on the prairies. Much like R. 
fascicularis as to the root, otherwise thoroughly distinct. 
R. vicrNALIs. Near R. cardiophyllus, but small, slender, 
the corollas proportionately large: stem solitary, erect, 3 to 
5 inches high, from a fascicle of long and rather fleshy 
white fibrous roots: lowest leaves of orbicular outline but 
deeply cleft or parted into about 7 approximate lobes, then 
again 3-cleft, the middle cauline pedately parted into 7 
