194 Rhodora [NovEMBER 
ground between Three Rivers and Champlain. It was then in full 
flower and I am quite convinced that it was Aster linariifolius.” 
The plant from the Ste. Anne River may be called 
ASTER LINARIIFOLIUS L., var. Victorinii, n. var., humilis 1-1.6 dm. 
altus; foliis adscendentibus vel patentibus confertis viridibus oblongo- 
linearibus, longioribus 1.3-1.8 em. longis 2-4 mm. latis, apice rotun- 
datis, margine ciliolatis; capitulis 1-6; involucris 8-10 mm. altis; 
squamis subherbaceis oblongo-linearibus ciliatis, apice rotundatis vel 
obtusis. QUEBEC: on rocky banks of River Ste. Anne, St. Raymond, 
Co. Portneuf, August, 1914, Brother Marie-Victorin, no. 618 (TYPE in 
Gray Herb.). 
Differing from typical Aster linariifolius in its more crowded mostly 
ascending greener and less rigid short round-tipped leaves and in the 
more herbaceous bracts, the outer oblong-linear. In typical A. linarii- 
folius from New England southward and southwestward, the less 
crowded spreading or spreading-ascending linear or linear-spatulate 
leaves are rigid and more pointed, the larger leaves 2-4 cm. long, and 
at least the outer linear-lanceolate bracts of the involucre taper gradu- 
ally to acute tips. 
GRAY HERBARIUM. 
A FORM OF POTENTILLA TRIDENTATA. 
ARTHUR STANLEY PEASE. 
In a dry pasture about four and a half miles south of the village of 
West Milan, New Hampshire, I collected, on 20 August, 1912, plants 
of Potentilla tridentata Ait. which appear noteworthy from the rather 
abundant hirsuteness of both surfaces of the leaves. A comparison 
with material of this species in the Gray Herbarium and the Herbarium 
of the New England Botanical Club has disclosed other specimens 
showing, in greater or less degree, the same tendency. This peculiarity 
is not mentioned by Aiton in his brief description of the plant (a 
native of Newfoundland) introduced at Kew in 1776,' nor shown in 
1 Hort. Kew. (1789), ii, 216: '' P. foliis ternatis cuneiformibus apice trifldis.'' 
