BRIEFER ‘ARTICLES. 
NOTES ON THE GENUS BARTOWMIA. 
In August 1894, while collecting near Holyrood, on Conception 
Bay, Newfoundland, Mr. H. von Schrenk and the writer secured some 
sixty or more individuals of a Bartonia. These inconspicuous plants 
were collected in a small sphagnum bog near South Arm river, and in 
the field were taken for B. ¢ene/la Willd; but, when later compared 
with copious herbarium material of this species, the Newfoundland 
plant was found to differ in several particulars. From its alternate 
leaf scales and relatively long corolla (twice the length of the calyx), 
it was then regarded as the Centaurella Moseri* of Steudel and Hoch- 
stetter, and was accordingly distributed as Bartonia Moseri Rob. & 
Schrenk. But before an account of the Newfoundland collecting 
expedition was published it became doubtful whether the Bartonia was _ 
after all identical with the plants of Moser and Drummond upon which 
Centaurella Moseri was founded. Therefore, to avoid making im 
print the new combination Bartonia Moseri based upon indefinite 
material, the plant was treated as follows :? 
“BaRTONIA SP. (Centaurella Moseri, Steud. & Hochst., acc. to 
Griseb., in DC. Prodr.g: 121). A plant which appears to represent, 
at least in part, this rare and poorly understood species, was discovered 
in a small bog near Holyrood (5). The species was first described 
from specimens collected by Moser at Saltsburg, Pa., and Drummond | 
at Covington, La. In his treatment of the genus in DeCandolle’s- 
Prodromus, however, Grisebach includes in it, with the mark of 
affirmation, a specimen collected by La Pylaie in Newfoundland. As 
the present plant agrees with Grisebach’s description as regards alter 
nate leaf scales and in having the corolla twice as long as the calyx, 
there can be little doubt that it is the plant of La Pylaie. It is, how” 
ever, of lower growth, less branched, and less numerously flowered 
than Drummond’s specimen — differences perhaps wholly due to the 
*First published in Griseb. Gen. et Sp. Gentianearum, 308. 1839. 
*RoBINSON & SCHRENK: Notes on the Flora of Newfoundland, Canad. Re 
Sci. 1896, p. 20 of reprint, 
46 [yuLy 
