49 Morten P. PoRrsILD. 
more appropriate to consider it a local variety, fixed genetically, and 
hence I propose as its name: 
O. quadripetalus GiLie., var. microphyllus (LANGE) n. c. 
It differs from the main form chiefly in its dimensions: free, leaf- 
bearing shoots, generally 2—3 cm., only exceptionally (when not growing 
on Sphagnum) up to 2 dm. long. Leaves with strongly revolute margins 
(more than in the type) (3—)4—5(—7) mm. long, 2—2.5 mm. broad, 
elliptic-ovate. (In O. microcarpus the leaves are nearly of the same size 
but different in form, being distinctly broadest near the base and more 
pointed). Peduncles single, rarely in pairs, brownish-red, (10—)12—15 
(—18) mm. long, densely covered by short whitish hairs, especially 
upwards, nearly as dense as in ©. macrocarpus Pursu. Calyx-lobes 
with red margins, finally entirely red, faintly ciliate, at the top de- 
pressed and in the median line apiculate. (WARMING l.c., fig. 96 D). 
(In the type they are evenly rounded-obtuse (WARMING I. c., fig. 57 A), 
often green throughout). Flowers about half the size of the type, equal- 
ling those of O. microcarpus. Petals deep red, (in O. quadripetalus whitish 
with a not well-defined pink midline; in ©. microcarpus this line is 
deeper coloured and sharper defined). Filaments dark chocolate, pub- 
escent on margins. Anthers brown, glabrous, tubes slightly longer than 
the anthers, shiny, golden-bronze-coloured. Style red, in the expanded 
flower shorter than the tubes but finally barely overtopping them. 
Berries deep red (like those of Vaccinium Vitis Idaea, v. pumilum), al- 
ways globular, ab. 5mm. in diameter. 
V. 
RANUNCULUS PYGMÆUS WAHL. 
VAR. LANGEANA NATH. 
From alpine situations in Gaspé County, Québec, M. L. FERNALD 
has described (Rhodora 1917, p. 137) a peculiar variety of R. pygmaeus 
which is called var. petiolulatus n. var. 
foliis radicalibus pedatim divisis, foliolis 3 petiolulatis rhomboideo-obovatis pal- 
matis laciniis 3—5 oblongis vel valde divisis; capitulis fructiferis 5—7.5 mm. longis 
