1897 | NORTH AMERICAN SPECIES OF CHRYSOSPLENIUM 275 
15 to 36™" wide, crenations 6 to 15, sometimes overlapping, 
broad and truncate or retuse, dull above, pale beneath: cells of 
leaves and calyx generally developing brown bodies giving the 
appearance of pellucid dots: stamens 8: seeds indefinite. 
Europe and Asia. 
++ ++ Stamens 4: leaves minute, shining, indistinctly 
veined, not spotted. 
CHRYSOSPLENIUM TETRANDRUM Fries, Bot. Notis. 193. 1858. 
Chrysosplenium alternifolium tetrandrum Lund, Bull. Acad. Sci. St. 
Petersb. 23: 343. 1877 
Stems 1.2 to 7.5™ high, very slender, 1 to 3-leaved: leaves 
thickish, with indistinct veins; radical leaves very small, 4 to 
11™™" wide, crenations 3 to 7, more or less rounded, shining above, 
paler beneath: cells of leaves developing no dark bodies: 
stamens 4, opposite the sepals: seeds small, numerous (some- 
times 50 or more). 
Arctic regions. In America as far south as Colorado. 
In the United States there are only two stations recorded for this species. 
One of these is in Colorado, where the plant was collected by Hall and 
Harbour in 1862 (no. 576). he plant, curiously enough, has not been 
lected a number of times by Professor E. W. D. Holway. This latter form 
May yet prove distinct. It is somewhat larger, with slightly different leaves, 
and with six or seven stamens. 
+ + Rootstock thick: stolons wanting: flowers reddish: 
disk prominent: seeds few. 
m Beringianum Rose, sp. nov. 
eas 2.5 to 5™ long (?), creeping, sending off many 
long fibrous roots; radical leaves and stems several, spreading 
and forming a dense rosette: radical leaves small; petiole 
‘Slender, 1.3 to 4.5°™ long, broader at base, the margins (espe- 
cially below) ciliate with long purplish hairs; blade reniform, 6 
_to 11™™" broad, 4 to 5-crenate, crenations sometimes gland- 
tipped, thickish, pale and glabrous below, dark green and glab- 
Tous or somewhat pilose above: stem 2.5 to 5™ high, naked or 
— a eats leaf below the involucre; involucral leaves 
