122 AMERICAN FERN JOURNAL 
nearly plane, but a little convex in the inferior ones, 
the under surface somewhat convex, rather glossy, not 
firm in living specimens but moderately rigid when dry, 
green or yellowish green; midrib not conspicuous.” 
Asa Gray labeled a specimen of this plant, collected 
in Japan by C. Wright, “Lycopodium Selago L. var.,” 
indicating that he felt it, with its abundant setaceous 
yielding leaves, to be different from L. Selago and its 
varieties, as he knew them. 
The specimens cited below are in the Gray Herbarium. — 
JAPAN: Sapporo, June, 1898; Hakodadi Mountains, 
C. Wright, no. 1, Herbarium of the U. 8. North Pacific 
Exploring Expedition under Commanders Ringgold 
and Rodgers, 1853-56. 
AuasKa: Sitka, Ferd. Bischoff, Western Union Ex- 
tension Telegraph Exploring Expedition, 1865-66 (tran- 
sitional material). 
British Corumpia: Ucluelet, May, 1907, “ear? 
Fraser. 
Rocky Mountains: Drummond. 
Harrop St. JOHN. 
TWo SERIOUS FERN pESTs.—Ferns are ordinarily 1M 
mune to serious damage both from insects and from 
plant diseases. The greenhouse varieties suffer to some 
extent from mealy bug, scale, white fly, and a few other 
common insects, but serious damage can usually be 
avoided if sufficient care is taken. Adiantums som® 
times have their foliage damaged by eel worms. Less 
bird’s nest fern often develops brown streaks in si 
leaves through an unidentified cause. Fern prothallia 
are very subject to damping off if the conditions VF 
from the narrow limits which these capricious plants 
demand. Hardy ferns have even fewer enemies: In 
fifteen to twenty years of interest in ferns, I remember 
seeing only one wild fern afflicted with a plant diseas? 
He ee Pe ie oe ae gOS TS PON pe cen TY ee Pa EE Fore 
