OF THE FORTY-NINTH PARALLEL OF LATITUDE. 53 
M. LEVIGATA, Schrad. 
Hab. Kettle Falls, Columbia River, Lyall, 
M. PLATYPHYLLOIDEA, Nees. 
Hab. Fort Colville, Lyall. 
PriLipium, Nees. 
P. cILIARE, Ehrh. 
Hab. Fort Colville, Lyall. 
CHZETOPSIS, gen. nov. 
Perianthium terminale, obovatum, tubulosum, ore connivente 
ciliato. Folia et amphigastria palmatifida. 
C. TRICHOPHYLLA, Linn. 
Hab. Cascade Mountains, Lyall. 
FRULLANIA, Raddi. 
F. TAMARISCI, Linn. 
Hab. Vancouver and Orcas Islands, Lyall. Collected also on the N.W. 
coast by Menzies and Douglas. 
The specimens are very slender, and at first sight would scarcely 
be supposed to belong to the same species as the European forms. 
The leaves are rounded, in the fertile stems acute, in the male 
plants with the point inflexed, and the coloured cells in some 
of the leaves are only found after careful search. No American 
examples have yet been seen which can compare with British ones 
in size. 
METZGERIA, Raddi. 
M. PUBESCENS, Schrank. 
Hab. British Columbia, Lyall. 
SARCOMITRIUM, Corda. 
S. PALMATUM, Hedw. 
Hab. Fort Colville, Lyall. 
MARCHANTIA, Linn. 
M. POLYMORPHA, Linn. 
Hab. Saskatchewan and Rocky Mountains, Bourgeau. Fort Colville 
and Sinyakwateen, Lyall. 
FEGATELLA, Raddi. 
F. conica, Linn. 
Hab. British Columbia, near Fort Colville, Lyall. 
