1910] Heller—Mammals: Alaska Expedition, 1908. 349 
PARTIAL LIST OF PLANTS, CHIEFLY SHRUBS AND 
TREES. 
(Unless otherwise stated, the determinations of plants are by 
Mr: T. S. Brandegee. The specimens on which this list is based 
are on file at the Herbarium of the University of California. 
The interpolated numbers are the collector’s field numbers accom- 
panying the specimens. ) 
Hylocomium. Moss. 
Two species of this genus, H. splendens (no. 53) and H. 
loreum (no. 42) form the great bulk of the moss which thickly 
covers the floor of the forest and the trunks and lower branches 
of the trees. (Determined by Professor W. A. Setchell.) 
Blechnum spicant (l.) Wither. Deer Fern. 
' A common species in the coniferous forests throughout the 
region. (No. 52.) 
Athyrium filix femina (L.) Roth. Fern. 
An abundant species in the forest and on recent landslips. 
In the latter situations it occurs in heavy masses, attaining a 
height of four feet. It is apparently one of the first plants to 
take possession of these deforested areas. (No. 30.) 
Equisetum pratense Ehrh. (?). Thicket Horsetail. 
Oceurs rather sparingly about the edges of the forest and 
along streams. (No. 27.) 
Chamaecyparis nootkatensis (lamb) Spach. Yellow Cedar. 
Near the northeast point of Hinchinbrook Island a consider- 
able forest of this tree flourishes close to the shore at a low 
altitude. It was not noted elsewhere, although reported from 
Hawkins and Glacier islands. This tree seems to be of very 
sporadie occurrence throughout its whole Alaskan range. The 
specimens collected have flatter foliage, resembling Thuya plicata 
in this respect. It is probable that these forests, which are 
widely isolated, represent a form of this species. (No. 4; deter- 
mined by Professor H. M. Hall.) 
Tsuga heterophylla (Raf.) Sarg. Western Hemlock. 
The western hemlock here reaches its northern hmit but 
retains remarkable uniformity in distribution. It is confined 
