( 108 ) 
Sphagnum Girgensohnii Russow. Locality of preceding 
(506). 
Sphagnum fuscum (Schimp.) Klinggr. In swamps about 
Dawson. In fine fruit the latter part of August. Often 
used in large quantities for filling the spaces between the 
logs of buildings (50r). 
Sphagnum jfimbriatum Wils. In swamps about Dawson. 
Fruiting. Rather rare (502). 
Sphagnum teres squarrosulum (Lesq.) Schp. Cafion City, 
Dyea Creek. On damp mountain side (509). 
Sphagnum squarrosum Pers. Klondike River bottom (513). 
Sphagnum squarrosum subsquarrosum Warns. Swamps 
about Dawson. Fruiting (508). 
Sphagnum medium Limpr. Abundantly fruiting in swamps 
and on cold, wet hillsides about Dawson. ‘This species is 
also largely used in the building of log houses (516). 
Andreaea petrophila Ehrh. Common about Lake Linde- 
man. In fine fruit May 17. The plants are quite variable 
in color and length of stem. The leaves are papillose on 
both sides but most distinctly so on the back in upper part. 
The cell walls are very thick, the upper cells measure .008 
x .008 mm. to .oo8 x .o12 mm., below they are 3-4 times 
longer than wide (520). 
Andreaea petrophila acuminata Schimp. Lake Linde- 
man. All the specimens examined seemed to be dioicous. 
The papillae vary greatly on different leaves, often being very 
prominent on young leaves and scarcely visible on old spec- 
imens (523). 
Andreaca petrophila parvifolia (Muell.). Sheep camp, 
Dyea Creek. These specimens are from the original locality 
of parvifolia and agree with a bit of the original collection 
from Herb. Mueller. They differ from fetrophila in having 
rather smaller leaves and mostly dioicous flowers, the ¢ 
plants being more branching than the 9 and bearing three or 
four antheridial buds; paroicous plants occur, however, and 
there seems to be no reason for considering it other than a 
variety as above given (519). 
