NOVA SCOTIAN MOSSES—SOMMERS. 13 
exposed to sunlight, leaves inconspicuous, fruiting in early spring 
and through the summer. 
OrpDER.—Polytrichiei, Brid. & Sch. 
PoLYTRICHUM, commune, L., fruiting in June. 
P. JUNIPIRINUM, Hedw., fruiting in June. 
ATRICHUM, undulatum, P. Beauv., common, fruiting in autumn, 
forming dense green patches. 
OrpER.—Tetraphidei, Br. & Schimp. 
TETRAPHIS, pellucida, Hedw. 
Very common in shady woods and on roots of trees, fruiting 
in summer and autumn, easily recognized by the four-toothed 
peristome and the cup-shaped cluster of leaves surrounding the 
gems. 
OrpDER.—Grimmiei, Br, & Schimp. 
ScHISTIDIUM, maritimum, Br. & Schimp. 
Leaves rigid, strongly acuminate nerve excurrent, much 
crowded erectopatent, sporangium obovato truncate, lid very 
large, shortly rostrate, fruiting in autumn, growing on granite 
boulders, dark olive green, pulvinate. 
OrpER.—Hedwigiacei, Br. & Schimp. 
HeEpwWIGIA, ciliata, Hook & Wils. 
Branches fastigiate, leaves imbricated, oblong lanceolate, spor- 
angium globose immersed, veil bairy pericheetial leaves ciliated, 
lid plano convex, with a central papilla, variable, common on 
granite boulders, lurid green pulvinate, fruiting in autumn and 
through the winter. 
ArT I]—On Nova Scotian Frerns.—By Rev. E. N. BALL, 
Maccan, Communicated by Dr. Lawson. 
(Read November 11, 1878.) 
~ 
I HAVE been examining more closely the varieties of Aspid- 
ium Spinulosum (Gray) this Summer, and offer the following as 
my more matured observation. 
