OF THE FORTY-NINTH PARALLEL OF LATITUDE. 51 
LiocuHizxNa, Nees. 
L. LANCEOLATA, Nees, 
Hab. Mooyie River, British Columbia, Lyall. 
SOLENOSTOMA, gen. NOV. 
Perianthium terminale, obovatum, superne quinqueplicatum, 
ore in tubulum brevem contracto rostelliformi. Folia di- 
sticha, integra. Amphigastria parva obsoletave. 
S. TERSUM, (Jungermannia) Nees. 
Hab. Galton Mountains, Lyall. 
Two species only of this group are yet certainly known from 
the whole of N. America. The other species, S. crenulatum (Jun- 
germannia, Sm.), is indicated by Sullivant in Alabama. 
This genus, long confounded with Jungermannia, differs from it 
in the form and plication of the perianth, which is similar to that 
of Lejeunia and Frullania, and only becomes dentate at the apex 
by the bursting through of the capsule. 
LxroscxPuvus, Mitten. 
L. TAvLoni, Hook. 
Hab. Cascade Mountains, Lyall. 
PLAGIOCHILA, Nees et Mont. 
P. ASPLENIOIDES (Linn.). 
Hab. Fort Colville, Lyall. 
LoPHOCOLEA, Nees. 
L. HETEROPHYLLA, Hook. | 
Hab. Fort Colville, Lyall. 
The few fragments supposed to belong to this species are merely 
sufficient to indicate the presence of something very nearly allied, 
if not identical. 
TRIGONANTHUS, Spruce, in Trans. Bot. Soc. Edin. vol. iii. et in 
Ann. & Mag. Nat. Hist. s. 2. vol. v. p. 207. 
(Jungermannie bicuspides, Synops. Hepat.) 
T. BICUSPIDATUS, Linn. : 
Hab. Rocky Mountains, Lyall. ; 
T. DIVARICATUS, Smith, Eng. Bot. t. 719. Jungermannia Starkii, Fk. 
Synops. Hepat. p. 134. 
Hab. Cascade Mountains, British Columbia, Lyall. 
These specimens have stipules, as is usual i in the form referred 
to J. Starkis. 
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