154 JUNGERMANNIACEAE 
dition of Scapania umbrosa. Collected by Professor Macoun on 
Mt. Mark, Vancouver Island. 
Our plants appear to agree with the European in all the more 
important details, yet the marginal teeth of the leaves are rather 
larger and more numerous than in most of the European ѕресі- 
mens examined, the cuticle less distinctly roughened, the dorsal 
lobes a little less closely imbricated, and the perianth is sometimes 
longer. 
It is very probable, as was first pointed out by Lindberg,* that 
Jungermannia convexa Scop. is identical with J. umbrosa Schrad., 
though the perianths (“thecae”) were described by Scopoli as 
oval, and dentate at the apex, while those of Scapania umbrosa 
are oblong, with an entire or repand mouth. We have been in- 
formed by Prof. Briosi that the Scopoli collection is not preserved 
at Pavia and as we have been unable to locate it, we prefer to 
retain for this species a name concerning the correct application of 
which we can have no doubts. 
6. SCAPANIA сокта (Mart.) Dumort. Rec. d'Obs. Jung. 14. 1835. 
Jungermannia curta Mart. Fl. Crypt. Erlang. 148. pl. 4. f. 24. 
1817. 
Bright- to dark-green, sometimes brownish, loosely gregarious 
or in thin mostly inconspicuous mats: stems ascending, 4-15 mm. 
long, .1—.35 mm. thick, simple or innovating above: leaves rather 
soft, usually increasing in size toward the stem-apex, bilobed to 
about the middle, the fold outwardly rounded or acute, rarely with 
gle or in groups of 2 or 3: perianth long-obovate, 
. X I-L8 mm, the mouth shortly ciliate-dentate, rarely 
pand. 
- "Muse Scand. 6, 8g  ——————————————————— 
1897. 
