1895. ] Distribution of the N. Am, Marchantiacee. 61 
been sent from British Columbia by Macoun, and it will 
be found doubtless throughout the entire Pacific region. 
3. Asterella Bolanderi (Aust.), nom. nov. 
Fimbriaria Bolanderi Aust. Proc. Phila. Acad. 1869: 230. 1869. 
California: San Rafael, Bolander,; Auburn, Bolander; Mill 
Valley, Howe. 
The specimens collected by Coville on the Death Valley 
Expedition and referred by me to this species are rather A 
gracilis. 
4. Asterella violacea (Aust.), nom. nov. 
Fimbriaria violacea Aust. Bull. Torr. Bot. Club 3: 17. 1872. 
Central California, Bolander, Coulter, Howe. 
5. Asterella nudata (M. A. Howe), nom. nov. — 
Fimbriaria nudata M. A. Howe, Erythea 1: 112. 1893. 
Central and Southern California: Mill Valley, Marin co., 
Howe; Jackson, Amador co., Howe; Pasadena, Los Angeles 
co., McClatchie. A very well marked species. 
6. ASTERELLA FRAGRANS (Nees) Trevis. Rend. R. Ist. 
Lomb. Sc. II. 7: 10. 1874. 
Marchantia fragrans Schleich. n. n. in Exsicc. cent. III. 64. 
Fimbriaria fragrans Nees, Hor. Phys. Berol. 45. 1820. 
New Mexico, Fendler; Idaho, Letberg; Telegraph Creek, 
near Alaska, Dawson. Remarkable for its profuse white 
scales that extend far beyond the margin. 
7. Asterella gracilis (Web. f.), nom. nov. 
Marchantia pilosa Wahl. F|. Lapp. 339. 1812; not AZ. pilosa Horn. 
Fl. Dan. 8: p/. 1426. 1810. 
Marchantia gracilis Web. f. Hist. Musc. Hepat. Prodr. 105. 1815. 
wher Fag gracilis Lindb. Not. pro Fauna et Flora Fenn. 10: 282. 
Fimbriaria pilosa Tay\. Trans. Linn. Soc. 17: 386. 1837. 
Asterella pilosa Trevis. Rend. R. Ist. Lomb. Sc. II. 7: 10. 1874. 
The synonymy of this species presents a complicated tangle, 
and the species has had the misfortune to be over much 
named. Limpricht asserts that Marchantia Ludwigit 
Schwaegr. Hist. Musc. Hepat. Prodr. 33. 1814 is identical 
with this species, as had been suggested before by Lindberg. 
If this proves true, then the name of the species will be As- 
terella Ludwigii (Schwaegr.). Until this can be determined 
the name will have to be as above, since the specific name 
pilosa is untenable as a homonym. 
British Columbia, Macoun; Vancouver Island, Macoun,; 
