IIEPATICyE COLLECTED IN ALASKA 29I 



& K. 666)', Port Wells (T. 142S). Also collected by the Drs. 

 Kraiise, by Miss Cooley near Juneau, and by Funston at Coal Creek 

 Hill, Yukon River district. 



3. Marchantia polymorpha L. 



Glacier Bay (T. 1409, C. & K. 757) ; Orca (T. 140S) ; St. Paul 

 Island (T. 1413) ; St. Matthew Island (T. 1401); Plall Island*(T. 

 1414). This cosmopolitan species has also been collected by Rothrock, 

 bv Bischoff, by the Drs. Krause, and by Miss Cooley. 



Only 3 Marchantiacece occur in the collections. Of the other 4 

 species, already reported from Alaska, 2 — the doubtful Flmbriaria 

 tenella and Grimaldia fragrans (Balb.) Corda — have already been 

 mentioned. The other 2 species are noted by Dr. Howe : one of these 

 is Asterclla fragrans (Schleich.) Trevis.,^ which is ascribed simply to 

 Alaska ; the other is a species of Sauteria^ probably S. alpiiia (Nees 

 & Bischoff) Nees, ^ which was collected by Mr. Kincaid on St. Paul 

 Island in 1S97. * 



METZGERIACE^. 



4. Aneura latifrons Lindb. 



Mt. Verstovia (C. & K. 927, in part) ; Farragut Bay (C. «& K. 

 454, in part, B. & C. 61 8, in part). New to Alaska. 



5. Pallavicinia hibernica (Hook.) S. F. Gray, Nat. Ar. Brit. PI. 



2:684. 1821.^ 



Jungennannia hibernica Hook. Brit. Jung.//. "/S. 1816. 

 DilcBtia hibernica DUMORT. Comm. hot. 114. 1822. 



Mcerckia hibernica Gottsche ; Rabenhorst, Hep. eur. exsic. no. 121. i860 

 (in obs. BlytticB lyellii). 



Dioicous : $ and $ plants mixed together, green : thallus pros- 

 trate, often creeping among other bryophytes, dichotomous, of about 

 the same width throvighout ; midrib 15-20 cells thick in the middle 

 on robust plants, strongly convex below, slightly concave above, nar- 

 rowing rather abruptly on each side into a broad, translucent wing a 

 single cell thick ; margins of the wings more or less crispate-undu- 

 late ; cells of the thallus evei'ywhere with thin and colorless walls ex- 

 cept in the postical part of the midrib, where they are slightly thicker 

 and brownish : rhizoids numerous, white : archegonia in groups of 10 

 to 20 on the vipper surface of the thallus near the apex, surrounded 



iMem. Torr. Bot. Club, 7 : 39. 1899. 

 *!.. c, 56. 



'A fuller synonymy is given by L/indberg, Not. ur Sallsk. pro F. et Fl. Feun. 

 9 : 15. 1868. 



