1906] Evans, Notes on New England Hepaticae, — IV 35 



New Hampshire {A. W. E.). In a note on Lophozia bicrenata' the 

 writer made the statement that the true L. excisa, with which L. 

 bicrenata has been confused in North America, had not been definitely 

 reported from New England. The specimens recorded above, however, 

 were already collected but through an error had been referred to 

 another species. L. excisa agrees with L. bicrenata in its paroicous 

 inflorescence. It is distinguished by its larger size and more delicate 

 texture, the leaf-cells being thin-walled, except for the small trigones 

 at the angles, instead of being uniformly thick-walled throughout. It 

 also lacks the brownish or reddish pigmentation and the peculiar aro- 

 matic odor which are usually associated with L. bicrenata. In general 

 appearance it bears considerable resemblance to small forms of /.. ven- 

 tricosa. Its paroicous inflorescence will at once separate it from this 

 species, and it is usually easy to recognize the perigonial bracts, even 

 after the antheridia have disappeared, by the small pocket or inflexed 

 tooth at the antical base. In spite of the uncertainty connected with 

 the original J. excisa of Dickson, most recent writers associate this 

 name with the present plant. 



2. Lophozia Muelleri (Nees) Dumort. Recueil d'Obs. sur les 

 Jung. 17. 1835. Jungermannia Muelleri Nees; Lindenberg, Nova 

 Acta Acad. Caes. Leop.-Carol. 14, suppl.: 39. 1829. J. acuta 

 Lindenb. 1. c. 88 (in part). J. I/7vprto^ Hiiben. Flora 15: 305. 1832. 

 Lophozia acuta Dumort. Recueil d'Obs. sur les Jung. 17. 1835 (m 

 part). J. Laurentiana DeNot. :Mem. Accad. Tor. II. 18: 497. /. 10. 

 1859. Lophozia Libertae Cogn. Bull. Soc. roy. Bot. de Belgique 10: 

 278. 1872. J. bantriensis, vars. Muelleri and acuta Lindb. Acta 

 Soc Sci. Fenn. 10: 528. 1875. J. llornschuchinna P Muelleri 

 Massal. Ann. R. 1st. Bot. di Roma 3: (8). 1888. On limestone 

 rocks. Banks of the Housatonic River (opposite Falls Village), Salis- 

 bury, Connecticut (.4. W. E.). Already reported from Miquelon 

 Island, from a few stations in Canada and from Colorado, but appar- 

 ently new to the eastern United States. Lophozia Muelleri is a member 

 of a group of closely related species which have long been a puzzle to 

 European hepaticologists. The group has recently been studied by 

 Schiffner," who ascribes to it the following characters: leaves always 

 bifid; underleaves more or less developed even on slender stems; 

 peric'haetial bracts usually but little differentiated from the leaves; 



1 Rhodora 4: 209. 1902. 



» Verhandl. der k. k. zool.-botan. Gesellsch. in Wien 64: 381-405. 1904. 



