1904] Evans,— Notes on New England Hepaticae,— II 167 



2. Marsupella aquatica (Nees) Schiffn. Lotos, 44 : 267. 1896. 



/. emarginata, var. aquatica Lindenb. Nova Acta Acad. Caes. Leop.- 



Carol. 14, ^uppL: 75. 1829 (not Jimgermatmia aquatica Schrank, 



1789).! Sarcoscyphus Ehrharti, var. aquaticiis Nees, Naturgeschichte 



der europ. Lebermoose, i : 125. 1833. /• emarginata, var. grandis 



Hiiben. Hep. Germ. 124. 1834. S. Ehrharti, var. robustus DeNot. 



Comm. Soc. Critt. Ital. i : 80./. 4. 1861. Nardia emarginata, vars. 



major and aquatica Carr. Brit. Hep. 14. 1874. M. emarginata, 



var. aquatica Dumort. Hep. Eur. 126.' 1874. N. robusta Trevis. 



Mem. R. 1st. Lomb. HI. 4: 400. 1877. N. emarginata, var. 



aquatica Massal. & Carest. Nuovo Gior. Bot. Ital. 12: 312. 1880. S. 



aquaticus Breidl. Mitth. d. Naturw. Ver. f. Steiermark, 30 : 286. 



1894. Mt. Katahdin, Maine {Cowles Party); White Mountains, 



New Hampshire (6>rt'/C'a). 



3. Marsupella media (Gottsche) Schiffn. Lotos, 49 : 49. 1901 



(as synonym). Sarcoscyphus sphacelatus, var. medius GoV\sc\i^ ; 



Rabenliorst, Hep. Europ. 137. i860 (in part). S. SuUi7>a?iti DeNot! 



Comm. Soc. Critt. Ital. i: 84. / 6. 1861.^ S. Ehrharti, V2.x. 

 erythrorhizus Limpr.; Colin, Kryptogamenfl. von Schlesien, i : 248. 



1876. S. sphacelatus, var. erythrorhizus Limpr. /. r. 432. Nardia 

 sphacelata, var. media Massal. Ann. dell. 1st. Bot. di Roma, 2 : (9). 



1886. M. sphacelata, var. erythrorhiza Schiffn. Lotos, 44:267. 

 1896. M. erythrorhiza Schiffn. /. c. 49 : 48. 1901. Streaked Moun- 

 tain, Hebron, Maine (/. A. Alien) ; Mt. Washington, New Hamp- 

 shire (Z. M. Underjvood) ; Magnolia, Massachusetts ( W. G. 

 Farlow) ; Mt. Carmel and Beacon Falls, Connecticut {A. W. E.). 



Only two dioicous species of Marsupella, M. emarginata and M. 

 sphacelata, have been recognized by American students as occurring 

 in eastern North America. These two species, which have a wide 

 distribution in northern regions, have recently been studied by 

 Professor Schiffner, of Vienna, one of the most careful students of 

 the Hepaticae, and the conclusion is reached that both species, as 

 ordinarily understood, are aggregates. What he considers the typical 

 M. emarginata grows in moist rather than wet localities and is some- 



' The synonjm ''Jungermannia aquatica " for this species is sometimes attrib- 

 uted to Schrader, with the citation "Spic. Fl. Germ. 75. 1794." This, however 

 is an error, because Schrader, although describing the plant in the place quoted,' 

 does not give it a formal name. 



^ Based on Muse. Alleg. 216 (distributed as Sarcoscyf>kus Ehrharti.) 



