190 Rhodora [OcroBER 
commonly bears several supplementary keels in addition to the three 
keels characteristic of the Trigonantheae as a whole. These pecul- 
iarities afford an excellent combination of generic characters, although 
it must be admitted that some of them are not invariably constant. 
In addition to the species noted above, Cephaloziella divaricata (Sm.) 
Schiffn. and C. myriantha (Lindb.) Schiffn. are also known from New 
England.’ It is also probable that the number of species would be 
still further increased if the material on hand were thoroughly re- 
vised. 
8. BAZZANIA TRICRENATA (Wahl.) Trevis. Mem. R. Ist. Lomb. 
III. 4: 415. 1877. Jungermannia triangularis Schleich. Pl. Crypt. 
Exsic. Helvet. 2: 61. 1803 (nomen nudum). J. tricrenata Wahl. КІ. 
Carpat. 364. 1814. J. deflexa Mart. Fl. Crypt. Erlangensis 135. 
pl. 3, f. S. 1817. Pleuroschisma tricrenatum Dumort. Syll. Jung. 
70. 1831. P.deflexum Dumort.l. c. 71. Herpetium deflecum Nees, 
Naturgeschichte der europ. Leberm. 3: 59. 1836. Mastigobryum 
denudatum Тоттеу; С. L. & N. Syn. Hep. 216. 1845. M. ат 
biguum Lindenb. |. c. 217. M. deflecum Nees, 1. c. 231. Bazzania 
triangularis Lindb. Acta Soc. Sci. Fenn. 10: 499. 1875. B. de- 
flexa Underw. Bull. Ill. State Lab. Nat. Hist. 2: 83. 1884. The 
same reasoning which applies to Lophozia attenuata applies to Baz- 
zania tricrenata as well. Schleicher’s Jungermannia triangularis, 
inadequately published as a nomen nudum, ought to be superseded 
by the adequately published J. tricrenata of Wahlenberg. ‘The syn- 
onymy of the species is exceedingly complicated, and only the more 
important of its many names are indicated above. It is usually abun- 
dant in mountainous and northern regions and is known in New 
England from New Hampshire, Vermont, Massachusetts, and Con- 
necticut. Strangely enough it has not yet been reported from Maine. 
9. LEUCOLEJEUNEA CLYPEATA (Schwein.) Evans, Torreya 7: 227. 
1908. Jungermannia clypeata Schwein. 1821. Lejeunea clypeata 
Sulliv. 1848. Archilejeunea clypeata Schiffn. 1895. ‘This species 
is known from Massachusetts and from numerous localities in Con- 
necticut. It should also be looked for in Vermont, since it has already 
been found on the eastern shore of Lake George, New York. 
10. LEUCOLEJEUNEA UNCILOBA (Lindenb.) Evans, Torreya 7: 
228. 1908. Lejeunea unciloba Lindenb. 1845.  Archilejeunea unci- 
loba Steph. 1895. A. Sellowiana Steph. 1895. The only known 
1See Evans, RHODORA 7: 55. 1905, 
