and, in the Pacific Coast region, from Yukon to California. This species is a 
little larger than L. Mueller i, the lobes of its leaves are commonly obtuse, 
and it produces gemmae abundantly. Among New England species L . excisa 
and L. ventricosa both bear some resemblance to L. Muelleri. These 
species, however, are destitute of underleaves and their perianths are widely 
open and dentate at the mouth. Other members of the L. Muelleri-growp 
are perhaps to be expected in New England, especially in limestone dis- 
tricts.” Evans, Rhodora 8: 35. 1906. 
Figs. 4-9. 4— Plant, showing perianth X 22. 5 — Male plant, dorsal view 
X 22. 6 — Plant X 22. 7 — Leaf, dorsal view X 70. 8 — Leaf, ventral view 
X 70. 9 — Leaf cells X 365. Drawn from material collected by Dr. A. 
W. Evans, Salisbury, Conn., 1897: fruiting specimens collected by Dr s 
Chas. Lacouture, France, 1904. Sulliv. Moss Chapter Herb. 
“Lophozia porphyroleuca (Nees) Schiffn. Lotos 51 : (61). 1903. Junger- 
mannia porphyroleuca , Nees, Naturgeschichte der europ. Leberm. 2 : 78. 
1836. J. ventricosa b. porphyroleuea Limpr. ; Cohn, Krypt. -Flora von 
Schlesien 1 : 280. 1876. Mt. Bigelow, Maine (J. F. Collins and M. L. Fer- 
nald, i4g8, 1573). White Mountains ( W: Oakes). Guilford, New Hamp- 
shire (Mrs. Corter). Although this species was recorded from New England 
by Austin 1 2 many years ago, it has received but scant attention from North 
American writers and has usually been considered a simple synonym of L, 
ventricosa. Even in Europe it has been looked upon as a species of doubt- 
ful validity. When Arnell 3 studied the forms belonging to the ventricosa- 
groupe a few years ago he found that the leaf-cells in L. porphyroleuca had 
large trigones while those of L. ventricosa had small trigones or were thin- 
walled throughout. Since these differences were inconstant and he could find 
no others to support them, he decided that L. porphyroleuca was hardly 
worthy of specific rank. Recently, however, Schiffner has shown that other 
differential characters may be derived from the mouth of the perianth. In 
L. p'orphyroleucdthis is split into numerous acute lobes; the margins of these 
lobes are thickly and irregularly ciliate-dentate, some of the teeth attaining 
a length of three or four cells. In L. ventricosa the lobes are indistinct, and 
the marginal teeth are scattered and usually unicellular. It may be added 
that L. porphyroleuca grows on rotten wood and is commonly more or less 
tinged with red, while L. ventricosa usually grows on the ground or on rocks 
and is mostly dark green in color Although reported from so few localities 
L. porphyroleuca is probably widely distributed in the mountains of New 
England.” Evans, Rhodora 8: 36. 1906. 
Figs. 10-14. 10 — Plant, showing perianth X 22. n - Male plant, dorsal view 
X 22. 12 — Plant X 22. 13— Leaf, dorsal view X 70. 14— Leaf cells X 365. 
Drawn from material (F'igs.io, 14.) collected by Miss A. Lorenz, Vermont, 
1904. (Figs. 11, 13.) collected by Mrs. L. A. Carter, New Hampshire, 
1902. (Fig. 12.) collected by C. C. Haynes, Adir. Mts. 1902. Above 
specimens in Sulliv. Moss Chapter Herb. New York City. 
(Conclusion.) 
1. Proc. Acad. Philadelphia for 1869: 220. 
2, Bot. Not. 1820: 195. E. Bauer has published a German translation of Arnell’s paper 
in Lotos 41 . 1893. 
