1008 Wisconsin Academy of Sciences, Arts, and Letters. 
dense shadow of a summer’s day and the rippling of the brook 
to visualize the wood picture. There are many moments of ex¬ 
altation that are never forgotten by the collector, and it is the 
recollection of these which adds half of the pleasure of deter¬ 
mining the specimens themselves in later days. 
Lejeunea cavifolia has been collected only on the face of per¬ 
pendicular cliffs of sandstone at Knife Eiver on the Huronian 
slate at Carlton, Minn., and on the crumbling amygdeloid cliffs 
at Lutsen, Cook Co., Minn. It has not been found on the Cop¬ 
per Range, Wis. It would appear that the Copper Range has 
less stability of the cliff wall. At Black River and Copper 
Creek cleavage and fracture occur so frequently that the cliff 
loving species such as Frullania Asagrayana, Lejeunea cavi¬ 
folia, Lophozia ventricosa, L. alpestris and L. bicrenata fail to 
attach themselves. The other conditions of habitat such as alti¬ 
tudes, rock formation, dryness and moisture are similar on the 
two ranges. On the North Shore Range where these species 
occur, the rock surface shows from the weather staining and 
moss flora, evidence of great age. 
73. Frullania Asagrayana Mont. 
No. 957 Carlton, Minn., Sept. 11, 1910, rocks. 
No. 498 Knife River, Minn., Aug. 1, 1909, rocks. 
No. 1142 Lutsen, Cook Co., Minn., Sept. 23, 1911, trees. 
74. Frullania Bolancleri Aust. 
No. 1150 Lake Nebagamon, Douglas Co., Wis., Sept. 3, 1911. 
75. Frullania Brittoniae Evans. 
Nos. 362-481 Solon Springs, Oct. 7, 1907, birch. 
No. 362 Gordon, Wis., Sept. 15, 1906, cedar trees. 
No. 1148 Lake Nebagamon, Sept. 3, 1911. 
76. Frullania eboracensis Gottsche. 
No. 367 Gordon, Wis., Sept. 15, 1906, cedar bark. 
No. 506 Copper Creek, Sept. 1, 1907, poplar bark. 
No. 402 Albert. Minn., Aug., 1904, cedar bark. 
No. 355 Lester River, Oct. 7, 1906, rocks. 
No. 357 Nemadji River, Superior, Wis., ash trees. 
No. 360 Nemadji River, Superior, Wis., balsam bark. 
No. 1151 Lutsen, Cook, Co., Minn., Sept. 20, 1911. 
