Conklin—Preliminary Report on a Collection of Repaticae. 989 
IIEPATICAE COLLECTED IE" DULUTH-SUPERIOR 
DISTRICT. 
Order 1. Ricciaceae. 
1. Riccia fluitans L». 
No. 267 Superior, Wis., Aug. 3, 1907. 
Very abundant along the shore in still water of the St. Louis 
Bay. Although collected only from the Wisconsin side, it un¬ 
doubtedly could be found in the numerous back-waters of the 
Minnesota side of the bay. One other Riccia have been re¬ 
ported, R. arvensis Aust. from Madison. It has not been ob¬ 
served here. Ricciocarpus natans (L) Oorda is reported from 
both states, but has failed to appear in the District, although a 
special search has been made along the bays, rivers, and upland 
lakes. 
Order 2. Marchantiaceae. 
2. Conocephalum conicum (L) Durmot. 
No. 431 Woodland, Duluth, Minn., May 30, 1909 (fruiting). 
No. 1024 Winneboujou, Brule, Wis., Apr. 9 (fruiting). 
No. 1180 Lutsen, Cook Co., Minn., Sept. 1911. 
3. Preissia quadrata (Scop.) Nees. 
No. 634 Black River, Douglas Co., Wis., Oct. 5, 1909. 
No. 647 French River, Minn., Oct. 3, 1909. 
No. 1181 Lutsen, Cook Co., Minn., Sept. 1911. 
4. Marchantia polymorpha L. 
No. 82 Gordon, Wis., Sept. 16, 1906. 
No. 918 Billings Park, Superior, Wis., Sept. 9, 1906. 
No. 534 Copper Creek, Wis., Aug. 5, 1909. 
No. 289 Copper Creek, Wis., Aug. 29, 1907. 
No. 1182 Lutsen, Cook Co., Minn., Sept. 1911, Duluth, Minn,, 
etc. 
No. 1041 Black River, Douglas Co., Wis., Oct. 3, 1910. 
Conocephalum conicum is very common in wet swampy 
places, and along banks of streams. It fruits here about May 
30th, when Epigaea repens is in flower. In 1910 it was in full 
fruit April 9th, which was an unusually early season. 
