Conklin—Preliminary Report on a Collection of Hepaticae. 997 
ture popcorn balls. Once recognized this rare species can 
usually be detected in the field. 
30. Sphenolobus exsectaeformis (Briedl.) Steph. 
No. 529 Copper Creek, Douglas Co., Wis., May 5, 1909. 
No. 619 Knife River, Minn., Aug. 1, 1909. 
No. 784 Oneota River, Duluth, Minn. 
No. 601A Carlton, Minn., Sept. 26 1909. 
No. 636 French River, Minn., Oct. 3, 1909. 
No. 1190 Lutsen, Cook Co., Minn., Sept. 1911. 
31. Spfoenolobm exsectus (Schmid.) Steph. 
No. 774 Oneota, Duluth, Minn., June 27, 1909. 
No. 615 French River, Minn., Oct. 3, 1909. ; 
No. 1000 Black River, Douglas Co., Wis., Oct. 2, 1910. 
No. 618pp Knife River, Minn., Aug. 1, 1909. 
No. 1189 Lutsen, Cook Co., Minn., Sept. 1911. 
32. Sphenolobus Hellericmus (Nees) Steph. 
No. 601 French River, Minn., Oct. 3, 1909. 
No. 660 Carlton, Minn., Sept. 26, 1909. 
No. 1119 Lutsen, Cook Co., Minn., Sept. 20, 1911. 
33. Sphenolobus Michauxii (Web.) Steph. 
No. 1109 Solon Springs, Douglas Co., Wis., July 30, 1911. 
No. 1123 Lutsen, Cook Co., Minn., Sept. 20, 1911. 
The plants of tills genus are interesting both for their great 
beauty and for the easy determination of the species, which the 
gemmae afford. 
SpJi'enoiobus Tlellerianus is more difficult, especially if asso¬ 
ciated with LopJbozia attenuata. It is distinguished from the 
other species by the small size of the plants, and the club shaped 
upright gemmiperous branches covered with dark blood red 
gemmae. All the leaves on these stems are quite different from 
the ordinary leaves, being slightly emarginate, closely appressed 
and covered with gemmae as well as the apex of the stem. It 
is nsnally mixed with other hepatics, Lophozia incisa, Jame- 
soniella autumnalis, Blepha/rostoma trichophyllum, L. reptans J 
etc., and often little can be distinguished with the hand lens 
except the minute almost black red clubs. It has been found 
sparingly only in Minnesota at Carlton, and French River, but 
