Plate III. 
Fig. 1a, 16.—Gleoteenium Loitlesbergereanum, Hansg. Front view. 
Fig. 1c, 1d.—Gloooteenium Loitlesbergereanum, Hanag. Side view. 
Fig. 1e.—Gleeotenium Loitlesbergereanum, Hansg. Transverse bands. 
Fig. 1f—Gleotenium Loitlesbergereanum, Hans. Spore cells. 
Fig. 2.—Cosmarium palustre, circulare, f. major, Turn. 
Fig. 3.—Cosmarium palustre, obsoletum, f. major, Turn. 
Fig. 4.—Cosmarium taxichondrum, var. nudum, Turn. Side view of frond. 
Fig. 5.—Cosmarium supergranatum, n. Sp. 
Fig. 6.—Cosmarium palustre, ovale, Zurn. 
Fig. 7.—Cosmarium palustre, circulare, f, minor, Turn. 
Fig. 8a, 8b.—Xanthidium octonarium, n. sp. 
Fig. 9.—Cusmarium turgidum, ovatum, n. var. 
Fig, 10a, 10, 10c.—Cosmarium pachydermum, 0. Sp- 
