The English flora - SeaweedAfrica

410 ALGiE DIATOMACEiE. [Gomphonema
tawny, stipes subramose, frustula wedge-shaped truncate.
Exilaria minutissima, Berk. Brit. Alg. p. 22. t. l.f. 1.
Attached to sticks, stones, grass, &c, in fresh-water, Rev. M. J. Ber-
keley. Spring arid early Summer.— Tufts or masses several lines thick,
of a tawny colour ; when dry of a lively green. Mr. Berkeley thinks it
may be the same as the preceding, which, however, is a much smaller
plant, less tufted, and whitish or slightly ochraceous when dry. I have
therefore ventured to keep it distinct.
3. G. minutum, Ag. (minute Gomphonema); plant forming an
apparently pulverulent stratum, stipes sparingly branched, the
frustula linear-conical globuliferous at the apex. Ag. Conspect.
Crit. Diat. p. 34.
Streams, attached to Conferv