Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 403
from one side orthe other, before the elongation of the stipes; so that the entireplant presents us with a more or less complete fiabella or fanupon the summit of the branches, with imperfect flabellas or singlefrustules irregularly scattered throughout the entire length of thefootstalk. This… … DIATOMACEyE :—FEAGILLAEIEyE : DIATOM A. 343 Fig. 173. Fig. 174. ment, they form a straight band. In some genera they are smooth,in others transversely striated, with a central nodule ; when striaeare present, they run across the valves without interruption.-—Tothis family belongs the genus Diatoma,…
Microscopy · Biology
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