Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 594
nd of nearly equaldiameter throughout, within which the frustules lie either in singleiile or without any definite arrangement (fig. 415), all these frustuleshaving arisen from the binary division of one individual. In the genusMastogloia, which is specially distinguished by having the… … Fig. 415.—Schizonema Grevillii : A, natural size; B, portion magnified fivediameters ; C, filament magnified 100 diameters ; D, single frustule. >(A), or may be aggregated with others into an indefinite mass (fig.417). The careful study of these composite forms is a matter ofgreat importance,…
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