State Microscopical Society of Illinois · Chicago, Ill. : State Microscopical Society of Illinois · leaf 84
, Breb., differs from A. ostrearia only in its straightmargins, as stated K. S. A. p. 95. Rabenhorst unites them, FloraEiiropaea Algarum, Sectio i, p. 88. A. membranacea of W. S. alsobelongs here, the figure by Roper, M. J. vi, PI. 3, f. 8, a, b, is verygood. Grunow states that it is very variable… … ajy-
Microscopy
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