Excerpt from Sylloge Bacillariearum Omnium Hucusque Cognitarum, Digessit Doct. J. Bapt. De-Toni, Vol. 1: Rhaphideæ, Naviculaceæ, Amphitropidaceæ, Cymbellaceæ, Gomphonemaceæ, Cocconeidaceæ, AchnanthaceæQuamvis pondus character-um endochromatis, quibus innititur systema cel. W. Smith, pfitzer, petit, deminue re molim, tamen characteres immutabiles et semper sat conspicuos in rhaphes seu pseudorhaphes praesentia vel ab sentia institutos anteponen...
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