. PiQ. 320.—Nostoc (/unnerae. Longitudinal sections through a gland in stem of Gunnera macro-phylla. e, Epidermis; s, slime-canal ; no, colony of Xoxtoc. (After Merker.) The Nostoc finds its way into the gland as soon as the epidermis is broken, apparently attracted there by some secretion. Merker found that the Nosfoc filaments pass down 1 Merker, " Ginmcra macrophylla," Inaugural Dissertation, 1S8S.

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectparasit, bookyear1897