. Annales des Sciences Naturelles Botaniques. RECHERCHES SUR LES BACTÉRIACÉES FOSSILES. 341 Micrococcus hymenophagus, var. B, qui attaque les mem-. Fig. 42. — Coupe longitudinale d'an rameau d'Arthropitus bistriata. — a, bois secondaire ; 6, boulettes de moelle abandonnées par des larves. branes moyennes des cellules de YArthropitus bistriata el des Stigmaria. a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paris

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