. Vergleichende Morphologie und Biologie der Pilze, mycetozoa und Bakterien. Anlage; Morphologie; Pilze; Myxomyceten; Bakteriologie. Kapitel V - vergleichende Überprüfung.- ASCOMrCETES.- COLLEMACEAE. ail auf der Innenseite mit periphyses, die Konvergenz im Hinblick auf die mittlere Linie abgedeckt. Alle periphyses, denen der Hals sowie diejenigen darunter, konvergieren, bis Ihre Extremitäten berühren, aber ohne sich fest, so dass Asci oder Sporen können zwischen ihnen nach außen weitergeben, wenn sie reif sind. In Melanospora parasitica die Zukunft Kanal Der ostiole ist zum Teil aus der ersten markierten, Th

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. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—ASCOMrCETES.—COLLEMACEAE. ail covered on the inside with periphyses which converge towards the median line. All the periphyses, those of the neck as well as those beneath it, converge till their extremities touch, but without becoming firmly united, so that asci or spores can pass between them to the outside when they are mature. In Melanospora parasitica the future canal of the ostiole is to some extent marked out from the first, for the non-ascogenous basal cells of the spiral archicarp, that is the cells turned towards the place of insertion, remain in their place as large vesicles, together forming a strand outside which the periphyses which converge towards it afterwards spring from the wall. Then the neck also grows in the direction of the strand outwards at the place of insertion of the perithecium or archicarp, while the vesicles are ejected as disorganised masses of mucilage. In Sordaria it would appear that the canal of the ostiole and the neck are formed on the side diametrically opposite to the place of insertion of the perithe- cium ; the first simply in consequence of corresponding surface extension of the yoimg wall, and as an intercellular space which is at once filled with the periphyses; the formation of the neck has been less exactly studied. According toVanTieg- hem's observations Chaeto- Tninm is nearly related to the forms which we have been considering. The con- clusions of this writer have, it is true, been stoutly as- sailed by Zopf, but on the other hand they have been recently confirmed by Eidam, and rightly as far as I can see. Some particulars are still doubtful, and should be submitted to further exam- ination with due reference to the works of these observers. The latter remark will apply also to Bainier's short description of some species of Ascotricha examined by him and

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• bookcentury1800
• bookdecade1880
• bookpublisheroxfor
• bookyear1887