. Fig. 107.—Caeoma piiiitnrqiurii. Portion of C'/(0?)i'(-patch(enlarged). /, Cortical cells partially absorbed or nnich compressed ; !/, basidia from whicli spores (c) are abjointed in succession : the younger with delicate walls and separated by membranous lamellae, which disappear on formation of the spore-coats (d). (After R. Hartig.) The pycnidia are produced at end of May or beginning of June, between the epidermal cell-wall and the cuticle of green twigs; before breaking out they may be observed externally as light patches on the shoot. The Ca^oma-patches develop later in the second or t
. Fig. 107.—Caeoma piiiitnrqiurii. Portion of C'/(0?)i'(-patch(enlarged). /, Cortical cells partially absorbed or nnich compressed ; !/, basidia from whicli spores (c) are abjointed in succession : the younger with delicate walls and separated by membranous lamellae, which disappear on formation of the spore-coats (d). (After R. Hartig.) The pycnidia are produced at end of May or beginning of June, between the epidermal cell-wall and the cuticle of green twigs; before breaking out they may be observed externally as light patches on the shoot. The Ca^oma-patches develop later in the second or third layer of the rind-parenchyma (Fig. 196). In each patch the spores are produced serially from .short stalks to the number of twenty or thereabout, and ultimately escape about June, when the cells of the parenchyma and epidermis are ruptured. At first the spores are connected together by intermediate cells which are afterwards absorbed (Fig. 197). The mature spores are globose, oval, or polygonal
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
