. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. CHAPTER V. — COMPARATIVE REVIEW.—HYMENOMFCETES. 3°5 What function they have as hairs is still a matter of enquiry and is perhaps different in different cases. Brefeld's suggestion is best worth considering, that they serve to protect the sporogenous basidia, and perhaps take part in the Agaricineae in loosening the appressed lamellae from the stipe. That they and especially the strikingly large vesicles of the Coprini were taken by the old observers1 for male sexual organs, a
. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. CHAPTER V. — COMPARATIVE REVIEW.—HYMENOMFCETES. 3°5 What function they have as hairs is still a matter of enquiry and is perhaps different in different cases. Brefeld's suggestion is best worth considering, that they serve to protect the sporogenous basidia, and perhaps take part in the Agaricineae in loosening the appressed lamellae from the stipe. That they and especially the strikingly large vesicles of the Coprini were taken by the old observers1 for male sexual organs, and that this notion once put into print was repeatedly being discussed for more than a hundred years is a matter now only of a certain historical interest. The terms antheridia, anthers, ftollinaria owe their origin to these views. Further details respecting them will be found in older treatises on the formation of spores in the Basidiomycetes (see page 116), especially in Phoebus, in Tulasne'2, and in the first edition of this book at page 170. The basidia themselves, and the formation of spores on them, have been already described in chapter III, pages 63, 64. We have only to add here that the club- shaped form of basidium putting out 2-4 sterigmata at its upper end, such as is represented in Figs. 28 and 30, and spores varying from round to fusiform, are found in all the Hymenomycetes which have been examined, except the Tre- \d. Fig. 140. a—d Auricitlaria Auricula Judae. Basidia and formation of spores. Successive stages of the de- velopment according to the figures, a a cylindrical terminal cell of a hypha, from which, h, several definitive basidia are formed by transverse divisions; each of the basidia sends out a long narrowly conical sterigma, c, dt from its upper extremity, and the swollen apex of the sterigma is abjointed to form a spore; x a sterigma from which the spore has dropped. /'Exidia spicttlosa, Sommerf. Development of basidia. Four basidia have been
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