. Fungi; their nature and uses. Fungi. GEBMIXATION AND GROWTH. 139 they are concealed, and we shall secure a crop.* As to other species, we know that hitherto all attempts to solve the mystery of germination and cultivation has failed. There are several species which it would be most desirable to cultivate if the con- ditions could be discovered which are essential to germination.! In the same manner the Boleti and Hydnei—in fact, all other hymenomycetal fungi, with the exception of the Tremellini—still require to be interrogated by persevering experiment and close inquiry as to their mode of
. Fungi; their nature and uses. Fungi. GEBMIXATION AND GROWTH. 139 they are concealed, and we shall secure a crop.* As to other species, we know that hitherto all attempts to solve the mystery of germination and cultivation has failed. There are several species which it would be most desirable to cultivate if the con- ditions could be discovered which are essential to germination.! In the same manner the Boleti and Hydnei—in fact, all other hymenomycetal fungi, with the exception of the Tremellini—still require to be interrogated by persevering experiment and close inquiry as to their mode of germination, but more especially as to the essential conditions under which alone a fruitful mycelium is produced. The-gerrhination of the spore has been observed in some of the Tremellini. Tulasne described it in Tremella vio- lacea.\ These spores are white, unilo- cular, and filled with a plastic matter of homogeneous appearance. From some portion of their surface an elongated germ filament is produced, into which the contents of the reproductive cell pass until quite exhausted. Other spores, perhaps more abundant, have a very different kind of vegetation. From their convex side, more rarely from the outer edge, these particular spores emit a conical process, generally shorter than themselves, and directed perpendicularly to the axis of their figure. This appen- dage becomes filled with protoplasm at the expense of the. Fio. 79.—(a) Basidia and spores of Exidia spiculosa : (6) Germi- nating spore. • The spores of Agarics which are devoured by flies, however, though returned in their dung in an apparently perfect state, are quite effete. It is, we believe, principally by the Syrpkidce, which devour pollen, that fungus spores are con- sumed. + All attempts at Chiswick failed with some of tbe more esculent species, and Mr. Ingram at Belvoir, and the late Mr. Henderson at Milton, were unsuccessful with native and imported spawn. t Tulasne, "On the Organization of the
Size: 1191px × 2098px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcookemcm, bookcentury1800, bookdecade1870, bookyear1875
