. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. CAPSULAR FUNGI—PYRENOMYCETES 201 sections to the rank of genera, and distributing them over the Hyalosporae, Phaeosporae, Bidymosporae. That is to say, we have advocated the negation of carpological characters as of primary generic importance in favour of their adoption in sub- sidiary classification. Dimerosporium differs from Asterina in possessing a globose, and not a flattened perithecium, whereas the fructification follows the Asterina type. Another import- ant gen
. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. CAPSULAR FUNGI—PYRENOMYCETES 201 sections to the rank of genera, and distributing them over the Hyalosporae, Phaeosporae, Bidymosporae. That is to say, we have advocated the negation of carpological characters as of primary generic importance in favour of their adoption in sub- sidiary classification. Dimerosporium differs from Asterina in possessing a globose, and not a flattened perithecium, whereas the fructification follows the Asterina type. Another import- ant genus of the Perisporieae is Meliola, which to a certain extent is the analogue of some of the genera of the Erysipheae: (1) by the possession of an effused mycelium, or conidia-bearing subiculum, but in this genus more strongly developed, and of the nature of black moulds, or Dematieae, and not of the Muce- dinea-e; (2) by the presence of appendages surrounding the perithecia; and (3) sometimes by their parasitic habit on living leaves,—differing, however, in the fructification, inasmuch as the sporidia are normally large, septate, and coloured. The genus Perisporium has elongated triseptate sporidia, which break up freely at the joints into the component cells. In this respect there is analogy to a genus of Sphaeriaceae, that of Sporormia, which latter, except for its peri- thecia having a distinct mouth, might be allied with Perisporium. It may be stated in general terms that the Perisporieae in- cludes all the Perisporiaceae which do not fall into the first subfamily, that of the Erysipheae; for the third subfamily, that of the Gapnodieae, includes only two aberrant genera which have little definite alliance with the Perisporiaceae. The genus Capnodium is distinguished by elongated large peri- thecia, which are often branched, and usually opening at the apex with a large fringed orifice (Fig. 90). These are seated Fn „„__, ,.„lWi,, n; amongst a dense subicul
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