Introduction to the study of fungi : their organography, classification, and distribution for the use of collectors . the spores, or conidia, there will be found an additionaldivision, the Dictyosporae, in which the conidia are divided inboth directions, so as to be clathrate or muiiform. Some ofthese conidia will therefore present the appearance of twentyor more simple cells, aggregated into one large complexconidium. Judging from the facility with which each cell ofthese compound conidia germinates, it may be inferred thateach cell is a reproductive unit, and is in itself a perfectconidium,
Introduction to the study of fungi : their organography, classification, and distribution for the use of collectors . the spores, or conidia, there will be found an additionaldivision, the Dictyosporae, in which the conidia are divided inboth directions, so as to be clathrate or muiiform. Some ofthese conidia will therefore present the appearance of twentyor more simple cells, aggregated into one large complexconidium. Judging from the facility with which each cell ofthese compound conidia germinates, it may be inferred thateach cell is a reproductive unit, and is in itself a perfectconidium, capable of reproducing the species. So in respectto uniseptate or multiseptate conidia, in a linear series, eachcell is capable of germination, and even, in some instances, ofseparating itself from its sister cells, when arrived at maturity(Fig. 130). Mr. Worthington Smith, in his observations onFusarium solani, has intimated that, although some of thesegments of the conidia germinate at once, others are capable ofundergoing a period of rest. He says, Sometimes these little 282 INTRODUCTION TO THE STUDY OF FUNGI. bodies do not germinate at once, but hibernate for a short time,generally varying from three weeks to three months, commonlytwo months, and during this period they Ijecome slightlyspinulose and faintly tinted with a brownish hue. These little bodies, there-fore, hibernate afterthe manner of rest-ing spores, and itis possible thatmany of them restduring the entirewinter. ^ Assum-ing that the secj-ments of theconidiaof Fusarium arecapable of forminga thicker integu-ment, and hibernat-ing through thewinter, there is noreason why, fromanalogy, otherconidia, belonging to other genera, may not be capable ofa like modification, and thus aid in the perpetuation of thespecies. It is almost certain that the thin-walled conidiaare unable to survive the winter, and hence the questionarises as to how the rejuvenescence of the Hyvliomycetes isassured; for, although in some cases a p
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