. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. MO ULDSâH YPHOM YCE TES. â with the conidia in chains. a distinction is made between such conidia as are solitary and those which are produced in chains, or catenulate (Fig. 129); between those which are solitary and those which are clustered at the apex of the hyphae, or its branches, so as to form more or less dense heads, or clusters of conidia; between those in which the conidia are terminal and those in which they are lateral or dispersed. Other dis- tinctions are
. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. MO ULDSâH YPHOM YCE TES. â with the conidia in chains. a distinction is made between such conidia as are solitary and those which are produced in chains, or catenulate (Fig. 129); between those which are solitary and those which are clustered at the apex of the hyphae, or its branches, so as to form more or less dense heads, or clusters of conidia; between those in which the conidia are terminal and those in which they are lateral or dispersed. Other dis- tinctions are derived from the hyphae them- selves, whether simple or branched; or if simple, whether inflated at the apex or not; and if branched, whether simply' furcate, repeatedly divided, or if the branches are arranged in whorls or verticillate. All these are details which are readily gathered from the diagnoses of the separate genera, Fjo_ and we have said sufficient to indicate the principal features which have to be taken into account in the determination of the genus to which any particular mould may belong. Although the above observations apply in the first instance to the Mucedines, they apply also generally to the Dematieae, with the exception that in the divisions based on the forms of the spores, or conidia, there will be found an additional division, the Dictyosporae, in which the conidia are divided in both directions, so as to be clathrate or muriform. Some of these conidia will therefore present the appearance of twenty or more simple cells, aggregated into one large complex conidium. Judging from the facility with which each cell of these compound conidia germinates, it may be inferred that each cell is a reproductive unit, and is in itself a perfect conidium, capable of reproducing the species. So in respect to uniseptate or multiseptate conidia, in a linear series, each cell is capable of germination, and even, in some instances, of separating itself from
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