. Fungi; their nature, influence, and uses;. Fungi. 124 FUNGI. of short threads, either enclosed in a perithecium, or seated upon a kind of stroma. These are exceedingly variable, sometimes large, and multiseptate, at other times minute, resembling sper- matia. In such genera as are chiefly epiphytal, in Septoria, Fhyllosticta, and their allies, the minute spores are enclosed within membranaceous perithecia, and when mature these are ejected from the orifice at the apex, or are exposed by the break- ing oS" of the upper portion of the perithecia. In Diplodia and Hendersonia the spores are
. Fungi; their nature, influence, and uses;. Fungi. 124 FUNGI. of short threads, either enclosed in a perithecium, or seated upon a kind of stroma. These are exceedingly variable, sometimes large, and multiseptate, at other times minute, resembling sper- matia. In such genera as are chiefly epiphytal, in Septoria, Fhyllosticta, and their allies, the minute spores are enclosed within membranaceous perithecia, and when mature these are ejected from the orifice at the apex, or are exposed by the break- ing oS" of the upper portion of the perithecia. In Diplodia and Hendersonia the spores are larger, mostly coloured, often very fine in the latter genusj and multiseptate, escaping from the perithecia by a terminal pore. Probably the species are only pyc- nidia of Sphariacei, but that is of no consequence in relation to our present inquiry. Of stylospores which deserve mention on FiQ. 50.—Spores of Bilo- account of their singn- phospm-a gmminis. jarity of form, we may note those of DilopTiospora graminis, which are straight, and have two or three hair-like appendages at each extremity. In Discosia there is a single oblique bristle at each end, or at the side of the septate spores, whilst in Neottiospora a tiift of. Fio. 49.—Spore of 7/eB- dersonia Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cooke, M. C. (Mordecai Cubitt), b. 1825-; Berkeley, M. J. (Miles Joseph), 1803-1889. New York, D. Appleton and Co.
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