. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—CHYTRIDIEAE. 165 fatty matter in a finely g^ranular protoplasm tightly packed in a vesicular receptacle, which was evidently an intercalary member of a very slender branch filament. The spherical cells rich in fatty matter are resting-spores of Chytridium. After a long resting period (about four months in the cases which have been observed) they germinate and put forth a cylindrical germ-tube, which as it grows takes the shortest way to
. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—CHYTRIDIEAE. 165 fatty matter in a finely g^ranular protoplasm tightly packed in a vesicular receptacle, which was evidently an intercalary member of a very slender branch filament. The spherical cells rich in fatty matter are resting-spores of Chytridium. After a long resting period (about four months in the cases which have been observed) they germinate and put forth a cylindrical germ-tube, which as it grows takes the shortest way to reach the outside, piercing through the membranes of the oospore and the oogonium. When its extremity has reached the outer surface of the oogonium, it swells into an ovoid spo- rangium, which resembles in every respect that which is ascribed to Chytridium 011a. It is developed at the expense of the protoplasm of the resting-spore, which passes through the germ-tube into the sporangium after the dissolution of the fatty sphere; before this transference has come to an end a transverse wall makes its appearance in about the middle of the tube, and the sporangium when fully grown is also delimited from the tube by a transverse wall (Fig. 76 A, B). So much is matter of observation. The gaps in our knowledge of the details are readily descried ; speaking in general terms we may say that the question of conjugation and fertilisation is still unsettled, and that the continuity of the development between the germinating swarm-spore and the filaments which form the 1] // resting-spores has not been satis- factorily estabUshed. This latter defect would be of very small importance in presence of the perfect similarity between the sporangia developed from the swarm-spores of Ch. OUa and those from the resting-spores, if another form, also a Rhizidium, had not been observed in the plants examined under cultiva- tion, which at least resembles Chytridium 011a in the formation of the spora
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