. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—ASCOMYCETES.—ASCOBOLUS. 207 a series of simple apparently similar cells rich in protoplasm which grow to be about as long as broad, and then a preliminary cessation of this growth takes place. Slender branches which spring from the mycelium near the archicarp, and also branch, themselves, now grow in the direction of the archicarp and apply themselves and their branches closely to its free extremity (Fig. 95 /). They behave in this respe
. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—ASCOMYCETES.—ASCOBOLUS. 207 a series of simple apparently similar cells rich in protoplasm which grow to be about as long as broad, and then a preliminary cessation of this growth takes place. Slender branches which spring from the mycelium near the archicarp, and also branch, themselves, now grow in the direction of the archicarp and apply themselves and their branches closely to its free extremity (Fig. 95 /). They behave in this respect like the antheridial branches of Eurotium and Erysiphe and may therefore receive the same name. Their contact with the archicarp is followed at once by the formation of a large number of fresh branches on the hyphae which produced them and on adjacent mycelial hyphae, and all these later branches grow closely interlaced round the archicarp and the first antheridial branches, which from this time cease to be distinguishable. The archicarp is thus at once inclosed in a compact hyphal coil, the envelope, which then grows considerably, partly by the introduction of new hyphal branches partly by the increase in size of those previously formed, the cells of which become vesicular and for the most part continue united together into a dense f pseudo-parenchyma. A fewperipheral layers of these cells form a thick-walled rind, which is yellow in Ascobolus furfuraceus from the colour of the membranes but is differently coloured in other species, and which sends rhizoid-hyphae into the sub- stratum at the points of contact, while in many species, but not in A. furfuraceus, it produces spreading hairs of peculiar form and arrangement. With all these changes the sporocarp assumes a spherical shape, and the course and direction of its growth are such that the archicarp remains in- closed in the basal portion of the sphere where it rests on the substratum. The formation of paraphyses b
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