. The structure and development of mosses and ferns (Archegoniatae). Fig. 119.—A, Barhula fallax, upper part of the capsule, showing the slender twistedperistome teeth X about 20. B, Fontiualis antipyretica, showing doubleperistome (after Schimper). C, Polytrichum commune, peristome and epiphragmaX8. D, P. commune, ripe capsule; i, with, 2, without the calyptra X3. peristome of Buxhaumia, or a perforated membrane, as in Fon-tinalis (Fig. 119, B). The base of the capsule, or apophysis, which Haberlandt(4) has shown to be the principal assimilative part of the sporo^:gonium, and which alone is p
. The structure and development of mosses and ferns (Archegoniatae). Fig. 119.—A, Barhula fallax, upper part of the capsule, showing the slender twistedperistome teeth X about 20. B, Fontiualis antipyretica, showing doubleperistome (after Schimper). C, Polytrichum commune, peristome and epiphragmaX8. D, P. commune, ripe capsule; i, with, 2, without the calyptra X3. peristome of Buxhaumia, or a perforated membrane, as in Fon-tinalis (Fig. 119, B). The base of the capsule, or apophysis, which Haberlandt(4) has shown to be the principal assimilative part of the sporo^:gonium, and which alone is provided with stomata, sometimesbecomes very large, and in the genus Splachnum (Vaizy (i))especially forms a largely-developed expanded body, which,must be looked upon as a specially-developed assimilating ap-:paratus. - ;orL VI. THE BRYALES 221 Undoubtedly the Polytrichacese represent the highest stageof development among the Musci. This is true both in regardto the gametophore and the sporogonium. The former reachesin some species, e. g., P. commune, a length
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Keywords: ., bookauthorcampbelldouglashought, bookcentury1900, bookdecade1910
