. A manual of botany. Botany. Fig. 861. Section of cup-shaped recepfcacle of Marchantia, in whicli gemmffi, a, are being developed. Fig. 862. A. Aula- common androgyiium, showing gemmaa borne upon a long stalk, b. Collection of gemmEe magnified. the Thallophytes. It often, however, produces gemmce upon some part of its surface. These gemmae have a very varied distribution ; in many Hepaticse they arise in cup-shaped receptacles upon the upper surface [figs. 861 and 866); m others they are developed upon the leaves ; in the Mosses a collection of them is sometimes found upon a long staUi (Auloc
. A manual of botany. Botany. Fig. 861. Section of cup-shaped recepfcacle of Marchantia, in whicli gemmffi, a, are being developed. Fig. 862. A. Aula- common androgyiium, showing gemmaa borne upon a long stalk, b. Collection of gemmEe magnified. the Thallophytes. It often, however, produces gemmce upon some part of its surface. These gemmae have a very varied distribution ; in many Hepaticse they arise in cup-shaped receptacles upon the upper surface [figs. 861 and 866); m others they are developed upon the leaves ; in the Mosses a collection of them is sometimes found upon a long staUi (Aulocomnion) {fig. 862), or they may occur upon the axis or on the root hairs. They are generally flattened masses of oeUs, sometimes with definite growing points. Most mosses can put out protonemal filaments from various parts of their surface, which can develop new plants as did the origmal protonema. Frequently branches are separated from the plant by the dying away of the older tissue at their bases, and these then become fresh plants. The Bryophyta include the two classes of the Hepatiose OT Liverworts and the Musci or trije Mosses,. 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 Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1895
