The structure & development of the mosses and ferns (Archegoniatae) . -cal. Fig. 79.—A, Male catkin of SJi/iagnnm cymhifoliuin, x 50 ; B, young antheridium of S. acutifoluaii,X350; C, opened antheridium of the same species; D, spermatozoid, X 1000 (about): E, femalebranch with sporogonium of .?. acuti/olunn, slightly magnified ; cal, calyptra. A, C, E, afterSchimper ; B, after Leitgeb. The antheridia stand singly in the axils of the leaves, andLeitgeb ^ states that their position corresponds with that of 1 Leitgeb (4). VI MOSSES {MUSCJ): SFHAGNACEJ£—ANDRE/EACEAi 167 branches, with which he reg
The structure & development of the mosses and ferns (Archegoniatae) . -cal. Fig. 79.—A, Male catkin of SJi/iagnnm cymhifoliuin, x 50 ; B, young antheridium of S. acutifoluaii,X350; C, opened antheridium of the same species; D, spermatozoid, X 1000 (about): E, femalebranch with sporogonium of .?. acuti/olunn, slightly magnified ; cal, calyptra. A, C, E, afterSchimper ; B, after Leitgeb. The antheridia stand singly in the axils of the leaves, andLeitgeb ^ states that their position corresponds with that of 1 Leitgeb (4). VI MOSSES {MUSCJ): SFHAGNACEJ£—ANDRE/EACEAi 167 branches, with which he regards them as homologous, havingobserved in some cases a bud occupying the place of anantheridium. He studied in detail their development, whichdiffers considerably from that of the other Mosses. Theantheridium arises from a single cell whose position correspondsto that of a lateral bud on an ordinary branch. This cellgrows out into a papilla and becomes cut off by a transversewall. The outer cell continues to elongate without anynoticeable increase in diameter, and
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Keywords: ., bookcentury1800, bookdecade1890, bookidstructuredev, bookyear1895
