. Studies in fossil botany . Paleobotany. Fig. 77.—Lejiidostrobus Vclthehnianus. Megaspore in section, filled with prothallus, which protrudes somewhat through the opening of the megaspore-wall. X 50. S. Coll. 912. R. S. fact that the megaspores in the sporangium are em- bedded in a massive parenchymatous tissue. In other specimens traces of the archegonia are recognisable. Fig. 78.—Mazocarpon, Benson in MS. Isolated megaspore filled with prothallus. X about 35. From a photograph by Mr. W. Tarns. S. Coll. 1756. Renault found megaspores of a Lepidostrobus in which the prothalloid tissue con
. Studies in fossil botany . Paleobotany. Fig. 77.—Lejiidostrobus Vclthehnianus. Megaspore in section, filled with prothallus, which protrudes somewhat through the opening of the megaspore-wall. X 50. S. Coll. 912. R. S. fact that the megaspores in the sporangium are em- bedded in a massive parenchymatous tissue. In other specimens traces of the archegonia are recognisable. Fig. 78.—Mazocarpon, Benson in MS. Isolated megaspore filled with prothallus. X about 35. From a photograph by Mr. W. Tarns. S. Coll. 1756. Renault found megaspores of a Lepidostrobus in which the prothalloid tissue contains flask-shaped cavities strongly suggestive of archegonia. There is thus every reason to believe that the mode. 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 Scott, Dukinfield Henry, 1854-1934. London, A. and C. Black
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