File:Image from page 310 of "The structure and development of mosses and ferns (Archegoniatae)" (1918) (14782009341).jpg

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Identifier: structuredevelop00camp3 Title: The structure and development of mosses and ferns (Archegoniatae) Year: 1918 (1910s) Authors: Campbell, Douglas Houghton, 1859-1953 Subjects: Publisher: New York, Macmillan Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden


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Caption for Image: Fig. 168.—Archangiopteris Henryi. A, Entire sterile leaf, reduced; B, base of stipe,showing the stipules; C, part of a fertile pinna, of the natural size. (After Christ & Giesenhagen.)


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Archangiopteris Henryi. A, Entire sterile leaf, reduced; B, base of stipe,showing the stipules; C, part of a fertile pinna, of the natural size. (AfterChrist & Giesenhagen.) , the contraction of thinner walled cells surrounded by firmertissue. The number of spores produced in each loculus is approx-imately 1750 for Dancca, 7500 for Kaulfiissia, 2500 for Marat-tia, and 1450 for Angiopteris. J Bowers account and figures of Angiopteris differ from thespecimens examined by the writer in the greater thickness of
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Source Image from page 310 of "The structure and development of mosses and ferns (Archegoniatae)" (1918)
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Marattiaceae

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