. Fossil plants : for students of botany and geology . Paleobotany. XIX] LEPIDOCABPON 273 up from the sporophyll, forming an integument which overtops the apical ridge of the sporangium, leaving a narrow micropyle in the form of a long crevice (m, fig. 218, B). At the proximal end of the sporangium the integument forms an enclosing wall; at the distal end it abuts on and is continuous with the upturned end of the sporophyll. It is clearly established by Scott that the. Fio. 218. Lepidocarpon Lomaxi, Scott. A and C. After Scott. B. Diagram of a single sporophyll: m, micropyle ; St, stele. tissu
![. Fossil plants : for students of botany and geology . Paleobotany. XIX] LEPIDOCABPON 273 up from the sporophyll, forming an integument which overtops the apical ridge of the sporangium, leaving a narrow micropyle in the form of a long crevice (m, fig. 218, B). At the proximal end of the sporangium the integument forms an enclosing wall; at the distal end it abuts on and is continuous with the upturned end of the sporophyll. It is clearly established by Scott that the. Fio. 218. Lepidocarpon Lomaxi, Scott. A and C. After Scott. B. Diagram of a single sporophyll: m, micropyle ; St, stele. tissu Stock Photo](https://c8.alamy.com/comp/PG15T4/fossil-plants-for-students-of-botany-and-geology-paleobotany-xix-lepidocabpon-273-up-from-the-sporophyll-forming-an-integument-which-overtops-the-apical-ridge-of-the-sporangium-leaving-a-narrow-micropyle-in-the-form-of-a-long-crevice-m-fig-218-b-at-the-proximal-end-of-the-sporangium-the-integument-forms-an-enclosing-wall-at-the-distal-end-it-abuts-on-and-is-continuous-with-the-upturned-end-of-the-sporophyll-it-is-clearly-established-by-scott-that-the-fio-218-lepidocarpon-lomaxi-scott-a-and-c-after-scott-b-diagram-of-a-single-sporophyll-m-micropyle-st-stele-tissu-PG15T4.jpg)
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. Fossil plants : for students of botany and geology . Paleobotany. XIX] LEPIDOCABPON 273 up from the sporophyll, forming an integument which overtops the apical ridge of the sporangium, leaving a narrow micropyle in the form of a long crevice (m, fig. 218, B). At the proximal end of the sporangium the integument forms an enclosing wall; at the distal end it abuts on and is continuous with the upturned end of the sporophyll. It is clearly established by Scott that the. Fio. 218. Lepidocarpon Lomaxi, Scott. A and C. After Scott. B. Diagram of a single sporophyll: m, micropyle ; St, stele. tissue which invests the sporangia is not the upturned margins of the sporophyll, but a new formation fully entitled to the designation integument. It is noteworthy that the integument is not developed until a late stage in the ontogeny of the strobilus; it is not formed until after the production of the prothallus^ 1 Letter from D. H. Scott (March 30, 1908).. 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 work.. Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press