. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. PRESENT POSITION OF PALEOZOIC BOTANY SCOTT. 397 mens are not in the petrified condition, it was found possible to isolate the microspores, which are still contained in the sporangia. It is a point of great interest that the male fructification of Lygino- dendron should have been borne on the same frond which elsewhere shows the usual vegetative characters. In this respect Lyginoden- dron was at a lower stage of differentiation than many Fer
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. PRESENT POSITION OF PALEOZOIC BOTANY SCOTT. 397 mens are not in the petrified condition, it was found possible to isolate the microspores, which are still contained in the sporangia. It is a point of great interest that the male fructification of Lygino- dendron should have been borne on the same frond which elsewhere shows the usual vegetative characters. In this respect Lyginoden- dron was at a lower stage of differentiation than many Ferns, and far below the level of any seed plants previously known. About a year before Mr. Kidston's discovery, Miss M. Benson had described a sjaiangic fructification, with structure preserved, which she named Telangium Scotti^ and was inclined to refer to Lygino- dendron. In this fructification, from 4 to 8 mm. long, pointed spo- rangia are partialh^ united to form synangia, much like some of those attributed to Marattiaceae. The best evidence for reference to Lygino- dendron was afforded by the spores, which agree xery nearh'^ with. 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 Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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