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Zamia fischeri
''Zamia fischeri'' is a species of cycad in the family Zamiaceae. It is endemic to Mexico.〔Vovides, A. & Chemnick, J. 2010. (''Zamia fischeri''. ) The IUCN Red List of Threatened Species. Version 2015.2. Downloaded on 06 September 2015.〕 It is often confused with ''Zamia vazquezii''. ''Zamia fischeri'' is named after Gustav Fischer, a cycad enthusiast of the nineteenth century.
==Description==
''Zamia fischeri'' has a subglobose subterranean stem about 8 cm in diameter. ''Zamia fischeri'' has a large stem and cones compared to its leaf size. The cataphylls are ovate, 1 to 1.5 centimeters long, and 1.5 to 2 centimeters wide. The leaves are about 15 to 30 centimeters long; the petioles are 5 to 10 centimeters long, and the rachis has 5 to 9 pairs of leaflets. The leaflets are papyraceous, tapering toward the base, and are acute apically with margins having several serrations in the outermost half. The larger middle leaflets are 3 to 5 centimeters long and .5 to 1 centimeters wide. The tan pollen cones are usually ovoid-cylindrical in shape, obtuse towards the apex, 5 to 7 centimeters in length, and 1 to 2 centimeters in diameter, with the peduncle being 1.5 to 2.5 centimeters long. The seed cones are greenish-gray to gray, cylindrical to ovoid-cylindrical in shape, acuminate at the apex, 8 to 12 centimeters long and 4 to 7 centimeters in diameter. The plant has red seeds, about 1.3 to 1.8 centimeters long and 0.5 to 0.8 centimeters in diameter. ''Zamia fischeri'' can be distinguished from ''Zamia vazquezii'' by having smaller leaves (15-30 centimeters), lancelike leaflets, and no prickles on its petioles.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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