Results 171 to 180 of about 1,784 (192)

Distribution and Variation of Dion Edule (Zamiaceae)

Brittonia, 1982
Dion edule is distributed through the Sierra Madre Oriental from Veracruz to Nuevo Leon and in dijunct stations in Tamaulipas. The most significant variation consists in the reduction of leaflet width from the south northwards. On this basis, two varieties are recognized:D. edule var.edule, characterized by wide leaflets and a distribution in Veracruz,
DE LUCA, PAOLO, Sabato S., Vazquez Torres M.   +2 more
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Taxonomic revision of the genus Dioon (Zamiaceae)

Phytotaxa, 2020
Cycads are a group of plants in the order Cycadales, comprising ten genera, and with a worldwide distribution. Very few taxonomic revisions are available for the genera in this order, and the present one is intended to provide a revision of the current knowledge in the genus Dioon.
JESSICA E. HERNÁNDEZ-TAPIA, JAIME JIMÉNEZ-RAMÍREZ, ANDREW P. VOVIDES   +2 more
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A new Zamia (Zamiaceae) from Colombia

Brittonia, 2018
Zamia lindosensis, a species of cycad from sandy soils of Amazonas, Colombia, is described and illustrated. It is compared to Zamia amazonum, which has similar habitat requirements, petiole morphology and prickles, leaflet margins, and strobili but with very narrow leaflets.
Dennis Wm. Stevenson, Dairon Cárdenas López, Nicolás Castaño Arboleda   +2 more
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Encephalartos ituriensis (Zamiaceae): an emended description

1998
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Gereau, Roy E., Vorster, P. J.
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A chemotaxonomic study of mucilages in American Zamiaceae

Giornale botanico italiano, 1994
Abstract Methylrhamnose, fucose, rhamnose, mannose, arabinose, galactose, and glucuronolactone are the monosaccharides identified in hydrolysed mucilages collected from 37 species belonging to the five American cycad genera (Ceratozamia, Chigua, Dioon, Microcycas and Zamia).
SINISCALCO GIGLIANO, GESUALDO, NAZZARO, ROBERTO, Muoio R.   +2 more
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WHAT IS ZAMIA PRASINA (ZAMIACEAE: CYCADALES)?

2009
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Calonje, Michael, Meerman, Jan
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Monosaccharide composition of the mucilages in Encephalartos Lehm. (Zamiaceae)

Giornale botanico italiano, 1981
Abstract Arabinose, fucose, galactose, mannose, methylrhamnose and rhamnose were identified in the hydrolysed mucilages of 14 Encephalartos species. The monosaccharides occur in quantities varying between 44% (w/w) in E. hildebrandtii and 89% (w/w) in E. tegulaneus. Galactose, arabinose and rhamnose are the most abundant monosaccharides.
Moretti A., Sabato S., SINISCALCO GIGLIANO, GESUALDO   +2 more
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Maternal inheritance of plastids in Encephalartos Lehm. (Zamiaceae, Cycadales)

Genome, 2001
The mode of inheritance of chloroplast DNA has been determined in Encephalartos by employing a restriction fragment length polymorphism analysis of chloroplast DNA. Artificial F1 hybrids were produced between a female specimen of E. natalensis and a male specimen of E. woodii.
CAFASSO D., COZZOLINO, SALVATORE, CAPUTO P., DE LUCA P.   +3 more
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Dioon Merolae (Zamiaceae), a New Species from Mexico

Brittonia, 1981
A new species ofDioon found in northwestern Chiapas is characterized by linear-lanceolate leaflets arising at an acute angle from the rachis, obliquely inserted on it and imbricate.
Paolo de Luca, Sergio Sabato, Mario Vazquez Torres   +2 more
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Zamiaceae

1990
L. A. S. Johnson, K. L. Wilson
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