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A new arborescent species of Zamia from the Central Cordillera of Tolima, Colombia (Cycadales, Zamiaceae), with comments on the Z. poeppigiana species complex
Michael Calonje, Hector Eduardo Esquivel, Dennis Stevenson, Claudia Calonje and Deicy Pava
Vol. 63, No. 4 (1 December 2011), pp. 442-451
Stable URL: http://www.jstor.org/stable/23254274
Page Count: 10
You can always find the topics here!Topics: Petioles, Pollen, Plants, Species, Botanical gardens, Plant spines, Herbaria, Leaf blade, Leaves, Forest regeneration
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Zamia tolimensis, a large arborescent species from the Central Cordillera of Tolima, Colombia, is described and illustrated. It is compared to Z. lindenii and Z. poeppigiana, the two most similar species. From these it is distinguished by leaflets with fewer teeth, sparse prickles on its petioles, beige-yellow ovulate strobili with shorter peduncles, and more microsporangia aggregated into a single group on the abaxial surface of the microsporophyll. Brief descriptions of Z. lindenii and Z. poeppigiana are also provided, as well as a key to separate the three species.
Brittonia © 2011 New York Botanical Garden Press