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Dion Tomasellii (Zamiaceae), a New Species with Two Varieties from Western Mexico
Paolo de Luca, Sergio Sabato and Mario Vazquez Torres
Vol. 36, No. 3 (Jul. - Sep., 1984), pp. 223-227
Stable URL: http://www.jstor.org/stable/2806511
Page Count: 5
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Dion tomasellii sp. nov. occurs with an interrupted distribution from Guerrero to central Sonora. It is characterized by falcate to subfalcate leaflets. The populations from Sonora and northern Sinaloa are segregated as D. tomasellii var. sonorense on the basis of their narrower and glaucous leaflets.
Brittonia © 1984 New York Botanical Garden Press