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Philodendron melloi (Araceae), a new species from central Amazonia, Brazil

MARIANA VICTÓRIA IRUME, MARIA DE LOURDES SOARES, SIMON J. MAYO, RANGEL BATISTA de CARVALHO, CHARLES E. ZARTMAN

Abstract


A new species of Philodendron in central Amazonia, Manaus-AM, Brazil, is described and illustrated. Philodendron melloi belongs to the subgenus Philodendron and is possibly a representative of the section Tritomophyllum. This newly described species is similar to P. barrosoanum and P. hyleae, but differs Its preference for terrestrial habitats, persistence of the prophyll, intermediate-sized width of leaf base at the anterior division (1.5–5.6 cm), oblong sinus, floral sympodium with 1–4 inflorescences, 3–6 locules per ovary, and a large number (15–25) of ovules per locule, inserted along the entire length of the placenta.The other two species only have 5 (4–6) and 2 ovules per locule respectively.


Keywords


Aroid, epiphyte, taxonomy, tropical rain forest, Monocots

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DOI: http://dx.doi.org/10.11646/phytotaxa.319.2.7

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand