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| Pothos deleonii M.P.Medecilo-Guiang & D.Cabactulan, in Medecilo-Guiang et Cabactulan. 2024. |
Abstract
A new species of Pothos is described and illustrated. This species is very similar to Pothos philippinensis (sheathing and leaf morphology) but differs by the inflorescence and flowers. It is closely related also to P. kingii by the deep purple inflorescence, but differs in having longer peduncle, broadly ovate-concave to cucullate spathe (which is deep wine-red when fresh to purplish-black when senescing), and the spadix that is 7/10th the entire length of the spathe.
Key words: Allopothos, Araceae, aroid diversity, critically endangered, endemic, Pothos philippinensis
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| Line drawing of Pothos deleonii A whole plant B leaf phyllotaxy C venation pattern D Inflorescence E detail of spadix Scale bars: 10 mm (B); 15 mm (D); 5 mm (E). |
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| Pothos deleonii M.P Medecilo-Guiang and D. Cabactulan A habit with flowering branch B leaf apex C leaf base D venation pattern E inflorescence F detail of spadix. |
Pothos deleonii M.P.Medecilo-Guiang & D.Cabactulan, sp. nov.
Diagnosis: This new species is morphologically similar to Pothos philippinensis based on vegetative characters but differs by the purplish peduncle, dark wine red to purplish black spathe and pendulous peduncle and acuminate to caudate (vs. acuminate to apiculate) leaf apex. P. deleonii is closest to R. kingii and P. atropurpurascens M. Hotta by having a purple cylindrical spadix but differs from 2 later species by having a much longer, purplish green to dark purple peduncle, 16–18 cm long (vs 5 cm long in P. kingii and 8 cm in P. atropurpurascens) broadly ovate spathe, subsessile spadix and 7/10 the entire length of the spathe, bigger diameter of flowers (2 mm) and flower orientation.
Maria Melanie P. Medecilo-Guiang and Derek Cabactulan. 2024. Pothos deleonii (Araceae, Potheae, Pothoideae), A New Species from Bukidnon, Mindanao, Philippines. PhytoKeys. 247: 183-190. DOI: doi.org/10.3897/phytokeys.247.130721
