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17 May 2017 Neonauclea viridiflora (Rubiaceae), a New Species of Naucleeae from Eastern Samar, with Notes on Myrmecophytic Species in the Philippines
Jorge Anton D. Ordas, Cecilia I. Banag, Grecebio Jonathan D. Alejandro
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Abstract

A new myrmecophytic species, Neonauclea viridiflora, is described from Eastern Samar, Philippines. It bears similarity to N. formicaria, but is easily distinguished by having obovate leaves, smaller flowering heads of 30–35 mm, persistent calyces that are glabrous inside the tube, calyx shafts that are connate at the bases for 0.8–2.5mmor sometimes entirely connate with the adjacent lobe, apical portions of the calyces that are bluntly turbinate but globose to clavate when dry, calyx summits that are bluntly conical but the apex is somewhat flattened when dry, and smaller and slender light green corollas. Comparative illustrations of the calyx lobes, a key to the Philippine myrmecophytic Neonauclea species, and a map for these species' distributions in the Philippines are provided in the study.

© 2017 by the American Society of Plant Taxonomists
Jorge Anton D. Ordas, Cecilia I. Banag, and Grecebio Jonathan D. Alejandro "Neonauclea viridiflora (Rubiaceae), a New Species of Naucleeae from Eastern Samar, with Notes on Myrmecophytic Species in the Philippines," Systematic Botany 42(2), 364-370, (17 May 2017). https://doi.org/10.1600/036364417X695592
Published: 17 May 2017
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Calyx lobes
endangered
endemic
Mindanao
Visayas
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