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| Etlingera lacerata Naive, in Naive, Ruales, Beltran, Mondejar et Rozano, 2024. |
Abstract
During our continued expeditions in Mindanao Island of southern Philippines, a new species, Etlingera lacerata Naive, was discovered and is herein described and illustrated. Resembling Etlingera amomoides closely, it is easily distinguished by its turbinate spike with a tapering tip and a red labellum adorned with occasional white spots along the lacerate margin. This study includes a comprehensive species description, colored photographs, phenology, habitat details, geographical information, and a provisional conservation assessment for this new endemic Etlingera species. With this discovery, the total of known Etlingera species in the Philippines rises to 18, with 12 of them being endemic to the archipelago.
Keywords: Alpinioideae, Biodiversity, endangered, Surigao del Norte, Zamboanga Peninsula
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| Etlingera lacerata Naive A, Habit; B, Detail of leafy shoot, inset: ligule; C, Inflorescence; D, Labellum top view; E, Labellum profile view; F, Spike; G, Sterile bracts; H, Fertile bracts; I, Flower; J, Ovary, epigynous gland, style and stigma; K, Stamen; L, Infructescence; M, Young fruit; N, Dissected fruit. <scale bars: 3 cm (A, F); 2 cm (B-E, H-J); 1 cm (G, M-N); 2 mm (K)> PHOTOS: M.A.K. Naive (based on E.P. Mondejar with MAK Naive 170). |
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| Etlingera lacerata Naive A, Bulbous base and inflorescence; B, Leaf sheath and ligule; C, Flower; D, Bracteole; E, Calyx; F, Corolla lobes and anther; G, Labellum; H, Ovary, epigynous gland, style and stigma; I, Stigma; J, Front view of stamen; K, Profile view of stamen; L, Detail of ovary and epigynous gland; M, Infructescence; N, Fruit; O, Dissected fruit. <scale bars: 2 cm (C–F, H, J); 1 cm (G-I, N); 2 mm (K-L)> (based on E.P. Mondejar with MAK Naive 170). |
Etlingera lacerata Naive sp. nov.
Diagnosis. This new species is closely similar to the Bornean endemic species, Etlingera amomoides A.D.Poulsen & Mood but can be easily recognized in having these following characters: absence of raised stilt roots (vs. presence of raised stilt roots in E. amomoides), narrowly oblanceolate leaf lamina with attenuate apex (vs. strap-shaped leaf lamina with narrowly acute apex in E. amomoides), turbinate spike with tapering apex (vs. flattened ovoid spike with truncate apex in E. amomoides), narrowly obovate fertile bracts with acuminate apex (vs. elliptic fertile bracts with acute apex), obovate to narrowly obovate corolla lobes (vs. elliptic to spatulate corolla lobes in E. amomoides), red labellum white central band in the throat and occasional white spots in the margin and plicately lacerate (vs. red with central yellow and entire margin in E. amomoides), glabrous style (vs. with scattered hairs in upper part of style in E. amomoides), and apically pubescent ovary (vs. glabrous ovary in E. amomoides).
Etymology. The specific epithet refers to the lacerate labellum of this newly discovered endemic species.
Mark Arcebal K. Naive, Jeco Jed J. Ruales, Darlo Novo M. Beltran, Eddie P. Mondejar and Ralph Rj E. Rozano. 2024. Etlingera lacerata (Alpinieae, Zingiberaceae), A New ginger Species discovered in Mindanao Island, Philippines. Journal of Asia-Pacific Biodiversity. In Press. DOI: doi.org/10.1016/j.japb.2024.09.009
Researchgate.net/publication/385048128_Etlingera_lacerata_a_new_species_discovered_in_Mindanao_Philippines