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| Amomum nagamiense V.P. Thomas & M. Sabu
in Thomas, Sabu & Nissar, 2019.
DOI: 10.6165/tai.2019.64.9
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Abstract
A new species of Amomum from Nagaland is described and illustrated. The photographs and illustrations are provided. The species shows similarity with A. maximum in having bi-lobed ligule and white flowers and non-stoloniferous rhizome, but differs in slender habit, glabrous lamina, ligule with rounded apex, nonperishable, smaller bracteole, obtuse dorsal corolla lobe, pubescent anther lobe and ridged fruits.
Keyword: Amomum; India; Nagaland; New species; Zingiberaceae
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| Fig. 2. Photographs of Amomum nagamiense. A: habit. B & C: inflorescences. D: inner bract. E: bracteole. F: flower. G: calyx. H: corolla lobes. I: labellum. J: stamen. K: ovary with epigynous glands and style. L: stigma. M: fruit. Photos by V.P. Thomas. |
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| Fig. 1. Illustration of Amomum nagamiense. A: habit. B: ligule. C: inflorescence. D: inner bract. E: bracteole. F: flower. G: calyx. H: corolla lobes. I: stamen. J: labellum. K: ovary with epigynous glands and style. L: stigma. M: cross section of ovary. N: fruit. Illustration by V.P. Thomas |
Amomum nagamiense V.P. Thomas & M. Sabu, sp. nov.
Similar to Amomum maximum in having bilobed ligule, white flowers, and non-stoloniferous rhizome, but differs in slender habit, glabrous lamina, ligule with rounded apex, non-perishable, smaller bracteole, obtuse dorsal corolla lobe, pubescent anther lobe and ridged fruits.
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Distribution: India (Nagaland).
Ecology: Found growing as undergrowth in the
semi-evergreen forest at an altitude of 1000 m asl in NE
India.
Etymology: Named for the Indian State Nagaland.
Affinities: The species shows similarity with Amomum maximum in having bi-lobed ligule, white flowers, and
non-stoloniferous rhizome, but differs in many attributes.
A comparison with two other related species Amomum
glabrum S. Q. Tong and A. menglaense S. Q. Tong are
also presented (Table 1).
Valukattil Ponnachan Thomas, Mamiyil Sabu and Vettathukattil Abdul Gafoor Muhammed Nissar. 2019. A New Species of Amomum Roxb. (Zingiberaceae) from Nagaland, India. Taiwania. 64(1); 9-12. DOI: 10.6165/tai.2019.64.9
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