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| Hedychium mechukanum M.Sabu & Hareesh in Sabu & Hareesh, 2020. Gardens' Bulletin Singapore. 72(2); |
ABSTRACT
The new species Hedychium mechukanum M.Sabu & Hareesh is described from Arunachal Pradesh, India. It shows similarities to Hedychium urophyllum G.Lodd., H. coronarium J.Koenig, H. flavum Roxb. and H. chrysoleucum Hook. from Northeast India, and to H. qingchengense Z.Y.Zhu from China. A detailed description along with colour photographs are provided for ease of identification.
Keywords: Arunachal Pradesh, Northeast India, Quing, Zingiberales
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| Hedychium mechukanum M.Sabu & Hareesh. A. Habit. B. Leafy shoot, arrow mark indicating ligule. C. Young inflorescence. D. Close-up of flower. E. Cincinnus with bract removed. F. Bract. G-I. Bracteoles. J. Single flower. K. Corolla tube split open. L. Calyx. M. Stamen. N. Corolla lobes. O. Lateral staminodes. P. Labellum. Q. Ovary with epigynous glands. R. Cross section of ovary. (Photos: M. Sabu and V.S. Hareesh). |
Hedychium mechukanum M.Sabu & Hareesh sp. nov.
The new species is morphologically similar to Hedychium urophyllum but differs from the latter in having glabrous ligules, larger flowers, labellum which is white and yellow-tinged towards the base, glabrous calyx, internally glabrous corolla tube, and longer stamens (see Table 1).
Etymology. The specific epithet of the new taxon comes from the name of a small town, Mechuka, which borders China at about 1850 m above sea level in Shi-Yomi District of Arunachal Pradesh. This taxon was collected from the Mechuka valley on the way to Mechuka from Along.
M. Sabu and V.S. Hareesh. 2020. Hedychium mechukanum (Zingiberaceae), A New Species from the eastern Himalayas, India. Gardens' Bulletin Singapore. 72(2); 291 - 297.
