Thunia alba (Lindl.) Rchb.f.

in Bot. Zeit. 10: 764 (1852).

Synonymes

Phaius albus Lindl. in Wallich Cat.: 3749 (1831). (basionyme)

Phaius marshallianus (Rchb.f.) N.E.Brown in Kew. Bull. 101 (1889).

Thunia marshalliana Rchb.f. in Kew. Bull. 101 (1889).

Phaius bensoniae Bentham in J. Linn. Soc., Bot. 18: 305 (1881).

Phaius marshalliae Hort. in Gard. Chron. 1871: 807 (1871).

Phaius niveus Hemsley in Gard. Chron., n.s., 18: 566 (1882).

Thunia nivalis (Hemsley) Rchb.f. in Gard. Chron., ser. 3, 4: 62 (1888).

Répartition

Andaman et Nicobar, Bhoutan, Birmanie, Chine, Inde, Laos, Malaisie, Népal, Sikkim, Thaïlande, Tibet, Vietnam.

Chine : Sichuan, Yunnan.

Inde : Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Karnataka, Kerala, Manipur, Meghalaya, Mizoram, Nagaland, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal.

Floraison : __MAMJJA____. Altitude de 550 à 2300 m.

Description sommaire

Plante terrestre. Taille de 30 à 100 cm. Feuilles de 10 à 20, de 100-280 × 18-38 mm, distiques, elliptiques, oblongues. Inflorescence . Fleurs de 2 à 8, blanches. Eperon de 10 à 15 mm. Sépale dorsal oblong, de 40-52 × 10-13 mm. Sépales latéraux oblongs, de 40-50 × 10-12 mm. Pétales oblongs, de 45-50 × 7-9 mm. Labelle oblong, panduriforme, de 45-50 × 25-45 mm. Chromosomes : 2n=36,38,40,42,44,80.

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