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Zeuxine

Zeuxine Lindley

A widespread genus of some 40-50 species of terrestrial orchids, Zeuxine is represented in India by 16 species . Six species are found in Kerala.

1. Zeuxine affinis (Lindl) Benth . ex J.D. Hook., Fl. Brit. Ind. 6 : 108 . 1890; 1894: 2177; Seidenfaden 1978: 88; Sasidharan , Rajesh & Augustine 1999: 159 . Monochilus affinis Lindl. , Gen . Sp. Orch. 487. 1840, pro parte .

This was recently reported from Shenduruny Wildlife Sanctuary as a new recorded for peninsular India .

Occurrence : Quilon District.

Distribution : India , Bhutan , Burma , Thailand , Laos and Malaysia .

2. Zeuxine flava (Wall.ex. Lindl.) Benth.ex. J.D. Hook ., Fl. Brit. Ind. 6: 108. 1890 & 1894 : T. 2176 (p.p .? ); Seidenfaden 1978: 84.

Monochilus flavum Wall. ex. Lindl., Gen.Sp. Orch. 487.1840.

Zeuxine clandestina auct. non. Bl. : Rao 1988: 95.

This was described based on Wallich's collection from Nepal. Rao's record of Zeuxine clandestina Bl. is erroneous . His material (Vajravelu 59101, MH1) belongs here .

Occurrence : Trivandrum , Idukki , Palghat and Wayanad Districts.

Distribution : India ,Nepal , Bhutal , Burma and Thailand .

3. Zeuxine gracilis (Breda) bl. , Coll. Orch. Ind. Arch. 69 . T. 18 . Fig. 2 & t. 230. 1858; Seidenfaden 1978: 86.

Psychechilos gracile Breda , Gen . Sp. Orch. Asc. T. 9. 1827.

Described by Breda based on van Hasselt's collection from Bantam in Java.

Occurrence : Trivandrum District.

Distribution : Indo-Malesia .

4. Zeuxine longilabris (Lindl.) Benth. ex. J.D. Hook ., Fl. Brit. Ind. 6: 107 . 1890; Fischer in Gamble 1928 : 1456; Seidenfaden 1978; 91; Abraham & Vatsala 1981: 202.

Monochilus longilabre Lindl. , Gen. Sp. Orch. 487. 1840.

M. affine Wight , Ic. Pl. Ind. Or.5 (1) : 16 .t. 1728. 1851, non Lindl. 1840.

Described originally by Lindley based on Macrae's collection from Sri Lanka , Z. longilabris is characterized by more or less coarsely denate lobules of lip and one gland in each side of the sac.

Occurrence : Trivandrum , Idukki , Palghat and Wayanad Districts.

Distribution : India to Thailand .

5. Zeuxine strateumatica (l.) Schltr., Bot. Jahrb. 45: 394 . 1911; Fischer in Gamble 1928: 1456; Seidenfaden 1978: 79.

Orchis strateumatica L. Sp. Pl. 943. 1753.

Pterygodium sulcatum Roxb., Fl. Ind. 3 : 45 . 1832.

Zeuxine sulcata (Roxb.) Lindl., Gen. Sp. Orch. 485. 1840; J.D. Hook. 1890 : 106.

Zeuxine bracteata Wight , Ic. Pl. Ind. Or. 5 (1) : 16 .t. 1724. 1851.

Zeuxine brevifolia Wight , ibid .t. 1725. 1851.

Zeuxine roubusta Wight , ibid .t. 1726. 1851.

Linnaeus based his description on Herman's collection from Sri Lanka .

Occurrence : Malappuram and Palghat Districts .

Distribution : Widespread from Afghanistan to New Guinea .

6. Zeuixine sp. nov.

This was collected by Theuerkauf , Wayanad . Ormerod who studied the sketch says it a new species

Zeuxine sp. nov.

a. a single flower, b. side view of flower showing column and petals, c. lip showing the characteristic callus at base.

Occurrence : Wayanad District .

Distribution : Local Endemic.

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