Peristylus densus (Lindl.) Santapau & Kapadia, J.
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https://doi.org/ 10.11646/phytotaxa.481.1.1 |
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persistent identifier |
https://treatment.plazi.org/id/03D887B7-8193-FF3E-FF04-F9FEFAE0FDBA |
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treatment provided by |
Marcus |
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scientific name |
Peristylus densus (Lindl.) Santapau & Kapadia, J. |
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Peristylus densus (Lindl.) Santapau & Kapadia, J. View in CoL Bombay Nat . Hist. Soc. 57: 128, 1960
Basionym: Coeloglossum densum Lindl. View in CoL , Gen . Sp. Orchid. Pl.: 302, 1835.
Heterotypic synonyms: Coeloglossum brevifolium Lindl. View in CoL , Gen . Sp. Orchid. Pl.: 302, 1835. Habenaria cubitalis View in CoL (L.) R.Br. ex Spreng. var. brevifolia (Lindl.) Hook. View in CoL f., Fl. Brit. India 6: 157, 1890. Peristylus cubitalis View in CoL (L.) Kraenzl. var. brevifolius (Lindl.) Kraenzl., Orchid. Gen . Sp. 1: 503, 1898. Type:— MYANMAR (not ‘Nepal’). Tanintharyi Region: Dawei District, 16 Dec 1827, Wallich s.n. (not ‘7041’) (holotype: K-LINDL; isotypes: K-W, LINN).
Platanthera stenostachya Lindl. ex Benth. , Hooker’s J. Bot. Kew Gard. Misc. 7: 37, 1855. Habenaria stenostachya (Lindl. ex Benth.) Benth., Fl. Hongk. : 362, 1861. Peristylus stenostachyus (Lindl. ex Benth.) Kraenzl., Orchid. Gen . Sp. 1: 502, 1898.
Specimens examined:— CHIN. Falam District : 1830 m, Oct 1910, Venning 58 ( K) ; Mindat District : 21 Jul 2007, Tanaka s.n. ( TNS [s]) ; same loc., 2300 m, 9 Aug 2008, Yasuda 060076 ( MBK) ; same loc., 2030−2295 m, 27 Jun 2009, Tanaka & Yukawa 081255 ( MBK) ; same loc., 1830 m, 11 Jul 2011, Ling Shein Man 087536 ( MBK) ; same loc., 1750 m, 23 Oct 2011, Ling Shein Man 087624 A ( MBK) ; same loc., 2400 m, 29 Jul 2013, Mu Mu Aung et al. 092772 ( MBK) ; same loc., 2075 m, 20 Aug 2013, Fujikawa et al. 094059 ( MBK) ; same loc., 2065 m, 24 Aug 2013, Fujikawa et al. 094371 ( MBK) . MANDALAY. Pyinoolwin District : fide Aung et al. (2020: 95) . SHAN. Loilen District : 25 Jul 1911, Robertson 380 ( K) ; Kengtung District : 1675 m, Aug 1909, MacGregor 821 ( E) . TENASSERIM. Parish 231 (not located), fide Parish (1883: 200; as Habenaria stenostachya ) . MON. Mawlamyine District : Lobb 363 ( K) . TANINTHARYI. Dawei District : type .
Distribution:— India, the Himalayas, Myanmar, Thailand, Indochina and southwestern, southern and southeastern China.
Note:— Several collections from Mindat District (Chin State) differ from typical P. densus by having long, threadlike lip side lobes that are three to four times as long as the midlobe. In this respect they are superficially similar to P. tipulifer (C.S.P.Parish & Rchb.f.) Mukerjee, P. tentaculatus (Lindl.) J.J.Sm. , P. calcaratus (Rolfe) S.Y.Hu and P. monticola (Ridl.) Seidenf. However , these specimens are clearly different from the first two species by having elongate, cylindric, only slightly clavate lip spurs, and from the last two species in their significantly larger flower size.
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