木石斛（植物分类学报）
木斛（台湾植物目录）鸽石斛（台湾植物志）
Dendrobium crumenatum Sw. in Schrad. J. Bot. 2: 237. 1799; Lindl., Gen. Sp. Orch. Pl.: 88. 1830, et Bot. Reg. 25: t. 22. 1839; Hook. in Bot. Mag. 69: t. 4013. 1843; Rchb. f. in Walp. Ann. Bot. Syst. 6: 291. 1861; Hook. f., Fl. Brit. Ind. 5: 729. 1890; Ridl. in J. Linn. Soc. Bot. 31: 270. 1896; Finet in Bull. Mus. Hist. Nat. Paris 6: 297. 1903; J. J. Smith, Fl. Buitenz 6: 330. 1905, et in Fig. Atalas Fl. Java fig. 249. 1908; Kraenzl. in Engler, Pflanzenr. 45 (IV. 50, II. B. 21): 235, fig. 19 (C. D). 1910; Ames in Enum. Philip. Fl. Pl. 1, 3: 347. 1924; Sasaki in Trans. Nat. Soc. Formos. 18: 211. 1928; S. Y. Hu in Quart. J. Taiwan Mus. 26 (1, 2): 154. 1973; 台湾兰科植物 1: 124-125 (图). 1975; 台湾植物志5: 958. 图1578. 1978; Z. H. Tsi in Acta Phytotax. Sin. 18 (4): 435. 1980; Seidenf. in Opera Bot. 83: 200, fig. 138. 1985; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 69. 1990; Seidenf. et J. J. Wood, Orch. Penins. Malay. Singap.: 409, fig. 185. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 210. 1994. ——D. kwashotense Hayata, Icon. Pl. Formos. 4: 41, fig. 13 (d-g) et fig. 15. 1914; Masamune in J. Geobot. 14 (1): t. 14. 1965.
Taiwan (Lu Dao) [Cambodia, India (Andaman Islands), Indonesia, Laos, Malaysia, Myanmar, Philippines, Sri Lanka, Thailand, Vietnam].
No specimens of this species are found. The descriptions above are from ' Orchidaceae of Taiwan ' ( 1975 ) and ' Flora of Taiwan ' ( 1978 ).
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Stems slightly compressed, cylindric, 40-70 cm, upper part slender, with 3 or 4 internodes dilated and fusiform above base, dilated portion of stem to 2 cm in diam., often with longitudinal ridges. |
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Leaves distichous on middle part of stem, ovate-oblong, ca. 6 × 2.5 cm, leathery, with clasping sheaths at base, apex obtuse and unequally bilobed. |
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Inflorescences arising from distal leafless part of stem, usually solitary; floral bracts elliptic, ca. 6 × 2.5 mm. Pedicel and ovary pale red, ca. 15 mm. Flowers lasting for 1 day, initiated 9 days after a rapid temperature drop, strongly fragrant, spreading; sepals and petals white or sometimes tipped pink, lip white, keels yellow, column and anther cap white. Dorsal sepal ovate-lanceolate, 17-22 × ca. 5 mm, slightly obtuse; lateral sepals obliquely ovate-lanceolate, slightly larger than dorsal sepal; mentum narrowly conic, to 15 mm. Petals obovate-oblong, 17-20 × to 7 mm, subacute; lip 24-25 × 13-18(or more) mm, 3-lobed; lateral lobes erect, subobovate, subtruncate; mid-lobe obovate, ca. 12 × 10 mm, margin crenulate and crisped, mucronate; disk with 5 keeled ridges with denticulate margin. Column ca. 3 mm.Flowering September. |
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