尖刀唇石斛Dendrobium heterocarpum lindl.
别名:异果石斛;
科名:兰科 Orchidaceae
属名:石斛属 Dendrobium
《中国植物志》第19卷096页
23.尖刀唇石斛(植物分类学报)
Dendrobium heterocarpum Lindl., Gen. Sp. Orch. Pl.: 78. 1830; Hook. in Bot. Mag. 79: t. 4708. 1853; Hook. f., Fl. Brit. Ind. 5: 737. 1890; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 53, pl. 77. 1898; Kraenzl. in Engler, Pflanzenr. 45 (IV. 50, II. B. 21): 45. 1910; Schltr. in Fedde Repert. Sp. Nov. 10: 37. 1911; Ames in Enum. Pnilip. Fl. Pl. 1, 3: 349. 1924; H. Hara et al., Enum. Flow. Pl. Nepal 1: 39. 1978; Z. H. Tsi in Acta Phytotax. Sin. 18 (4): 440. 1980; Seidenf. in Opera Bot. 83: 50, fig. 26. 1985; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 74. 1990; Seidenf., l. c. 114: 229. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 189. 1994; Z. H. Tsi et S. C. Chen, l. c. 33 (3): 291. 1995; Z.H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 78, pl. 92. 1997; 中国兰花全书: 166. 图6-14 (2). 1998.
茎常斜立,厚肉质,基部收狭,向上增粗,多少呈棒状,长5-27厘米,粗1-1.5厘米,不分枝,具数节,节多少肿大,节间长2-3厘米,鲜时金黄色,干后琉璜色带污黑色。叶革质,长圆状披针形,通常长7-10厘米,宽1.2-2厘米,先端急尖或稍钝,基部具抱茎的膜质鞘。总状花序出自落了叶的老茎上端,具1-4朵花;花序柄长2-3毫米,基部被2-3枚膜质鞘;花苞片浅白色,膜质,宽卵形,长4-9毫米,先端钝;花开展,具香气,萼片和花瓣银白色或奶黄色;花梗连同子房与萼片同色,长约2厘米;中萼片长圆形,长2.7-3厘米,宽约8毫米,先端钝,具5条主脉和多数支脉;侧萼片斜卵状披针形,与中萼片等大,先端近锐尖,基部稍歪斜,具7条主脉和许多支脉;萼囊圆锥形,长约7毫米;花瓣卵状长圆形,长2.5-2.8厘米,宽9-10毫米,先端锐尖,边缘全缘,具5条主脉和多数支脉;唇瓣卵状披针形,与萼片近等长,不明显3裂;侧裂片黄色带红色条纹,直立,中部向下反卷;中裂片银白色或奶黄色,先端锐尖,边缘全缘,上面密布红褐色短毛;蕊柱白色,长约3毫米,前面(腹面)两侧具紫红色而内面为黄色,基部稍扩大,具黄色的蕊柱足;药帽圆锥形,长约2.5毫米,密布细乳突,前端边缘具细齿。花期3-4月。
产云南南部至西部(勐腊、潞西、腾冲、镇康)。生于海拔1500-1750米的山地疏林中树干上。分布于斯里兰卡、印度、尼泊尔、锡金、不丹、缅甸、泰国、老挝、越南、菲律宾、马来西亚、印度尼西亚。模式标本采自尼泊尔。
形态特征:茎常斜立,厚肉质,基部收狭,向上增粗,多少呈棒状,长5—27厘米,粗1— 1.5厘米,不分枝,具数节,节多少肿大,节间长2—3厘米,鲜时金黄色,干后琉璜 色带污黑色。叶革质,长圆状披针形,通常长7--10厘米,宽1.2—2厘米,先端急尖 或稍钝,基部具抱茎的膜质鞘。总状花序出自落了叶的老茎上端,具1—4朵花;花序 柄长2—3毫米,基部被2—3枚膜质鞘;花苞片浅白色,膜质,宽卵形,长4—9毫米, 先端钝;花开展,具香气,萼片和花瓣银白色或奶黄色;花梗连同子房与萼片同色,长 约2厘米;中萼片长圆形,长2.7—3厘米,宽约8毫米,先端钝,具5条主脉和多数 支脉;侧萼片斜卵状披针形,与中萼片等大,先端近锐尖,基部稍歪斜,具7条主脉和 许多支脉;萼囊圆锥形,长约7毫米;花瓣卵状长圆形,长2.5—2.8厘米,宽9—10 毫米,先端锐尖,边缘全缘,具5条主脉和多数支脉;唇瓣卵状披针形,与萼片近等 长,不明显3裂;侧裂片黄色带红色条纹,直立,中部向下反卷;中裂片银白色或奶黄 色,先端锐尖,边缘全缘,上面密布红褐色短毛;蕊柱白色,长约3毫米,前面(腹面) 两侧具紫红色而内面为黄色,基部稍扩大,具黄色的蕊柱足;药帽圆锥形,长约2.5毫 米,密布细乳突,前端边缘具细齿。 花期3—4月。
产地分布:产云南南部至西部(勐腊、潞西、腾冲、镇康)。生于海拔1500—1750米的山地疏 林中树干上。分布于斯里兰卡、印度、尼泊尔、锡金、不丹、缅甸、泰国、老挝、越 南、菲律宾、马来西亚、印度尼西亚。模式标本采自尼泊尔。
参考文献:Dendrobium heterocarpum Lindl,Gen.Sp.Orch.P1.:78.1830;Hook.In Bot.Mag.79:t,4708.1853;Hook.F,F1.Brit.Ind.5:737.1890;King et Pantl.In Ann.Bot.Gard.Calcutta 8:53,p1.77.1898;Kraenzl.In Engler, Pflanzenr.45(Ⅳ.50,Ⅱ.B.21):45,1910;Schltr.inFedde Repert.Sp.Nov.10: 37.1911;AmesinEnum.Pnilip.F1.P1.1,3:349.1924;H.Hara et a1·,Enum. Flow.P1.Nepall:39.1978;2.H.TsiinActaPhytotax.Sin.18(4):440.1980; Seidenf,inOperaBot.83:50,fig.26.1985;Averyanov,Vasc.P1.Syn.Vietnam. F1.1:74.1990;Seidenf·,L c.114:229.1992;Averyanov,Iden.Guide Vier— nalB.Orch.:189.1994;Z,H.Tsi et S.C.Chen,1.C.33(3):291.1995;Z. H.Tsi,S.C.ChenetK.Mori,WildOrch.China:78,p1.92. 1997; 中国兰花全 书:166.图6一14(2).1998.
《Flora of China》 Vol. 25 (2009)
Dendrobium heterocarpum Wallich ex Lindley Gen. Sp. Orchid. Pl. 78. 1830.
尖刀唇石斛 jian dao chun shi hu
Callista aurea (Lindley) Kuntze; C. heterocarpa (Wallich ex Lindley) Kuntze; Dendrobium atractodes Ridley; D. aureum Lindley; D. minahassae Kraenzlin.
Stems often ascending, ± clavate, 5-27 cm, 1-1.5 cm in diam., thickly fleshy, base contracted, thickened toward apex, unbranched, with several ± swollen nodes, internodes 2-3 cm, golden yellow when fresh, sulfur-yellow tinged with dirty black when dry. Leaves oblong-lanceolate, usually 7-10 × 1.2-2 cm, leathery, base with clasping sheath, apex acute or slightly obtuse; leaf sheath papery. Inflorescence a raceme arising from apical part of deciduous old stem, 1-4-flowered; peduncle 2-3 mm; basal sheaths 2 or 3, membranous; floral bracts pale white, broadly ovate, 4-9 mm, membranous, apex obtuse. Pedicel and ovary ca. 2 cm. Flowers scented, spreading; sepals and petals silver-white or creamy yellow, lateral lobes of lip yellow with red striation, mid-lobe silver or creamy yellow, column white, purplish red on sides, yellow on inner surface, foot yellow. Dorsal sepal oblong, 27-30 × ca. 8 mm, 5-veined, apex obtuse; lateral sepals obliquely ovate-lanceolate, ca. as large as dorsal sepal, main veins 7, secondary veins many, base slightly oblique, apex subacute; mentum conic, ca. 7 mm. Petals ovate-oblong, 25-28 × 9-10(or more) mm, main veins 5, secondary veins many, margin entire, apex acute; lip ovate-lanceolate, nearly as long as sepals, inconspicuously 3-lobed; lateral lobes erect, middle part downcurved, adaxially with dense, short, reddish brown hairs, margin entire; mid-lobe acute. Column ca. 3 mm, front (adaxial surface) base slightly dilated; anther cap conic, ca. 2.5 mm, densely finely papillate, front margin denticulate.
Epiphytic on tree trunks in open forests; 1500-1800 m. S and W Yunnan [Bhutan, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Philippines, Sri Lanka, Thailand, Vietnam].
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