資料編號: | HK-6985 |
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中文名稱: | 蝦脊蘭屬(2020年新種記錄) |
學名: | Calanthe × dominyi [找同屬植物] |
植物科名: (APG新系統) | ORCHIDACEAE蘭科 [找同科植物] |
標室舊系統 | ORCHIDACEAE蘭科[找同科] |
特別特徵: | 2020年香港新發現的4隻新種記錄 |
資料更新: | 20230406 11:47:41 pm |
備註: Four new additions and a taxonomic amendment to the orchid flora of Hong Kong Robust, tufted terrestrial herb up to 90 cm tall. Pseudobulbs tightly clustered along stout rhizome, conical, 2–4 cm tall, several noded, enclosed in overlapping leaf bases, each bearing 2–7 leaves. Leaves basal, clustered, elliptic, 24–47 cm long, 5–12 cm wide, acute, plicate, papery, dark green to greyish-green, glabrous above, sparsely puberulent to pubescent below, tapering into a grooved petiole-like stalk up to 9 cm long at base. Inflorescences 1 or 2 per plant, emerging laterally from nodes on pseudobulb, erect, sometimes sinuous, cylindrical, 45–85 cm long, light green, finely pubescent, bearing 3–5 scattered sheathing sterile bracts, with a crowded raceme of 28–40 flowers at apex; floral bracts prominent, persistent, ovate, 2–3 cm long, 1–1.5 cm wide, acuminate, light green. Flowers opening widely, ca. 4 cm across, finely puberulent outside, white flushed mauve, with a prominent orange and red callus on the labellum; pedicel and ovary spreading, slender, 3.5–4 cm long, white flushed green; dorsal sepal ovate, 16–18 mm long, 7–8 mm wide, apex acute; lateral sepals elliptic-obovate, oblique, 18–20 mm long, 5.5–7.5 mm wide, apex acuminate-apiculate; petals obovate, 16–18 mm long, 7–8 mm wide, apex rounded-apiculate; labellum obovate-flabellate, 3-lobed, 17–19 mm long, 16–20 mm wide, with an ascending spur 3–3.5 cm long at base; side lobes placed a short away above the base, oblong, slightly oblique, 6–8 mm long, ca. 2.5 mm wide, apex rounded; mid-lobe deeply divided into 2 diverging, flabellate-truncate lobules, each 7–8 mm long and 6–8 mm wide; disc bearing a callus of 3 tubercular ridges in between the side lobes; column stout, 5–6 mm long, thickened at apex; anther ovoid; pollinia 8 in 2 groups of 4, clavate, attached to single obovoid viscidium; stigma concave. Capsule ellipsoid, 3–4 cm long. | |
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