台湾虾脊兰（中国野生兰科彩色图谱）
阿里山根节兰（台湾植物志）
Calanthe arisanensis Hayata in J. Cool. Sci. Univ. Tokyo 30 (1): 327. 1911, et Icon. Pl. Formos. 4: 65. 1914; Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 233. 1919; S. Y. Hu in Quart. J. Taiwan Mus. 25 (3, 4): 200. 1972; Masamune in J. Geobot. 21 (2): t. 5. 1973; 台湾兰科植物1: 76-77 (图). 1975; 台湾植物志5: 906. 1978; 台湾兰科植物彩色图志1: 168.图20. 1996; 中国兰花全书132, 图6-7 (7, 8). 1998. ——Calanthe sasakii Hayata, Icon. Pl. Formos. 4: 71, fig. 35. 1914.
Forests; 1000-2000 m. Taiwan. |
| |
Plants 30-50 cm tall. Rhizome thick. Pseudobulbs subovoid, 1-1.5 cm, with 3 or 4 sheaths. |
| |
Leaves 2 or 3, well developed and spreading at anthesis, not deciduous; blade elliptic-oblanceolate, 30-50 × 4-7 cm, papery, base cuneate, apex acute; petiole-like base 5-10 cm, usually forming a pseudostem more than 10 cm. |
| |
Scape arising from leaf axil, 40-50 cm, puberulent; rachis 5-10 cm, laxly 5-10-flowered; floral bracts persistent, lanceolate, 10-18 mm, glabrous, apex acuminate. Flowers white, sometimes tinged pinkish purple; pedicel and ovary 20-40 mm, glabrous; ovary with 6 longitudinal winglike ridges. Dorsal sepal ovate-lanceolate, 20-25 × 9-11 mm, base slightly contracted, apex acuminate; lateral sepals ovate-lanceolate, oblique, 25-27 × ca. 10 mm, base contracted, apex acute. Petals narrowly lanceolate, 18-20 × ca. 4 mm, apex acute; lip adnate to entire length of column wings, broadly ovate or orbicular in outline, 13-20 × 18-25 mm, 3-lobed; lateral lobes subfalcate-ovate, 7-11 × 9-12 mm, apex rounded-obtuse; mid-lobe orbicular, ca. 9 × 11 mm, margin erose, apex aristate; disk with 3 shallow and inconspicuous ridges extending midway along mid-lobe; spur curved, cylindric, 10-15 mm, inside densely puberulent. Column 7-9 mm, ventrally puberulent; rostellum 2-lobed; anther cap beaked; pollinia clavate, with caudicles; viscidium subelliptic. Capsule 30-50 × ca. 15 mm, with 6 winglike ridges. Fl. Dec-Mar. 2n = 40*. |
| |
| ||
|
| |
