Styloglossum formosanum

台灣根節蘭

Styloglossum formosanum (Rolfe) T.P. Lin

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

Lin et al., Taiwania 61(2): 118. .

台灣首次記錄發表文獻

同發表文獻

異名

Calanthe formosana Rolfe

Rolfe, Annals of Botany. Oxford 9(33): 157. 1895. (Ann. Bot. (Oxford))
Calanthe yushuni Mori & Yamam.

Mori & Yamam., Journal of the Society of Tropical Agriculture 4: 188. 1932. (J. Soc. Trop. Agr.)
Calanthe pulchra (Bl.) Lindl. var. formosana (Rolfe) S. S. Ying

Ying, Coloured illustrations of indigeous orchids of Taiwan 1: 430. 1977. (Col. Ill. Indig. Orch. Taiwan)
Calanthe speciosa auct. non (Bl.) Lindl.

Su, Quarterly journal (Bulletin) of the experimental forest of National Taiwan University 4(3): 87. pl. 3. 1990. (Quart. J. Exp. For. Natl. Taiwan Univ.)
Calanthe clavata auct. non Lindl.

S. S. Ying, Coloured illustrations of indigeous orchids of Taiwan 1: 174. 1996. (Col. Ill. Indig. Orch. Taiwan)

各語言俗名

中

台灣根節蘭.
日

ゆうしゅんきえびね. たいわんえびね.

特徵描述

生活型

herb

形態特徵

Plants 50-70 cm tall. Rhizomes regularly present, fleshy, to 1 cm in diam., densely rooting at nodes. Pseudobulbs elongate-ovoid or clavate, 4-5 cm long, 1 cm in diam., 5 or 6 nodose, often covered by leaf sheaths.
Leaves 5-10, nearly distichous, oblanceolate, 40-60 cm long, ca. 7-8 cm wide, apex acuminate, base narrowed into a short petiole, mainly 5-nerved.
Scapes 30-40 cm long, with 2 or 3 tubular scales on lower portion, flower bearing portion 10-15 cm long; bracts linear-lanceolate, whitish, 2.5-3 cm long, caducous; pedicel and ovary 15-20 mm long, glabrous. Flowers yellow; dorsal sepal oblong, 12-13 mm long, 4-5 mm wide, acuminate at apex, truncate at base, 5-nerved; lateral sepals similar but slightly oblique; petals obovate, 12 mm long, 6-7 mm wide, acute at apex, contracted at base, 7-nerved, concave; lip connate with column at base, 7-9 mm long, spurred, 3- lobed, lateral lobes ovate-triangular or nearly rectangular, 2.5 mm long, terminal lobe obovate-rectangular, 5 mm long, truncate and slightly undulate at apex, unlobed or slightly 2-lobed near tip, retuse or cuspidate at sinus, disc with 2 raised calli at base, spur 8-10 mm long, slightly curved forward; column stout, 4-5 mm long, connate entire length with base of lip; anther ovate-lanceolate, 3 mm long; pollinia slender, clavate, 2 mm long, attached by short caudicles to viscidium, viscidium linear, 3 mm long; stigma solitary, semilunate; rostellum 3 mm long, acuminate, distinctly protruding beyond column.
This species is very similar to <i>C. lyroglossa</i> in habit, but differs from it in the lip of the flowers having emarginate, truncate and slightly undulate midlobes, and in the longer spur curved forward.

分布

台灣 : forests below 1,500 m in the northern and southern mountainous regions.
世界 : Java, Sumatra and Malaysia, northward to southern China (Hainan and Hong Kong) and the Ryukyus.

引證標本

TAIPEI: Fushihshan, Su & Chen 6747; Wulai, Su & Chen 7405. PINGTUNG: Lanjenchi, Su & Chen 6979; Linungshan, Su 8583. TAITUNG: Chushuipo, Kudo & Mori s. n. Dec 1936; Lanyu Is., Lin s. n. 1972.