Styloglossum formosanum var. actinomorphum

輻形根節蘭

endemic

Styloglossum formosanum (Rolfe) T.P. Lin var. actinomorphum (Fukuy.) 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

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同發表文獻

Calanthe actinomorpha Fukuy.

Fukuy., The Botanical magazine, Tokyo 49: 668. 1935. (Bot. Mag. Tokyo, 植物學雜誌)
Phaius actinomorphus (Fukuy.) T. P. Lin

Lin, Native Orchids of Taiwan 1: 224. 1975. (Native Orch. Taiwan)
Calanthe lyroglossa Rchb. f. var. actinomorpha (Fukuy.) P.J. Cribb & D.A. Clayton

Cribb & Clayton, The Genus Calanthe 85. 2013.
Styloglossum lyroglossum (Rchb.f.) T. Yukawa & P.J. Cribb var. actinomorphum (Fukuy.) T. Yukawa & P.J. Cribb

Yukawa & Cribb, Bull. Natl. Mus. Nat. Sci., Ser. B 40(4): 149. 2014.
Styloglossum formosanum (Rolfe) T.P. Lin var. actinomorphum (Fukuy.) T.P. Lin

Lin et al., Taiwania 61(2): 118. 2016.

herb

Plants 40-60 cm tall. Rhizomes short, rigid, densely rooting. Pseudobulbs erect, short clavate, 4-5 cm tall, 5-7 nodose.
Leaves 3 or 4, basal, erect-spreading, oblanceolate, 30-55 cm long, 3-8 cm wide, apex acuminate, base decurrent, glabrous, 5-nerved; petiole 10-20 cm long, sheathing at base.
Scapes erect, glabrous, 40-60 cm long; rachis 10-15 cm long, more or less densely flowered; bracts caducous, whitish, lanceolate, 3-4 cm long, acuminate, membranaceous, much exceeding flowers. Flowers yellowish, not spreading; pedicel and ovary 1.5 cm long, clavate, glabrous; sepals nearly equal, oblongligulate, 8-10 mm long, 3.5-4 mm wide, acute or apiculate at apex, 3-5-nerved; petals elliptic, as long as sepals or nearly so, acute at apex, contracted at base, 3-nerved; lip entire, spurless, similar to petals, concave, more or less undulate-involute, 3-nerved, glabrous, apex truncate, mucronate; column erect, subterete, 4-5 mm long; anther cap circular; pollinia whitish yellow, 1.5 mm long; stigma terminal, under anther; rostellum absent.