筒穗無耳沼蘭檢視原始碼討論檢視歷史
| 筒穗無耳沼蘭 |
 |
|
中文名:筒穗無耳沼蘭 拼 音:tǒng suì wú ěr zhǎo lán 學 名:Dienia cylindrostachya Lindl. 界:植物界 亞 界:綠色植物亞界 總 門:輪藻總門 門:木賊門（有胚植物門） 亞 門:木賊亞門（維管植物亞門） 綱:木蘭綱（被子植物綱） 亞 綱:百合亞綱 超 目:天門冬超目 目:天門冬目 科:蘭科 屬:無耳沼蘭屬 種:筒穗無耳沼蘭 |
筒穗無耳沼蘭(tǒng suì wú ěr zhǎo lán)，學名 Dienia cylindrostachya Lindley，異名：Microstylis cylindrostachya Malaxis cylindrostachya ，蘭科，無耳沼蘭屬植物。分布於西藏自治區。 [1]
形態特徵
Plants terrestrial, 20-35 cm tall. Pseudobulbs conic, ca. 1 × 1 cm. Stem arising from base of pseudobulb, sheathed, 3-10 cm; sheaths 2 or 3, clasping, 2-3 cm.
Leaf 1, long petiolate; petiole tubular, sheathing stem, 2-5 cm; blade elliptic or orbicular to subspatulate, 4-9 × 3-4.5 cm, finely reticulately veined, apex obtuse.
Inflorescence racemose, cylindric, densely many flowered; peduncle ridged, 5-10 cm; rachis ridged, (2.5-)5-14 cm; floral bracts lanceolate, 2-2.5 mm, apex acute.
Flowers ca. 2 mm, uniformly yellowish green; pedicel and ovary linear, not twisted, 1.5-2 mm. Sepals subsimilar, ovate, 2-3 × 0.4-0.5 mm, apex acuminate.
Petals linear-lanceolate, 1-1.9 × 0.4-0.5 mm, apex acute; lip fleshy, broadly ovate, 1.5-2 × 1-2 mm, margin thickened, with a raised central ridge, base weakly saccate, margin denticulate, apex apiculate to mucronate. Column stout, ca. 0.25 mm tall.
分類文獻
FOC >> Vol.25 (2009) >> Orchidaceae >> Dienia 1.Dienia cylindrostachya Lindley Gen. Sp. Orchid. Pl. 22. 1830.
筒穗無耳沼蘭 tong sui wu er zhao lan Malaxis cylindrostachya (Lindley) Kuntze; Microstylis cylindrostachya (Lindley) H. G. Reichenbach.
產地生境
Terrestrial. Xizang [Bhutan, India, Nepal].