Phalaenopsis medogensis X.H.Jin & C.B.Ma, 2022
- Dataset
- GBIF Backbone Taxonomy
- Rank
- SPECIES
- Published in
- Ma, Chong-Bo, Wang, Xi-Long, Chen, Wen-Shuai, Liu, Zhen, Jin, Xiao-Hua (2022): Phalaenopsis medogensis (Orchidaceae, Epidendroideae, Vandeae), a new species from Xizang, China. PhytoKeys 214: 39-46, DOI: http://dx.doi.org/10.3897/phytokeys.214.93607, URL: http://dx.doi.org/10.3897/phytokeys.214.93607
Classification
- kingdom
- Plantae
- phylum
- Tracheophyta
- class
- Liliopsida
- order
- Asparagales
- family
- Orchidaceae
- genus
- Phalaenopsis
- species
- Phalaenopsis medogensis
description
Figs 3, 4 墨脱蝴蝶兰
diagnosis
Diagnosis. Phalaenopsis medogensis is morphologically close to P. deliciosa, P. gibbosa and P. lobbii, but readily distinguished from them by its column foot having a pair of triangular wings, and a lip with concave subrectangular lateral lobes, that are white with a deep purplish-red spot in their lower part and hairy and pale yellow with dense rust-coloured spots in their upper part, and a rhombic mid-lobe with a fleshy horned appendage at base and grooved in the centre (Table 1). Epiphytic plant. Roots greenish, elongate, flattened, densely verrucose and prostrate along the twigs or trunk. Stem very short. Leaf 1, oblong-elliptic, 7 - 10 x 3 - 4 cm. Inflorescences 1 or 2, suberect or arching, ca. 12 cm long, unbranched, laxly 5 - 6 flowered; floral bracts ovate-triangular, 5 - 6 mm long. Flowers 1 - 1.2 cm in diameter, yellow; sepals and petals pure yellow, lacking spots or other colouration. Dorsal sepal similar to petals, elliptic, ca. 7 - 8 x 5 mm; lateral sepals broadly triangular, ca. 10 x 6 mm. Petals long elliptic, ca. 9 x 5 mm. Lip 3 - lobed; lateral lobes subrectangular, concave, almost boat-shaped, 2 x 4 mm, lower part white with a deep purplish-red spot and hairy, upper part pale yellow with dense rust-coloured spots; mid-lobe rhombic, ca. 10 x 7 mm, disc grooved, base with a fleshy protuberant appendage; appendage with 2 - 3 teeth on either side, apex with two long horns. Column subparallel to mid-lobe, ca. 5 mm long; column foot ca. 4 mm long, with triangular wings on both sides; anther cap yellow, hemi-spherical.
distribution
Distribution and habitat. Phalaenopsis medogensis is currently known only from the type locality in Motuo, Xizang, China. It is epiphytic on trunks and twigs at elevations of 700 - 900 m along the hot valley of the Yarlungzangbo River.
etymology
Etymology. The epithet " Phalaenopsis medogensis " refers to the type locality of the new species, Medog County, Nyingchi City, Xizang Autonomous Region, China.
materials_examined
Type. China. Xizang Autonomous Region, Nyingchi City, Motuo County, elev. 800 m, 18 Apr 2022, Xiaohua Jin, Chongbo Ma & Tiankai Zhang 38519 (holotype PE!, isotype, PE!).