• Scientific Name: Oberonioides pusillus (Rolfe) Marg. & Szlach.
• Ref: Ann. Naturhist. Mus. Wien, B 112:507. 2010 publ. 2011
• Synonyms:
  • Malaxis microtatantha Tang & F.T.Wang
  • Malaxis tairukouensis S.S.Ying
  • Microstylis microtatantha Schltr.
  • Microstylis minutiflora Rolfe
  • Microstylis pusilla Rolfe
  • Oberonioides microtatantha (Tang & F.T.Wang) Szlach.
• Chinese Common Name: 小沼兰 xiǎo∙zhǎolán
• Family: Orchidaceae
• Genus: Oberonioides
• Distribution: Forests, humid and shaded rocks; 200-1800 m. N Fujian, C Jiangxi, E Taiwan.
• Photo: 04/02/2016, Rui’an, Wenzhou, Zhejiang

Plants terrestrial, small. Pseudobulbs ovoid or subglobose, 3-8 × 2-7 mm, ± enclosed by white, thin and membranous sheaths. Leaf solitary, nearly appressed to substrate; petiole 5-10 mm, amplexicaul; leaf blade ovate to broadly ovate, 1-1.5(-2) × 0.5-1.3 cm, base subtruncate, apex acute. Inflorescence erect; peduncle often purple, slightly compressed, slender, both sides with very narrow wings; rachis 1-2 cm, usually 10-20-flowered; floral bracts broadly ovate, ca. 0.5 mm, ± embracing pedicel. Flowers yellow, very small; pedicel and ovary 1-1.3 mm, conspicuously longer than bracts. Dorsal sepal broadly ovate to nearly oblong, 1-1.2 × ca. 0.7 mm, margin revolute, apex obtuse; lateral sepals triangular-ovate, similar to dorsal sepal in size. Petals linear-lanceolate or sublinear, ca. 0.8 × 0.3 mm; lip inferior, sublanceolate-triangular or ligulate, ca. 0.7 × 0.6 mm, 3-lobed, apex subacuminate; lateral lobes linear or narrowly oblong, 0.6-0.7 × 0.2-0.3 mm, usually erect and enfolding column. Column ca. 0.3 mm, stout. Fl. Apr. (Flora of China)

04/02/2016, Rui’an, Wenzhou, Zhejiang