2. Oberonia seidenfadenii (H. J. Su) Ormerod, Taiwania. 47: 242. 2002.
密花鸢尾兰 mi hua yuan wei lan
Hippeophyllum seidenfadenii H. J. Su, J. Exp. Forest Natl. Taiwan Univ. 13: 204. 1999.
Rhizome creeping, ca. 1 mm in diam., branching, nearly completely covered by tubular sheaths. Stems arising at intervals of 6-15 mm along rhizome, 3-5-leaved. Leaves distichous-equitant, laterally compressed, ovate or ovate-lanceolate, 8-15 × 4-7 mm, fleshy, base obliquely articulate. Inflorescence 1.5-2.5 cm, densely many flowered; rachis dilated at middle to 2 mm in diam.; floral bracts ovate, 1.2-1.5 mm, margin obscurely erose. Flowers greenish, sometimes slightly tinged with purple, ca. 1.3 mm in diam.; pedicel and ovary ca. 0.7 mm. Sepals ovate, 0.6-0.7 × 0.4-0.5 mm. Petals linear-oblanceolate, ca. 0.7 × 0.2 mm; lip 3-lobed, basal lateral lobes ca. 1.2 mm, base ± decurrent and slightly surrounding column, saccate-impressed at middle; lateral lobes ovate-triangular, margin obscurely erose-denticulate; mid-lobe bilobed at apex; lobules triangular, 0.2-0.3 mm. Column ca. 0.1 mm. Fl. unknown.
● Epiphytic on tree trunks in broad-leaved forests; 600-1500 m. S Taiwan.
This species is not to be confused with Oberonia seidenfadeniana J. Joseph & Vajravelu (Bull. Bot. Surv. India 13: 344. 1974), described from India.