Volume 12 > Part 3 > Year 2022 > Page 870 > Orchidaceae > Oberonia

11. Oberonia fungumolens Burkillwfo-0000252768

Gard. Bull. Straits Settlem. 3: 292. 1924; Seidenf., Dansk Bot. Ark. 25(3): 67, fig. 40. 1968; Dansk Bot. Ark. 33(1): 29, fig. 17. 1978; Segerbäck, Orchids Malaya: 37, figs. 33–34. 1992; Seidenf. & J.J.Wood, Orchids Penins. Malaysia Singapore: 249, fig. 106a–b. 1992; Bunpha et al., Phytotaxa 420: 133, fig. 6L–N. 2019. Fig. 468.

Accepted Name : This is currently accepted.

Description : Stems 23–24 cm long (to base of the free part of the inflorescence). Leaves not articulate, bilaterally flattened, in lateral view obliquely lanceolate, widest in the proximal part, acute (apex straight to slightly incurved; longest leaf 5.3–5.5 by ca 1.5 cm. Inflorescence lax (flowers not touching each other); free part of peduncle ca 0.9 cm long, bearing only a few bract-like scales; rachis 12–16 cm long, non-succulent, smooth (i.e., not pitted); floral bracts subacuminate, pubescent on the abaxial surface, ca 1.8 mm long. Flowers light yellow, pedicelled, ca 2.7 mm wide. Sepals: dorsal sepal widely spreading, elliptic-oblong, rounded, ca 1.3 by 1 mm, entire; lateral sepals widely spreading. Petals widely spreading, narrowly ovate, obtuse, ca 1.3 by 0.6–0.7 mm, entire. Labellum more or less parallel to the column, slightly concave at base, obscurely 3-lobed, ca 2.8 mm wide across the side lobes, glabrous, without ornaments; side lobes insignificant, spreading, entire; mid-lobe bilobulate (sinus ca 0.7 mm deep), ca 1.4 by 2.8 mm, entire; lobules rounded. Column subterete, front margins not developed into wings; rostellum acute. Ovary describing a more or less right angle to the rachis (when the flower is fully open and still fresh), pubescent.

Thailand : PENINSULAR: Phatthalung (“Kao Den” – Kerr 0576 -K).

Distribution : Peninsular Malaysia (type).

Ecology : Epiphytic in tropical evergreen rain forests, ca 200 m alt. Flowering: April.

Vernacular : Ueang phaen pia dok yai (เอื้องแพนเปียดอกใหญ่).