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Octarrhena goliathensis
Octarrhena goliathensis J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 2 (1911) 20
Type: Kock, de 95 (syn BO); 150 (syn BO)
Synonyms:
- Chitonanthera goliathensis (J.J.Sm.) J.J.Sm., Nova Guinea 14 (1929) 483
Stem erect, short, leafy, to 2.5 cm long, internodes 0.2-0.3 cm long. Leaves distichous, erect-patent, laterally compressed, slightly falcate, lanceolate-subulate, acute, narrowed at the base, the sides near the middle slightly concave, leaf-blade and sheath impressed-punctate, carnose, 0.55-0.9 by 0.14-0.2 cm; sheaths much surpassing the internodes, overlapping, tubular, laterally compressed, 3-ribbed in upper part, to 0.28 cm wide, narrowed in the basal part. Inflorescences axillary, erect, elongated, laxly several-flowered, peduncle thin, especially in the upper part laterally compressed, 5.5-7.5 cm long, with 3-4 small, tubular, to 0.55 cm long sheaths; rachis curved, slightly ribbon-like, ensiform, to 5 cm long 0.15-0.18 cm wide, internodes 0.6-0.8 cm long. Floral bracts patent, triangular, acute, concave, keeled, 0.2-0.3 cm long. Flowers alternate, distichous, secund, 0.33 cm wide, 0.3 cm long. Sepals at the base shortly connate, widely patent. Median sepal ovate-orbicular, slightly acuminate, obtuse, concave, 1-nerved, 0.17 by 0.18 cm. Lateral sepals obliquely orbicular-ovate, slightly acuminate, subobtuse, 1-nerved, 0.16 cm long and almost as wide. Petals very small, nearly semiorbicular, slightly acuminate, obtuse, convex, puberulous, 1-nerved, 0.03 cm long, 0.06 cm wide. Lip deflexed, triangular, narrowly obtuse, especially in the basal part puberulous-finely ciliate, 1-nerved, 0.13 cm long, slightly more than 0.1 cm wide. Column strongly upwards curved, in front below the stigma convex, in total 0.13 cm long, wings erect, oblong-triangular, falcate-incurved, conduplicate-concave with puberulous apex. Anther cucullate, subreniform-triangular, obtuse, lobulate, hardly 0.05 cm wide. Rostellum erect, broadly triangular, obtuse. Ovary pedicellate, , clavate, 0.2 cm long.
(After Smith, 1913)
Flowers yellow.
Terrestrial on mossy rocks in swampy subalpine vegetation; 3250 m.
Malesia (New Guinea, endemic).
Papua (Indonesia). See map
Cool growing terrestrial, requires light position.
March, April.
- Smith, J.J., Nova Guinea 12, 1 (1913) 95, t. 26, fig. 80
- Royen, P. van, Alp. Fl. New Guinea 2 (1979) 755, fig. 261
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Podochileae
- Subtribe Thelasiinae
- Genus Octarrhena
- Species Octarrhena goliathensis
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Octarrhena goliathensis
Octarrhena goliathensis J.J.Sm., as Chitonanthera goliathensis (J.J.Sm.) J.J.Sm., floral analysis, drawing J.J. Smith, based on de Kock 95
Octarrhena goliathensis
Octarrhena goliathensis J.J.Sm., drawing P. van Royen in Alp. Fl. New Guinea 2 (1979) 755, fig. 261
Octarrhena goliathensis
Octarrhena goliathensis J.J.Sm., as Chitonanthera goliathensis (J.J.Sm.) J.J.Sm., habit, drawing J.J. Smith, based on de Kock 95
Octarrhena goliathensis
Octarrhena goliathensis J.J.Sm., herbarium sheet, Kock, de 150 (syntype specimen BO)