Species Information - Eulophia bicallosa

Eulophia bicallosa (D.Don) P.F.Hunt & Summerh., Kew Bull. 20 (1966) 60

Type: Hamilton s.n. (Nepal)

Synonyms:

• Bletia bicallosa D.Don, Prodr. Fl. Nepal. (1825) 30
  - Type: Hamilton s.n. (Nepal)
• Liparis bicallosa (D.Don) Schltr., Repert. Spec. Nov. Regni Veg. Beih. 4 (1919) 196
• Limodorum bicallosum Hamilton ex D.Don, Prodr. Fl. Nepal. (1825) 30 (in synon.)
• Cyrtopera bicarinata Lindl., Gen. Sp. Orchid. Pl. (1833) 190
  - Type: Wallich 7363 (holo K); Hamilton (K)
• Eulophia bicarinata (Lindl.) Hook.f., Fl. Brit. Ind. 6 (1890) 6
• Graphorchis bicarinata (Lindl.) Kuntze, Rev. Gen. Pl. (1891) 662
• Cyrtopera papuana Kraenzl., Notizbl. Bot. Gart. Berlin-Dahlem 2 (1898) 104 (non Ridl.)
  - Type: Dahl 90 (holo B, lost)
• Eulophia papuana (Kraenzl.) Schltr. in K.Schum. & Lauterb., Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 148
• Cyrtopodium parkinsonii F.Muell. & Kraenzl., österr. Bot. Zeitschr. 44 (1894) 256 ('Cyptopodium')
  - Type: Parkinson 56
• Eulophia brachycentra Hayata, Icon. Pl. Formos. 4 (1914) 72, fig. 36a
  - Type: Kobayashi s.n. (VI-1906, Taiwan, Taito, Shinkogai)
• Eulophia fitzalanii F.Muell., Fragm. 8 (1873) 30
  - Type: ?
• Eulophia merrillii Ames, Orchidaceae 5 (1915) 104
  - Type: Merrill 5452 (holo AMES)
• Eulophia neopommeranica J.J.Sm., Nova Guinea 8, 1 (1909) 26
• Eulophia vanoverberghii Ames, Philipp. J. Sci., C, 7 (1912) 13
  - Type: Vanoverbergh 336 (holo AMES?; iso K)
• Eulophia venosa (F.Muell.) Rchb.f. ex Benth. var. papuana Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 416
  - Type: Schlechter 13777; 18309 (AMES, L, S); Hollrung 201; Parkinson 56; Dahl 90 (syn B, lost)
• Eulophia versteegii J.J.Sm., Bull. Dép. Agric. Indes Néerl. 19 (1908) 24
  - Type: Versteeg 1952 (holo BO; iso L)

Rhizome horizontal, fusiform-oblong, 5-5.5 cm long, consisting of a few internodes. Inflorescence straight, elongated, laxly many-flowered, peduncle 27-85 cm long, covered with partly tubular, acute sheaths, above decreasing in size, 0.5-2.5 cm long, rachis 10-30 cm long. Floral bracts ovate-lanceolate, acuminate, 5-nerved, 0.5-1.3 cm long, up to 0.43 cm wide. Flowers 3 cm diameter. Median sepal erect, apex recurved, oblong-elliptic, acute, or acuminate, strongly convex, nerves 5, dorsally somewhat prominent, 1.37 cm long, 0.5 cm wide. Lateral sepals divaricate, apex channelled, recurved, obliquely lanceolate, acute, at the base narrowed, convex, nerves 5, dorsally prominent, in total 1.6 cm long, 0.53 cm wide. Petals obliquely erect, apex recurved, obliquely obovate-rhombic, obtuse, sometimes shortly apiculate, convex, laxly undulate, nerves 3, dorsally subprominent, 1.1 cm long, 0.68 cm wide. Lip attached to the column-foot, shortly spurred, 3-lobed, inside strongly veined, with 2 parallel, glabrous ribs which are somewhat raised at the rounded apex and clearly shorter than the lateral lobes, extending from the base to the middle of the lip, in between with smaller or hardly developed ribs, with 3 rows of small warts extending from the middle of the lip to the centre of the mid-lobe. Lip when flattened 1.4-1.5 cm long, 1.2 cm wide; spur broadly conical, dorsally compressed, truncate-rounded, 0.17 cm long, 0.27 cm wide; lateral lobes erect, obliquely subovate-triangular, obtuse, convex, overtopping the column; mid-lobe transversely ovate or almost round, emarginate, convex, undulate, 0.47-0.63 cm long, 0.75-0.83 cm wide. Column slender, somewhat curved, dorsally compressed, apex dilated, dorsally grooved, 0.6 cm long, lobes of the clinandrium minutely crenulate, inside with a rib, filament subulate. Stigma large, half round, strongly saccate. Column-foot making an obtuse angle with the column, at almost right angles to the ovary, straight, flat, broader than the column, 0.3 cm long. Ovary 6-grooved, 1 cm long; pedicel more slender than the ovary, 1 cm long.
(After Smith, 1909, as Eulophia versteegii J.J.Sm.)

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