Species Information - Mediocalcar arfakense

Mediocalcar arfakense J.J.Sm., Repert. Spec. Nov. Regni Veg. 11 (1913) 559

Type: Gjellerup 1071 p.p. (holo BO; iso L)

Synonyms:

Roots densely covered with root hairs, 1 mm thick. Rhizome creeping, sparsely branching, 3.5-6 mm thick. Cataphylls 5-7, closely appressed, tubular, subglabrous, obtuse to subacute, slightly keeled near the tip. Pseudobulbs 1-6 cm apart, terete, 4-7 mm across; base elongated, enveloping the rhizome, 1.5-4 cm long; free part erect to suberect, (1-)2-3.5 cm long. Leaves one per pseudobulb, sessile, narrowly elliptic to very narrowly obovate (index 4-10.5), (6-)7-14(-20) cm by (10-)12-24 mm; apex obtuse, more or less unequally bilobed, mucronate, with the mucro shorter than the lobules; margins entire; keeled below; coriaceous. Inflorescences in pairs, synanthous, at the base with a narrow scale 3-4 mm long. Peduncle 2.5-3 cm long, at the apex with a triangular, acuminate bract 1 mm long. Pedicel and ovary 13-27 mm long. Flowers urceolate, oblique, more or less laterally flattened, 11-13 mm long. Synsepalum 11-13 mm long and 15-19 mm wide when cut open and flattened; free tips only slightly spreading, 3-4 mm long, acute. Petals narrowly oblong to linear (index 5-6.5), 8.5-10 by 1.5-1.7 mm; apex acute to acuminate; 3-nerved. Lip 9-10 by 3.5-4 mm in natural position, the blade broadly ovate when flattened; claw 3-4 by c. 2.5 mm, auricles rather inconspicuous, reflexed; apex acute to acuminate, straight; margins erect, clasping the column; spur cylindrical, recurved, making a sharp angle with the column, 2.5-3.5 mm long, c. 2 mm wide just below the mouth. Column clavate, 5.5-6.5 mm long, c. 2 mm wide at the apex, foot conspicuous, c. 2 mm long. Fruit narrowly ellipsoid, 33 by 4 mm. (After Schuiteman, 1997)

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