The New Refugium Botanicum. Diplocaulobium lageniforme

Abstract

Diplocaulobium lageniforme (J.J.Sm.) Kraenzl., Pflanzenr. 340. 1910. Basionym: Dendrobium lageniforme J.J. Sm., Icon. Bogor. 1:86 t. 116 B. 1903. TYPE: [Western New Guinea. Papua:] Hab. Niederl. Neu Guinea, am Sungei Maroka [April 1901], Jaheri s.n. (holotype: BO; isotypes: AMES21504/00090129; U-1460580). Epiphytic, caespitose, erect plant, up to 24 cm tall. Roots slender, flexuous, ca. 9 cm long, 1 mm in diameter. Pseudobulbs obclavate, heteroblastic 5.5–14.0 cm long, with the thickened, conical to ovoid, green- to lime-colored, smooth, fleshy base 1.0–2.5 × 0.5– 1.5 cm, tapering into an erect, elongated, thin, terete stem, the base of pseudobulbs covered with 1–2 brown, lanceolate, acute, papyraceous cataphylls 2.0–4.0 × 0.7–1.4 cm, shedding as the pseudobulb matures. Leaves 1, articulate from the apex of the pseudobulb, erect, coriaceous, elliptical to lanceolate or oblanceolate, obtuse, emarginate, 3.5–7.5 × 1.0–2.3 cm. Inflorescence terminal, one-flowered, arising from a compressed, conical, papyraceous spathe 10–17 mm long at apex of pseudobulb; peduncle abbreviated.