The New Refugium Botanicum. Maxillaria rodrigueziana

Abstract

Maxillaria rodrigueziana J.T. Atwood & Mora-Ret., Icones Plantarum Tropicarum 14(1):t. 1361. 1989. Type: Panamá. Province of Coclé: El Copé on the Pacific side ½-hour walk from the sawmill, elevation 2,400 feet (730m),October 16, 1979, T. Antonio 2137 (holotype, MO; isotype, SEL). Epiphytic, sympodial, caespitose, large herb, up to 50 cm tall. Roots growing from the rhizome at the base of the pseudobulb, fleshy, white, up to 1 mm in diameter. Rhizome short, stout, concealed by appressed, imbricating, scarious sheaths. Pseudobulbs apically unifoliate, ovoid, rugose, 5–7 × 3–4 cm, subtended by one large, lanceolate-triangular, obtuse, imbricating, scarious sheath. Leaves elliptic, coriaceous, obtuse to rounded, grass green, blade 15–30 × 4.5–7.5 cm, supported by a distinct, thick petiole 3–11 cm long. Inflorescence 1–3 per pseudobulb, singleflowered, erect, growing from the base of the newly developingpseudobulbs,up to 20 cm long; covered by 4–6, thin, imbricating, tightly adpressed bracts. Floral bracts much longer than the ovary, lanceolate, acute, conduplicate, apically loose, to 6 cm long, translucent. Pedicellate ovary teretesubclavate, ca. 2.5 cm long.