Sobralia macrantha Lindley 1836 SECTION Abbreviatae

Photo by © Carlos Beutelspacher and The ResearchGate Website

Flower Dissection

Photo by Adam Karremans and The ResearchGate Website


Common Name The Large-Flowered Sobralia

Flower Size to 8" [20 cm]

Found in Guerrero, Oaxaca, Puebla, Veracruz and Chiapas states of Mexico, Belize, Guatemala, El Salvador, Honduras, Nicaragua and Costa Rica at elevations of 90 to 3400 meters on leaf deitrius over rocks, sandy soils or streamside as a large sized terrestrial and rarely epiphytic, warm to cold growing species with terete, clustered stems that are leafy throughout and carrying narrowly to broadly lanceolate, plicate, long acuminate spreading, rigid leaves that blooms on a short, terminal, single flowered inflorescence subtended by a large foliaceous bract and occurs from the spring till autumn with fragrant, short-lived flowers.

Distinguished from other Mexican Sobralia by the erect, cane-like unbranched stems, glabrous leaves and very large 4.4 to 8.2" [11 to 21 cm] wide pink to purple flower.

Differs from the similar S rogersiana in the yellow center of the flower which in S macrantha is quite rounded in front while S rogersiana is rather square or notched in front, the midlobe of S rogersiana is more deeply divided and the seed capsule of S macrantha which is elongate and thinnish while S rogersiana is short and wide. S macrantha is a much shorter plant, to 48" [to 120 cm] long, while S rogersiana grows to 80" [200 cm].

Synonyms Cattleya macrantha Beer 1854; Cyathoglottis macrantha Lem. 1954

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Mexico and Guatemala Bateman 1843 drawing fide; Bonplandia Rchb.f 1856; Die Orchideen Schlechter 1915 photo fide; Atlas des Orchidees Cultivees Constantin 1920 drawing fide; Encyclopedia of Cultivated Orchids Hawkes 1965; Las Orquedias De El Salvador Vol 2 Hamer 1974 drawing/photo not = S rogersiana; AOS Bulletin Vol 49 No 5 1979; Orquídea (Mexico City), n.s., 7[3]: 1979; Las Orquideas de El Salvador Vol 3 Hamer 1981 drawing not = S rogersiana; Icones Planetarum Tropicarum Plate 1170 Dodson 1984 drawing ok; AOS Bulletin Vol 55 No 3 1986 photo fide; An Introdution to the Orchids of Mexico Wiard 1987 photo fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 photo fide; AOS Bulletin Vol 67 No 8 1998 photo fide; Guatemala Y Sus Orquideas Behar & Tinschert 1998 photo fide; AOS Bulletin Vol 68 No 9 1999 photo fide; AOS Bulletin Vol 71 # 4 2002 photo fide; AOS Bulletin Vol 72 #9 2003 photo fide; AOS Bulletin Vol 75 No 8 2006 photo fide; AOS Bulletin Vol 75 No 11 2006 drawing fide; AOS Bulletin Vol 76 No 6 2007 photo not? white flower; AOS Bulletin Vol 76 No 6 2007 photo not purple flower Icones Orchidacearum fascile 10 plate 1090 Hagsater & Soto 2008 drawing fide; Algunas Orquideas De Mexico Tomo 1 Suarez 2012 photo fide; Guia de Orquideas de Chiapas Carlos Rommel Beutelspacher Baigts 2013 photo fide; AOS Bulletin Vol 86 # 1 2017 drawing fide; Pl. Syst. Evol. 303: 868 Baranow, Dudek & Szach. 2017; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018

Sobralia macrantha Lindley 1836 var compacta

Photo by David Jubineau And His Bulbophyllum & Co. Website

Sobralia macrantha var. kienastiana Rchb. f. ? Photo courtesy of Fritz Hamer Copyright © , and the Dr Leslie Garay Archives

A white with yeelow center variety of the previous species

References W3 Tropicos Kew Monocot list , IPNI ; Las Orquedias De El Salvador Vol 2 Hamer 1974 drawing/photo fide;

Sobralia macrantha var splendens ? Photo by Dr Leslie Garay Copyright © , and the Dr Leslie Garay Archives