Prosthechea pachysepala (Klotzsch) Chiron & V.P.Castro 2003

Photo by Zappi and The Kew Monocot List

Different angle

Photo by Marcos Campacci

Plant and Flowers

Photo by Schlechter

TYPE Drawing of P sururuanum

Drawing by Campacci


Common Name or Meaning Thick Sepal Prosthechea

Flower Size 1.4" [3.5 cm]

Found in Rio de Janiero, Minas Gerais and Sao Paulo states of Brazil on rocks at elevations around 1000 meters as a small sized, warm to cool growing lithophyte with fusiform, laterally compressed, sulcate, 4 to 5 internoded pseudobulbs enveloped in youth by deciduous, imbricating sheaths and carrying usually 3, apical, erect, subcoriaceous, elliptic-elongate, apiculate, dorsally keeled, dark green leaves that blooms in the late spring on a terminal, erect, to 8" [to 20 cm] long, to 20 flowered inflorescence arising through a short spathe and carrying non-resupinate flowers.

Cited as a synonym of P vespa , I have kept it separate because Marcos Campacci is adammant that it is a different species.

Synonyms Anacheilium pachysepalum [Klotsch] Campacci 2004; Anacheilium sururuanum Campacci & Bohnke 2009; Auliza wilsonii Acuña 1939; *Epidendrum pachysepalum Klotzsch 1855; Epidendrum variegatum Hook. 1832; Hormidium variegatum Brieger 1960; Prosthechea sururuana (Campacci & Bohnke) J.M.H.Shaw 2014

References W3 Tropicos, Kew Monocot list , IPNI ;

Bot. Mag. 59: t. 3151 Hkr. 1832 as Epidendrum variegatum nom. illeg.

Bot. Mag. 59: t. 3151 Hkr. 1832 as Epidendrum variegatum nom. illeg. drawing fide

Allg. Gartenzeitung 23: 274 Klotsch 1855 as Epidendrum pachysepalum;

Die Orchideeen Schlechter 1915 as Epidendrum variegatum photo fide;

Die Orchideeen Schlechter 1915 as Epidendrum variegatum

Repert. Spec. Nov. Regni Veg. Beih. 6: 73 Schlechter 1919 as Epidendrum variegatum Hkr;

Bol. Estaçión Exp. Agron. Santiago de las Vegas 60: 85 Acuña 1939 as Auliza wilsoni;

Publ. Ci. Inst. Genét. Esc. Super. Agric. Luis de Queiroz 1: 20 Breiger 1960 Hormidium variegatum nom. superfl.

* Richardiana 3: 174 Chiron & V.P.Castro 2003

Boletim CAOB #54:55 Campacci 2004 as Anacheilium pachysepalum

Icones Orchidacearum Brasilenses Vol II Plate 185 Castro Neto 2006 as Prosthechea pachysepala drawing ok/photo fide;

Colet. Orquídeas Brasil. 7: 218 Campacci & Bohnke 2009 as Anacheilium sururuanum;

Orchidees Du Bresil As Orchideas da Serra Do Castello Vol 3 Chiron & Bolsanello 2013 as Prosthechea pachysepala drawing/photo fide;

Orchid Rev. 122(1305, Suppl.): 17 J M H Shaw 2014 as Prosthechea sururuanum

Colet. Orquídeas Brasil. 13: 532 Campacci 2018 as Anacheilium pachysepalum;