Phragmipedium exstaminodium Castańo, Hágsater & E.Aguirre 1984
Photos by © Danny Lentz
Better View of lack of the Staminode
Photo/TYPE Drawing by © Eric Hágsater
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Common Name The Without a Staminoda Phragmipedium - In Chiapas - Tanal de Bigotes
Flower Size 3.2 to 4" [8 to 10 cm] wide
Found in Chiapas state of Mexico and Guatemala in wet montane rainforests and elfin forests at elevations around 950 to 1350 [1700] meters as a small to medium sized, warm to cool growing epiphytic or rupicolous orchid with disitichous, conduplicate, ligulate, obtuse to subacute, unequally bilobed, coriaceous, carinate leaves held in a losose, fan-shape that blooms in the late spring and early summer on an axillary, racemose, 10 to 20" [25 to 50 cm] long, velvety, 1 to 4, simultaneously flowered inflorescence.
"The immediately obvious feature which separates P. exstaminodium from the other members of the genus is the lack of the staminode, a conspicuous structure formed from a sterile stamen which is universal in all species known previously. The two fertile stamens, lacking their covering shield, are plainly visible, as is shown in the photograph. This character is invariable in the Chiapas plants, and it would seem to be the result of natural selection, with important implications for the mechanism of pollinization." Castańo, Hágsater & E.Aguirre 1984
Synonyms Paphiopedilum exstaminodium (Cast. Ram., Hágsater & J. Aguirre) V.A. Albert & B. Pettersson 1994; Phragmipedium humboldtii subsp. exstaminodium (Cast. Ram., Hágsater & J. Aguirre) J.T. Atwood & Dressler 1998; Phragmipedium warscewiczii subsp. exstaminodium (Castańo, Hágsater & E.Aguirre) Christenson 2006
References W3 Tropicos, Kew Monocot list , IPNI ;
* ORQUIDEA (Méx .) 9(2) 193 MAYO Castańo, Hágsater & E.Aguirre 1984 drawing/photo fide;
Lindleyana 9: 137 V.A.Albert & Börge Pett. 1994 as Paphiopedilum exstaminodianum;
Rudolf Schlechter Die Orchideen Band 1C lieferung 40 pg 2492 - 2564 Brieger 2000;
Icones Orchidacearum 5 - 6 Orchids of Mexico Part 2 - 3 Plate 635 Hagsater & Soto 2002 as P humboldtii subsp exstaminodium drawing fide;
AOS Bulletin Vol 72 No 11 2003 photo fide;
Orquideologia Vol. 23 No 2 2004 photo fide;
Australian Orchid Review Vol 69 No 5 2004 photo;
J. Orchideenfr. 13: 143 Christenson 2006 as Phragmipedium warscewiczii subsp. exstaminodium
AOS Bulletin Vol 79 #1 2010 photo fide;
Orchid Rev. 119(Suppl.): 84 J.T.Atwood & Dressler ex J.M.H.Shaw 2011 as P humboldtii subsp. exstaminodium
Guia de Orquideas de Chiapas Carlos Rommel Beutelspacher Baigts 2013 photo fide;
Algunas Orquideas de Mexico Tomo 1 Suarez 2013 photo fide;
Slipper Orchids Trop. Amer.: 204 P.J.Cribb & Purver 2017 as Phragmipedium humboldtii var. exstaminodium
Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018
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