Pleurothallis hirsuta Ames 1908 SUBGENUS Effusae Luer 2000

Photo by Arturo Carillo

Flower and Leaf

Photo by Dale and Deni Borders.


HOLOTYPE Drawing by Oakes Ames


Common Name The Shaggy Pleurothallis

Flower Size about 1/2" [6 to 12 mm]

Found in Jalisco, Michoacan, Guerrero, Mexico and Morelos states of Mexico as a miniature to small, cool to cold growing,caespitose epiphyte around elevations of 1800 to 2600 meters with slender, terete ramicauls that become triangular in cross-section above and are enveloped basally by a few scarious sheaths and carrying a single, apical, elliptic, obtuse and emarginate apically, keeled near the base abaxially sessile at the base leaf and blooms on an apical, fractiflex, 6" [15 cm] long, few flowered inflorescence arising through a small spathe and is longer than the leaf and has successive opening flowers occuring at any time of the year but especially winter.

Said by most references to be a synonym of P villosa but I feel there are many differences that should keep them separate. I await more information.


References W3 Tropicos, Kew Monocot list , IPNI ;

*Studies in the Family Orchidaceae Fascile 2:270 Ames 1908 drawing fide;

Orchids of Guatemala and Belize Ames & Correll 1952;

Encyclopedia of Cultivated Orchids Hawkes 1965 photo good;

Las Orquedias De El Salvador Vol 2 Hamer 1974 drawing/photo fide;

Miniature Orchids Northen 1980;

Las Orquideas de El Salvador Vol 3 Hamer 1981 drawing ok;

Flora Novo-Galaciana Vol 16 Orchidaceae Mc Vaugh 1985 drawing fide;

Icones Pleurothallidianrum Vol III Systematics of Pleurothallis Luer 1986;

An Introdution to the Orchids of Mexico Wiard 1987 photo fide;

Guatemala Y Sus Orquideas Behar & Tinschert 1998 photo fide;

Icones Pleurothallidinarum Vol XX Systematics of Jostia, Andinia, Barbosella, Barbrodia & Pleurothallis subgen Antilla, Effusia and Restrepioidia Luer 2000 as syn of P villosa