Pleurothallis chrysantha Lindl. 1859 SUBGENUS Acianthera [Scheidw.] Luer 1986

Photo courtesy of Piotr Markiewicz and his Flickr Orchid Photo Website

Another Closeup? - notice cupped blunt petals

Photo courtesy of Noe' Chueng and Cal Photos Orchid Photo Website


Flower Closeup

Photo courtesy of Weyman Bussey

Another Color Form

Photo courtesy of Noble Bashor


Drawings by Carl Luer


Common Name The Golden Yellow Pleurothallis

Flower Size .2" long [5mm]

Oaxaca Mx., 2103m elev., First crest on Puerto Escondido rd, epiphytic on oaks, common

Found in Jalisco, Michoacan, Guerrero, Mexico and Oaxaca states of Mexico on sea-ward facing slopes or in humid sub-deciduous forests at elevations of 1500 to 2400 meters as a small sized, cool to cold growing, caepitose to shortly repent epiphyte with stiff, erect ramicauls carrying a single, apical, thick, rigid, sessile, oblong, obtuse apically and below into the elongate, channeled, petiolate base leaf that blooms on a apical, arising through a narrow spathe, short, stiff, erect, fasciculate, 1" [2.5 cm] long, few [4 to 5] flowered inflorescence with thin, infundibular, just shorter to just longer than the ovary floral bracts and holding the flowers close to the base of the leaf.

"Closely allied with P circumplexa differing mainly in the lack of decurrance of the margins of the leaf on the wings or the ramicaul. A short raceme of yellowish flowers is borne at the base of the leaf. As in P circumplexa the petals are minutely serrate and the lip is thick with erect, broadly rounded margins below the middle.

Synonyms Acianthera chrysantha (Lindl.) Pridgeon & M.W.Chase 2001; Humboldtia chrysantha (Lindl.) Kuntze 1891; Humboltia chrysantha (Lindl.) Kuntze 1891; Pleurothallis aurea A.Rich. & Galeotti 1845; Pleurothallis hartwegiifolia H.Wendl. & Kraenzl 1900

References W3 Tropicos, Kew Monocot list , IPNI ;

Xenia Orchidaceae Vol 3 Reichenbach 1896 drawing;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;

Lindleyana Vol 16 No 4 2001 as Acianthera chrysantha;

Icones Orchidacearum 5 & 6 Orchids Of Mexico Parts 2 & 3 Plate 503 Hagsater, Soto 2002 as Acianthera chrysantha drawing fide;

Icones Pleurothallidinarum Vol XXVI Pleurothallis subgenus Acianthera and Three Allied subgenera, A Second Century of new Species of Stelis of Ecuador, Epibator, Ophidion and Zootrophion Luer 2004 Drawing fide;

Orchids of Mexico Hagsater, Soto, Salazar, Jimenez Lopez & Dressler 2005 as Acianthera chrysantha;

Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera hartwegifolia photo fide;

Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera chrysantha photo fide