Malaxis macrostachya (Lex.) Kuntze 1891

Photo by © Guillermo Ibarra Manríquez and the CONABIO Orchid Page

Plant and Flowers in situ Arizona

Photo by © Carl Luer

Full Shade CoolColdLATERSummer

Common Name The Long Spiked Malaxis

Flower Size .1" [2.5 mm]

Found in Arizona, Texas, Mexico, Guatemala, El Salvador, Guatemala, Honduras, Nicaragua, Costa Rica, Panama and Venezuela in cloud forests at elevations around 1500 to 3400 meters as a miniature sized, warm to cold growing terrestrial with a globose pseudobulbous growth giving rise to a single, elliptic-ovate, cordate base, abruptly narrowing into the conduplicate, subquadrate, thin, elongate, petiolate base leaf that blooms in the later summer on an erect, 5" [12.5 cm] long, densely many [300 to 400] flowered inflorescence

Synonyms Achroanthes montana (Engelm. ex Rothr.) Greene 1891; Malaxis densiflora A.Rich. & Galeotti ex Ridl. 1888; Malaxis montana (Engelm. ex Rothr.) Kuntze 1891; Malaxis soulei L.O.Williams 1934; Microstylis macrostachya (Lex.) Lindl. 1830; Microstylis montana Engelm. ex Rothr. 1879; *Ophrys macrostachya Lex. 1825

References W3 Tropicos, Kew Monocot list , IPNI

Nov. Veg. Descr. 2(Orchid. Opusc.): 9 Lexara 1825 as Ophrys macrostachya;

Gen. Sp. Orchid. Pl.: 21 Lindley 1830 as Microstylis macrostachya;

Wheeler 6(Botany): 264 1878 publ. 1879 as Microstylis montana;

* Revis. Gen. Pl. 2: 673 Kuntze 1891;

Revis. Gen. Pl. 2: 673 Kuntze 1891 as M montana; ;

Pittonia 2: 183 Greene 1891 as Achroanthes montana;

J. Linn. Soc., Bot. 24: 331 Ridley 1888 as M densiflora;

Ann. Missouri Bot. Gard. 21: 343 L O Williams 1934 as M soulei

The Orchids of Panama L.O. Williams & P Allen 1946 as M soulei drawing good;

Encyclopedia of Cultivated Orchids Hawkes 1965 as M soulei;

Flora de Venezuela Volumen XV Primera Parte Foldats 1969 as M soulei drawing good;

Las Orquedias De El Salvador Vol 2 Hamer 1974 as M soulei drawing/photo ok;

The Native Orchids of the United States and Canada Luer 1975 drawing/photos fide;

Las Orquedias de El Salvador Vol 3 Hamer 1981 as M soulei drawing hmm;

Icones Planetarum Tropicarum Plate 838 Hamer 1984 as M soulei drawing ok;

Orquideas del Estado de Morelos ORQUÍDEA (MÉX.) VOLUMEN 16 NÚMERO ÚNICO enero 2002 as M soulei drawing fide/photo ok;

Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003 as M soulei;

Orchids of Costa Rica Vol 1 Morales 2009 as M soulei photo ok;

Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018 as M soulei;

Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 as M soulei photo fide;

Materials to the Orchid Flora of Colombia Vol IV:157 Szlatchetko & Kolanowska 2023 as Microstylis macrostachya