Aa maderoi Schltr. 1920
Photo by © Ladislav Hoskovec and the Botant.cz website
Photo by © Padre Pedro Ortiz Valdivieso
Photo by © Gary Yong Gee and his Orchid Photo Website
TYPE Drawing by Schlechter and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
Original Drawing by © Padre Pedro Ortiz Valdivieso Conserved at the Herbario de la Universidad Javeriana, Bogota Colombia
Common Name Madero's Aa [Colombian Orchid Collector 1900's]
Flower Size 1" [2.5 cm]
Found in Venezuela, Magdalena, Cesar, Quindia, Santander, Boyaca, Cundinamarca, Tolima, Caldas and Cauca departments of Colombia and Napo, Pastaza Pichincha and Tungarahua provinces of Ecuador at elevations around 2800 to 4350 meters as a medium to large sized, cold growing terrestrial with 4 to 6 basal, erect-patent, lanceolate-ligulate, acute, petiolate base leaf that blooms in the spring on an erect, terete, enveloped by 10 to 14, amplexicaul, acuminate, diaphanous, brownish bracts, 28" [70 cm] long, racemose, densely many flowered inflorescence with ovate-lanceolate, acute, irregularily denticulate to lacerate margins, 3 to 5 times longer than the ovary floral bracts and carrying small, white flowers held at the apex.
"Similar to !Aa paleacea but can be separated by the glandular-pilose ovary and sepals, at least in the basal part. Also similar to Aa hartwegii which is now considered a synonym of A maderoi.
Synonyms Altensteinia fragosa Løjtnant 1977
References W3 Tropicos, Kew Monocot list , IPNI ;
* Repertorium Specierum Novarum Regni Vegetabilis 7: 49. Schlechter 1920; Bot. Not. 130: 163 Løjtnant 1977 as Altensteinia fragosa
Flora of Ecuador No 9 225[1] Garay 1978;
Native Ecuadorian Orchids Vol 1 Dodson 1993 photo fide;
Flora Of Ecuador # 76 225[2] Dodson & Luer 2005 drawing ok;
Orchids, A Colombian Treasure Vol 1 Ortiz & Uribe 2014 drawing/photo fide
Materials to the Orchid Flora of Colombia Vol 2: 24 Szlachetko & Kolanowska 2019 drawing fide
Materials to the Orchid Flora of Colombia Vol 2: 415 pl 5-6-7 Szlachetko & Kolanowska 2019 photo fide;
Materials to the Orchid Flora of Colombia Vol 2: 416 pl 8 Szlachetko & Kolanowska 2019 drawing
--------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------
