Aa denticulata Schltr. 1920
Photo by © alejorchids and Flickr Colombian Orchids Photo Website
Photo by Alexander Hirtz by Schlechter and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
TYPE Drawing by Schlechter and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
Common Name The Toothed Aa
Flower Size .16" [4 mm]
Found in Colombia and Ecuador in alpine grasslands at elevations of 3000 meters as a medium sized, cold growing terrestrial with a short stem carrying a basal rosette, lanceolate, acute, gradually tapering into a subpetiolate base leaves that blooms in the winter often without leaves present or withering, on a terminal, erect, provided with and completely enveloped by imbricate, diaphanous, recurved apically sheaths, to 20" [50 cm] long, rachis to 4" [10 cm] long, cylindric, densely many flowered inflorescence with ovate to ovate-lanceolate, acute to subacuminate, margins entire to obscurely erose, almost three times longer than the ovary floral bracts and carrying small, globose flowers.
"Easily distinguished from others in Colombia by the sepals shorter than the lip and the denticulate margin of the lip. Additionally the lip is strongly thickened in the center, as a distinct disc backwards." Szlachetko & Kolanowska 2019
Synonyms
References W3 Tropicos, Kew Monocot list , IPNI ;
* Repert. Spec. Nov. Regni Veg. Beih. 7: 48 Schlechter 1920
Flora of Ecuador No 9 Vol 225 [1] Garay 1978;
Icones Planetarum Tropicarum Plate 402 Dodson 1989 drawing ok;
Native Ecuadorian Orchids Vol 1 Dodson & Escobar 1993 drawing fide;
Native Colombian Orchids Vol 5 Dodson 1994 drawing fide;
Flora Of Ecuador # 76 225[2] Dodson & Luer 2005;
Orchids, A Colombian Treasure Vol 1 Ortiz & Uribe 2014 drawing fide
Materials to the Orchid Flora of Colombia Vol 2: 26 Szlachetko & Kolanowska 2019 drawing fide
Materials to the Orchid Flora of Colombia Vol 2: 416 pl 9-10 Szlachetko & Kolanowska 2019 photo fide
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