Aa calceata (Rchb.f.) Schltr. 1912

TYPE Collection Sheet by © Mandon

Common Name The Limestone Aa

Flower Size

Found in Peru and Bolivia in alpine and subalpine forests at elevations of 3400 to 4400 meters as a small sized, cold growing terrestrial that blooms without leaves in the fall, winter and spring on an erect, terminal, peduncle, to 6" [15 cm] long, thin, provided with numerous, acute, hyaline sheathing bracts, rachis, narrow, short, cylindrical, few to several flowered inflorescence with triangular, shorter than the flowers floral bracts.

"Both Aa mandonii and Aa calceata can be separated very easily and at first glance, Aa mandonii bears white-silver sheaths, very broad silvery bracts, and a large inflorescence. Aa calceata in contrast has dry, yellowish-white sheaths, inconspicuous bracts and a narrow, longer, multi-flowered inflorescence." Schlechter 1912

Synonyms Altensteinia calceata Rchb.f. 1878

References W3 Tropicos, Kew Monocot list , IPNI ;

Xenia Orchid. 3: 19 Rchb.f 1878 as Altensteinia calceata

* Repert. Spec. Nov. Regni Veg. 11: 150 Schlechter 1912

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