Habenaria nabucoi Ruschi 1973 SECTION Macroceratitis Kraenzl.

Specimen

Perianth and Spur

Photos by © A. N. Batista; Joćo Batista F. da Silva; Luciano de Bem Bianchetti and the Orquideas de Minas Gerais; El Genero Habenaria

Drawing Drawing by © Joćo A. N. Batista; Joćo Batista F. da Silva; Luciano de Bem Bianchetti and the The genus Habenaria (Orchidaceae) in the Brazilian Amazon

Part sun Cool LATESummer Fall

Common Name The Nabuco Habenaria [A town in Pernambuco Brazil]

Flower Size 1.6" [4 cm]

Found in Venezuela and northern, central and eastern Brazil in standing water along streams, rills and rivers as a medium sized, cool growing terrestrial that blooms in the late summer and fall

+"Habenaria nabucoi is similar and closely related to H. longicauda, but in H. nabucoi the flowers are usually larger and predominantly pure white (vs. light green in H. longicauda), the lateral sepals are not reflexed (vs. reflexed), the spur is thickened and rounded at the apex (vs. acuminate and acute) and the rostellum midlobe is taller and partially projected beyond the anthers (vs. smaller and enclosed between the anthers) (Batista et al. 2006). The species is typically aquatic and grows in water at the margins of lakes and streams.

CAUTION This group, H fastor, H nabucoi, H gourlieana and H macronectar are all fairly similar. I hope I have them separate in a correct fashion. H nabucoi is considered by Kew to be synomonous with H melvillei but I have left them separate for now. H fastor is also considered by Kew to be synomonous with H melvillei and so the photo for H melvillei is what was considered to be H fastor. I have to date not seen a plant labeled H melvillei so please use all of these species with caution!

Synonyms Habenaria gourlieana f. magna Hoehne 1919

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidaceae Brasilense Pabst & Dungs 1975 ; +The genus Habenaria (Orchidaceae) in the Brazilian Amazon Joćo A. N. Batista; Joćo Batista F. da Silva; Luciano de Bem Bianchetti; Rev. bras. Bot. vol.31 no.1 Sćo Paulo Jan./Mar. 2008 drawing

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