Maxillaria granditenuis D.E.Benn. & Christenson 1998 sect. Aggregatae Pfitz 1889

TYPE Drawing by Alcantara, Bennett & Christenson

Part Shade Cool Winter

Common Name The Larger Flower M tenuis Maxillaria

Flower Size 2" [5 cm]

Found in Pasco department of Peru in very wet cloud forests at elevations around 1830 meters as a medium sized, cool growing epiphyte with elliptic-ovoid, unequally compressed pseudobulbs subtended in youth by a series of imbricating sheaths and carrying a single, apical, linear-lanceolate, acute, long petiolate base leaf that blooms in the winter as the new growths arise, on short, erect, to 2.4" [6 cm] long, single flowered inflorescence with ovate, acute, subequal to the ovary floral bracts and carrying campanulate flowers with yellow towards the base tepals that become cinnamon colored distally, a lip with the midlobe white and the disc and callus yellow.

Similar to M tenuis but this one has larger flowers, a tomentose callus and a different midlobe to the lip. This species also is similar in morphology to M colorata but this one has a much shorter inflorescence. Also similar to M setigera but this one has the tomentose lip and the much longer, narrower leaves.

Synonyms \

References W3 Tropicos, Kew Monocot list , IPNI ; *Icones Orchidacearum Peruviarum Plate 505 Bennett & Christenson 1998 drawing fide; LANKESTERIANA 14(1) 2014