Ouratea gillyana subsp. pachypoda Maguire & Steyerm.
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Authority
Maguire, Bassett. 1989. The Botany of the Guayana Highland- Part XIII. Mem. New York Bot. Gard. 51: 1-127.
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Family
Ochnaceae
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Scientific Name
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Description
Latin Diagnosis - subsp. gillyana foliis latioribus (2.5-)4-7 cm latis, inflorescentiis majoribus 6-13 cm longis, pedicellis crassioribus 1.5-2 mm latis, alabastris late ovoideis vel suborbiculari-ovoideis et floribus solitariis minus congestis recedit.
Distribution and Ecology - Savannas of Guyana and southeastern Venezuela at 400-950 m.
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Discussion
Type. Guyana. Sagaraimadai Savanna, upper Mazamni River, Pakaraima Mountains, 16 N o v 1951, Bassett Maguire & D. B. Fanshawe 32629 (holotype N Y ).
Specimens examined. VENEZUELA, bolivar: Gran Sabana, Kamarang Head, nr. Ilu-tepui, 800-950 m, 6 Mar 1952, Maguire 33294 (NY).
study of the material identified as Ouratea gillyana reveals the presence of two taxa: (1) typical O. gillyana with slender pedicels 1 m m or less in thickness, flower buds nanowly ovoid, 2.5-3.5 m m wide, relatively shorter inflorescences (3.5-7.5 c m long), more crowded and more numerous flowers with a tendency to occur in fascicles of 2-3 on some part of the rachis, and nanower leaves 1-4 c m wide, and (2) O. gillyana subsp. pachypoda with stout thickened pedicels 1.5-2 m m in thickness, flower buds broadly ovoid to suborbicular-ovoid, 4-5 m m wide, relatively longer inflorescences 6-13 c m long, flowers solitary and less crowded, and leaves averaging wider, (2.5-)4-7 c m wide. Ouratea gillyana is similar to O. steyermarkii Sastre, but diflfers in the chiefly racemiform inflorescence with the flowers b o m e above the middle portion of the rachis, and usually two sepals