Monographs Details: Ouratea gillyana subsp. pachypoda Maguire & Steyerm.
Authority: Maguire, Bassett. 1989. The Botany of the Guayana Highland- Part XIII. Mem. New York Bot. Gard. XIII: 1-127.
Description:Species Description - subsp. gillyana foliis latioribus (2.5-)4-7 cm latis, inflorescentiis majoribus 6-13 cm longis, pedicellis crassioribus 1.5-2 m m latis, alabastris late ovoideis vel suborbiculari-ovoideis et floribus solitariis minus congestis recedit.

Distribution and Ecology - Savannas of Guyana and southeastem Venezuela at 400-950 m. GUYANA. Kaieteur Plateau, Kaieteur Savanna, 3 May 1944, Maguire & Fanshawe 23172 (NY); Kaieteur Plateau, Kaieteur Savanna, 3 May 1944, Maguire & Fanshawe 23395 (NY, U); upper Mazamni River, Kamarang Station, 500 m, 13 Nov 1951, Maguire & Fanshawe 32612 (NY); Maguire & Fanshawe 32629, type, cited above; Imbaimadai Savanna nr. mouth of Partang River, upper Mazamni River basin, M e m me Mountains, 460 m, 14 Jun 1960, Maguire & Tillet 43847 (NY); open rocky savanna forest, nr. Kaieteur Falls, Kaieteur Plateau, Krabu savanna, 400 m, 25 Feb 1962, Forest Dept. Field No. R.S. 148, Record No. 7981 (NY).


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