Monographs Details:
Authority:
Maguire, Bassett & Wurdack, John J. 1960. The botany of the Guayana highland--Part IV. Mem. New York Bot. Gard. 10: 1-37.
Maguire, Bassett & Wurdack, John J. 1960. The botany of the Guayana highland--Part IV. Mem. New York Bot. Gard. 10: 1-37.
Family:
Annonaceae
Annonaceae
Description:
Latin Diagnosis - Arbor alta; ramuli glabri; internodia 1-1.5 cm longa. Foliorum lamina rigida, glaberrima, flavovirens, ovato-oblanceolata, basi rotundata vel brevissime acutata, apice in cuspidem brevem aeutam obtusiiisculam sensim contracta, 8-13 cm longa, 3-4 cm lata; costa supra conspicue impressa, rubeseens; nervi laterales et venularum reticulum densissimum utrinque conspicue prominentes. Flores in axillis foliorum delapsorum glomerati, fere sessiles; pedunculi brevissimi, post florationem ad 2 mm excrescentes, bracteolis minutis biseriatis retundatis aureo-sericeis dense instructi. Sepala rotundato-ovata, obtusiuscula, extus dense breviterque sericea, ea. 2.5 mm longa et lata. Petala oblanceolata, 12-14 mm longa, 5-7 mm lata, ad marginem brevissime ciliata. Stamina numerosa, flavida, apice recurvata, 3-4 mm longa. Pistilla numerosa, clavato-cylindrica, dense tomentella, ovulo basali unieo erecto instructa. (Fructus ignotus.)
Latin Diagnosis - Arbor alta; ramuli glabri; internodia 1-1.5 cm longa. Foliorum lamina rigida, glaberrima, flavovirens, ovato-oblanceolata, basi rotundata vel brevissime acutata, apice in cuspidem brevem aeutam obtusiiisculam sensim contracta, 8-13 cm longa, 3-4 cm lata; costa supra conspicue impressa, rubeseens; nervi laterales et venularum reticulum densissimum utrinque conspicue prominentes. Flores in axillis foliorum delapsorum glomerati, fere sessiles; pedunculi brevissimi, post florationem ad 2 mm excrescentes, bracteolis minutis biseriatis retundatis aureo-sericeis dense instructi. Sepala rotundato-ovata, obtusiuscula, extus dense breviterque sericea, ea. 2.5 mm longa et lata. Petala oblanceolata, 12-14 mm longa, 5-7 mm lata, ad marginem brevissime ciliata. Stamina numerosa, flavida, apice recurvata, 3-4 mm longa. Pistilla numerosa, clavato-cylindrica, dense tomentella, ovulo basali unieo erecto instructa. (Fructus ignotus.)
Discussion:
This species is particularly characterized by the rigid leaves rounded at the base. In this respect it most closely approaches (). leueodcnnis (Spruce) Warm., which also belongs to the Venezuelan flora. The new species proposed here is distinguished from the latter by a different nervation. The midrib is depressed on the upper side and the vein network is extremely close and elevated on both sides of the leaf.