Monographs Details:
Authority:
Allen, Caroline K. 1966. Contributions to the botany of Guiana. II. Lauraceae. Mem. New York Bot. Gard. 15: 53-95.
Allen, Caroline K. 1966. Contributions to the botany of Guiana. II. Lauraceae. Mem. New York Bot. Gard. 15: 53-95.
Family:
Lauraceae
Lauraceae
Description:
Latin Diagnosis - Arbor 25 m alta, gemmis ovoideis obtuso-acutis vel acutis, dense ferrugineo-tomentellis, ramulis junioribus plus minusve dense minuteque ferrugineo-tomen-tellis, mox griseis rugosis teretibus glabrescentibus, longitudinaliter fissis. Folia alternata vel subopposita ad apicem ramulorum disposita, petiolis satis gracilibus atrogriseis glabrescentibus teretibus, ad 12 mm longis et 1.5 mm latis, laminis junioribus olivaceis supra conspicue ferrugineo-pubescentibus praecipue ad venas marginesque, subtus subcastaneis glabrescentibus, supra olivaceis subnitidis sub-tus opacis brunnescentibus, ellipticis, ad 7-9 (-12) cm longis et (3-) 3.5-4.5 (-6) cm latis, ad basin plus minusve acutis ad apicem breve obtuse vel acute acuminatis apiculatis, penninerviis, costa supra glabra vel ad basin excepta flavida impressa, subtus elevata minute brunneo-pubescenti, nervis ad 5-6-paribus irregu-laribus supra obscuris subtus elevatis minute brunneo-pubescentibus indirectis, sub angulo 65-55° divergentibus, rete venularum laxe reticulato supra obscuro subtus leviter elevato. Inflorescentia axillaris et subterminalis, ubique ferru-gineo-pubescens, racemoso-paniculata, pedunculo plus minusve 1.5 mm longo. Flores dioici, male flores ad 4.5-5.5 mm longi, ubique pubescentes, pedicellis ad 2 mm longis; perianthio campanulato brunneo-viridescenti, lobis reflexis, ellipticis ad 2 mm longis, tubo ad 1.5 mm longo; staminibus ad 2 mm longis, antheris plus minusve quadratis, filamentis satis tenuibus subaequalibus, ser I & II ad 1.5 mm longis, ser III ad 1.8-2 mm longis, biglandulosis, glandulis ad 0.8 mm longis, stipitatis, ser IV O; gynoecio abortivo gracile filamentoso, ad 1.5 mm longo, stig-mate papilloso conspicuo triangulari. Infructescentia satis robusta, brevis, glabres-cens, ad 5 cm longa. Fructus immaturus, fide colls, viridis, in sicco apice olivacea excepta atrobrunneus, ovoideus, umbonatus, ad 12 -15 mm longus et ad basin 9 mm, ad apicem 4 mm latus, cupula cyathiformi, paullo urceolata, ad 0.8-1 mm longa, 10-12 mm diam. et 5 mm alta, pedicello brevi, satis robusto, ad 2-5 mm longo, ad apicem expanso subtenta. Flores 5 ignoti.
Species Description - Tree 10-25 m high, bearing densly ferrugineous, tomentellous branchlets with coriaceous, brownish green leaves in the axils of which are numerous, short inflorescences with dioecious flowers.
Latin Diagnosis - Arbor 25 m alta, gemmis ovoideis obtuso-acutis vel acutis, dense ferrugineo-tomentellis, ramulis junioribus plus minusve dense minuteque ferrugineo-tomen-tellis, mox griseis rugosis teretibus glabrescentibus, longitudinaliter fissis. Folia alternata vel subopposita ad apicem ramulorum disposita, petiolis satis gracilibus atrogriseis glabrescentibus teretibus, ad 12 mm longis et 1.5 mm latis, laminis junioribus olivaceis supra conspicue ferrugineo-pubescentibus praecipue ad venas marginesque, subtus subcastaneis glabrescentibus, supra olivaceis subnitidis sub-tus opacis brunnescentibus, ellipticis, ad 7-9 (-12) cm longis et (3-) 3.5-4.5 (-6) cm latis, ad basin plus minusve acutis ad apicem breve obtuse vel acute acuminatis apiculatis, penninerviis, costa supra glabra vel ad basin excepta flavida impressa, subtus elevata minute brunneo-pubescenti, nervis ad 5-6-paribus irregu-laribus supra obscuris subtus elevatis minute brunneo-pubescentibus indirectis, sub angulo 65-55° divergentibus, rete venularum laxe reticulato supra obscuro subtus leviter elevato. Inflorescentia axillaris et subterminalis, ubique ferru-gineo-pubescens, racemoso-paniculata, pedunculo plus minusve 1.5 mm longo. Flores dioici, male flores ad 4.5-5.5 mm longi, ubique pubescentes, pedicellis ad 2 mm longis; perianthio campanulato brunneo-viridescenti, lobis reflexis, ellipticis ad 2 mm longis, tubo ad 1.5 mm longo; staminibus ad 2 mm longis, antheris plus minusve quadratis, filamentis satis tenuibus subaequalibus, ser I & II ad 1.5 mm longis, ser III ad 1.8-2 mm longis, biglandulosis, glandulis ad 0.8 mm longis, stipitatis, ser IV O; gynoecio abortivo gracile filamentoso, ad 1.5 mm longo, stig-mate papilloso conspicuo triangulari. Infructescentia satis robusta, brevis, glabres-cens, ad 5 cm longa. Fructus immaturus, fide colls, viridis, in sicco apice olivacea excepta atrobrunneus, ovoideus, umbonatus, ad 12 -15 mm longus et ad basin 9 mm, ad apicem 4 mm latus, cupula cyathiformi, paullo urceolata, ad 0.8-1 mm longa, 10-12 mm diam. et 5 mm alta, pedicello brevi, satis robusto, ad 2-5 mm longo, ad apicem expanso subtenta. Flores 5 ignoti.
Species Description - Tree 10-25 m high, bearing densly ferrugineous, tomentellous branchlets with coriaceous, brownish green leaves in the axils of which are numerous, short inflorescences with dioecious flowers.
Discussion:
Type. Upland tree to 25 m high, calyx brownish green, stamens yellow, 40 minutes up Falcina River from Camp 8 (0° 57' N-51° 29' W), Rio Araguari, Territorio Amapa, Brazil, 14 Sept 1961, J.M. Pires, Wm. Rodrigues & G. C. Inane 50926 (holotype, male fl. NY).
A species whose leaves show, in the dried state at least, lateral nerves that ascend towards the margin in a more or less irregular, undulating arc. The sturdy branchlets grow more or less consistently straight and regular. The immature leaves are thin in texture, pubescent and their reticulation is conspicuous beneath. The exact relationship of this species in the genus is not certain.