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[570] Aiouea longipetiolata van der Werff Novon 4 (1): 61 [spring 1994] (van der Werff 1994). NOTE. — Known only from the Guiana Shield. VERNACULAR NAMES. — Pa: panauna-kamwi • Wp: yakami ka’a, yakami’ɨ. HERBARIUM DATA (FG). — 28 collections at CAY. Sel. exs.: S.A. Mori et al. 20758 (holo-, MO[MO-247078]; iso-, CAY[CAY027837], NY[00022599], P[P00745701], U[U0002590], US [00754392]). INVENTORY DATA (FG). — 26 trees in 16 plots; Fmax = 1 %; dbhinv = 55.4 cm., Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 474, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777

Characterization of vegetation in forest fragments subsidizes information for regional development, as well as the understanding of ecosystem structure and dynamics. Thus, the aim was to characterize the floristic structure and evaluate the dynamics of a fragment of Subtropical Seasonal Forest for the regional fauna. Parallel strips were used within which temporary plots of 10 m x 10 m were distributed, equidistant 20 m, and all individuals with PAC (circumference measured at 1,30 m from the soil surface) ≥ 15 cm were inventoried. 29 species belonging to 16 families were observed in the middle layer, the lower layer 11 species in 8 families and the upper layer 15 species of 11 families. The fragment showed more than 70% fruit dispersion per zoocoria, indicating its importance for the conservation of regional fauna. Ocotea puberula, Lithraea molleoides, Casearia sylvestris, Allophylus edulis, Cupania vernalis, Luehea divaricata, Actinostemon concolor, Piper aduncun and Aiouea saligna were the most important species, showing high values of importance. Form of dispersion of fruits and seeds of each species is fundamental for the maintenance of biodiversity and natural regeneration, directly influencing the colonization of species and the mode of distribution. The most representative species presented a grouped pattern of spatial distribution, possibly due to their preference for specific environmental conditions. Study made it possible to highlight the ecological importance of the species in different sinusias and the dispersion of the fruits by the fauna, contributing to the natural regeneration and conservation of biodiversity in fragments of Subtropical Seasonal Forest., A caracterização da vegetação e fragmentos florestais subsidia informações para o desenvolvimento regional, assim como o entendimento sobre a estrutura e dinâmica dos ecossistemas. Desse modo, objetivou-se caracterizar a estrutura florística e avaliar a dinâmica de um fragmento de Floresta Estacional Subtropical para a fauna regional. Para isso, foram utilizadas faixas paralelas dentro das quais foram distribuídas parcelas temporárias de 10 m x 10 m, equidistantes 20 m, e todos os indivíduos foram com CAP (circunferência medida a 1,30 m da superfície do solo) ≥ 15 cm foram inventariados. Observou-se 29 espécies pertencentes a 16 famílias no estrato médio, no estrato inferior 11 espécies em 8 famílias e no estrato superior 15 espécies de 11 famílias. O fragmento apresentou mais de 70% de dispersão dos frutos por zoocoria, indicando sua importância para conservação da fauna regional. Ocotea puberula, Lithraea molleoides, Casearia sylvestris, Allophylus edulis, Cupania vernalis, Luehea divaricata, Actinostemon concolor, Piper aduncun e Aiouea saligna foram as espécies de maior relevância, apresentando valores de importância elevados. A forma de dispersão de frutos e sementes de cada espécie é fundamental para a manutenção da biodiversidade e regeneração natural, influenciando diretamente na colonização das espécies e no modo de distribuição. As espécies mais representativas apresentaram padrão de distribuição espacial agrupado, possivelmente por sua preferência a condições ambientais específicas. Esse estudo possibilitou salientar a importância ecológica das espécies em diferentes sinúsias e a dispersão dos frutos pela fauna, contribuindo para a regeneração natural e conservação da biodiversidade em fragmento de Floresta Estacional Subtropical. &nbsp

A new species of Cinnamomum Schaeff. from the Pacific coast of Ecuador is described and discussed. Cinnamomum latifolium van der Werff is distinctive for its broad triplinerved leaves with canaliculate petioles, densely pubescent young twigs, and 2-locular inner stamens. In addition, six species recently described in Aiouea Aubl. should, in this author’s opinion, be placed within Cinnamomum. The new combinations C. ampullaceum (Lorea-Hern.) van der Werff, C. hirsutum (Lorea-Hern.) van der Werff, C. paratriplinerve (Lorea-Hern.) van der Werff, C. pseudoglaziovii (Lorea-Hern.) van der Werff, C. rubrinervium (Lorea-Hern.) van derWerff, and C. uninervium (Lorea-Hern.) van der Werff are accordingly published. The author citation of the recently transferred C. baitelloanum van der Werff & P. L. R. Moraes to Aiouea is rejected.

Cinnamomum is among the largest genera of the Lauraceae, including species from tropical to temperate Asia and from tropical to subtropical America. However, previous studies indicated that Cinnamomum might not be monophyletic in its current circumscription. We therefore re-investigated the genus and possible relatives with an increased taxon sample, particularly of the Neotropical species. Our results, based on sequences of the nuclear ITS region and the chloroplast spacers psbA-trnH and trnG-trnS, show that the Neotropical Cinnamomum species indeed do not form a monophyletic group with the Paleotropical species. Instead, the American species form a clade in which most species of the Neotropical genus Aiouea are nested within several subclades. According to the ITS data the Aiouea/Cinnamomum clade is sister to the likewise predominantly Neotropical Ocotea complex, rather than the two Paleotropical Cinnamomum clades. Therefore, Cinnamomum cannot be upheld in its current circumscription. As the type C. verum, is from Asia, the Neotropical species need to be placed in a different genus. We decided to transfer them to Aiouea here, because this is the oldest generic name in the Aiouea/Cinnamomum clade, and the only character separating Aiouea from Neotropical Cinnamomum is the number of pollen sacs per anther (di-vs. tetrasporangiate), a feature that is known to be variable within several other genera as well. This transfer requires 42 new combinations and two nomina nova. In addition, six species described in the unpublished Ph.D. thesis of one of the authors (FLH) are validated in Aiouea here, and the only species of the genus Mocinnodaphne is transferred to Aiouea as well.

espanolSe tipifican 15 nombres descritos en la familia Lauraceae a partir de colecciones de Paraguay en los generos Aiouea Aubl., Nectandra Rottb., Ocotea Aubl., Oreodaphne Nees & Mart. y Phoebe Nees. Seis lectotipos son designados: Nectandra lanceolata var. paraguariensis Hassl., Ocotea confusa Hassl., Ocotea gracilipes Mez, Ocotea lanceolata f. latifolia Hassl., Ocotea suaveolens var. robusta Hassl. y Oreodaphne suaveolens Meisn. Una lectotipificacion de segundo paso se realiza para Nectandra megaphylla Hassl. EnglishThe typification of 15 names described in the Lauraceae family from Paraguayan collections in the genera Aiouea Aubl., Nectandra Rottb., Ocotea Aubl., Oreodaphne Nees & Mart. and Phoebe Nees is presented. Lectotypes are designated for: Nectandra lanceolata var. paraguariensis Hassl., Ocotea confusa Hassl., Ocotea gracilipes Mez, Ocotea lanceolata f. latifolia Hassl., Ocotea suaveolens var. robusta Hassl. and Oreodaphne suaveolens Meisn. A second step lectotypification is made for Nectandra megaphylla Hassl.

Aiouea hassleri Mez in Bull. Herb. Boissier ser. 2, 3: 229. 1903. Holotypus: PARAGUAY. Canindeyú: “ In campo Ipé hú ”, X.1898 -1899, Hassler, E. 5004 (G [G00229914]!; iso-: G [G00228277, G00228278]!). = Aiouea trinervis Meisn. in A. DC., Prodr. 15(1): 83. 1864., Published as part of Ramella, Lorenzo & Barriera, Gabrielle, 2018, Tipificaciones en la familia Lauraceae de la Flora del Paraguay, pp. 109-113 in Candollea 73 (1) on page 110, DOI: 10.15553/c2018v731a11, http://zenodo.org/record/5724501

ResumoO trabalho apresenta um estudo taxonômico das espécies de Lauraceae no Parque Nacional do Itatiaia, Município de Itatiaia, Estado do Rio de Janeiro, Brasil. São apresentadas 19 espécies subordinadas a 11 gêneros: Aiouea(1 sp.), Aniba (1 sp.), Beilschmiedia (1 sp.),Cinnamomum (1 sp.), Cryptocarya (2 spp.),Endlicheria (1 sp.), Licaria (2 spp.),Nectandra (5 spp.), Persea (3 spp.),Phyllostemonodaphne (1sp.),Rhodostemonodaphne (1 sp.). O estudo consta de chave de identificação, descrições, dados das fenofases, distribuição geográfica, comentários e ilustrações. AbstractThis study presents the research of the Lauraceae species in the Parque Nacional do Itatiaia, Municipality of the Itatiaia, Rio de Janeiro State, Brazil. Nineteen subordinate to eleven genera species are presented:Aiouea (1 sp.), Aniba (1 sp.),Cassytha (1 sp.), Endlicheria (1 sp.),Licaria (2 spp.), Nectandra (4 spp.),Persea (2 spp.), Phyllostemonodaphne(1sp.) e Rhodostemonodaphne (1 sp.) . The study constitute the key of identification, description, phenology, geographic distribution, commentary and illustrations.