@article {20383, title = {Comparative floral anatomy and development in Neotropical Lauraceae}, journal = {International Journal of Plant Sciences}, volume = {177}, year = {2016}, pages = {579-589}, chapter = {579}, abstract = {

Premise of research. The pantropical magnoliid family Lauraceae has an extensive macrofossil record that dates back to the Early Cretaceous. However, flower anatomy among extant species is relatively poorly known. We investigate flower structure and development in six Neotropical genera to elucidate the homologies of the floral parts, especially the prominent appendages that occur on the filaments of the inner fertile stamen whorl in some species.

Methodology. We used SEM and LM to examine flower organization and development in 11 species of six genera (Aniba, Cryptocarya, Endlicheria, Licaria, Nectandra, Ocotea) and flower vasculature in two species (Cryptocarya moschata and Ocotea prolifera).

Pivotal results. All the flowers examined are typical of Lauraceae: they are very small and possess two whorls of tepals that are similarly vascularized, with three bundles each (resembling bracteopetals), multiple androecium whorls, and a single carpel. Variation exists in some characters, especially in the androecium. A fourth (innermost) androecial whorl is present as staminodia in some species. The prominent stamen appendages are highly vascularized.

Conclusions. The presence of three vascular bundles supplying both outer and inner tepals supports their potential homology as bracteotepals. Floral vasculature also indicates that the staminodia of the fourth androecial whorl are derived from stamens. A potential homology between the stamens and appendages remains debatable, because existing evidence is contradictory.

}, keywords = {bracteopetals, floral development, homology, stamen appendages, staminodes, vasculature}, doi = {10.1086/687281}, author = {Sajo, M G and Pedro L.R. de Moraes and Assis, Leandro C.S. and Rudall, Paula J} } @article {20215, title = {Three new species of Ocotea (Lauraceae) from the campos rupestres of Brazil}, journal = {Brittonia}, volume = {62}, year = {2010}, pages = {86-94}, chapter = {86}, abstract = {

Three new hermaphrodite species of Ocotea (Lauraceae) from the campos rupestres of Brazil are described and illustrated: Ocotea pumila, which is known
from Bahia state; and Ocotea colophanthera and Ocotea rupestris both from Minas Gerais state. Their diagnostic features are pointed out, and a discussion of their relationships to other species of Ocotea is provided.

}, author = {Assis, Leandro C.S. and Renato de Mello-Silva} } @article {20208, title = {A fam{\'\i}lia Lauraceae na Reserva Biol{\'o}gica da Represa do Grama, Descoberto, Minas Gerais, Brasil}, journal = {Boletim de Bot{\'a}nica, Departamento de Bot{\'a}nica, Instituto de Biociencias, Universidade de S{\~a}o Paulo}, volume = {23}, year = {2005}, pages = {113-139}, chapter = {113}, abstract = {

The Reserva Biol\ógica da Represa do Grama is situated in the Zona da Mata of Minas Gerais, comprising 263,8 hectares of seasonal forest. Seven genera and 15 species of Lauraceae have been recorded from the Reserva: Aniba firmula, Beilschmiedia taubertiana, Cryptocarya micrantha, Endlicheria paniculata, Nectandra aff. megapotamica, N. membranacea, N. oppositifolia, N. psammophila, Ocotea aciphylla, O. brachybotrya, O. corymbosa, O. divaricata, O. aff. indecora, O. odorifera e Urbanodendron verrucosum. Keys, descriptions, illustrations and comments on distribution of genera and species are presented.

}, author = {Assis, Leandro C.S. and Forzza, Rafalea C. and van der Werff, Henk} } @article {20147, title = {Taxonomic and nomenclatural changes in the Ocotea indecora group (Lauraceae)}, journal = {Novon}, volume = {20}, year = {2010}, pages = {377-380}, chapter = {377}, url = {http://www.biodiversitylibrary.org/item/123332$\#$page/392/mode/1up}, author = {Assis, Leandro C.S. and Renato de Mello-Silva} } @article {19932, title = {Three new species of Ocotea (Lauraceae) from the Brazilian Atlantic forest}, journal = {Rodrigu{\'e}sia}, volume = {60}, year = {2009}, pages = {641-649}, chapter = {641}, abstract = {

Three new species of Ocotea \– O. calliscypha L. C. S. Assis \& Mello-Silva, from the state of Minas Gerais, O. ciliata L. C. S. Assis \& Mello-Silva, from the state of Esp\írito Santo, and O. marcescens L. C. S. Assis \& Mello-Silva, from the states of Bahia, Esp\írito Santo and Rio de Janeiro \– are described. The species are illustrated, and comments on their relationships to other species of Ocotea, distribution, habitat, and phenology are provided.

}, author = {Assis, Leandro C.S. and Renato de Mello-Silva} } @article {19931, title = {Two New Species of Ocotea (Lauraceae) from the Brazilian Restinga}, journal = {Novon}, volume = {20}, year = {2010}, month = {06/2010}, pages = {123-128}, chapter = {123}, abstract = {

Two new species of Ocotea Aubl. (Lauraceae) from the restinga of Brazil are described and illustrated. Ocotea arenicola L. C. S. Assis \& Mello-Silva and O. ramosissima L. C. S. Assis \& Mello-Silva are discovered from Esp\írito Santo and Bahia states, respectively. Their diagnostic features are indicated, and their relationships to other Ocotea species are discussed.

}, author = {Assis, Leandro C.S. and Renato de Mello-Silva} }