02319nas a2200229 4500008004100000245007200041210006900113300001200182490000800194520164400202653001801846653002301864653001301887653002201900653001501922653001601937100001501953700002701968700002501995700002102020856004802041 2016 eng d00aComparative floral anatomy and development in Neotropical Lauraceae0 aComparative floral anatomy and development in Neotropical Laurac a579-5890 v1773 a

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.

10abracteopetals10afloral development10ahomology10astamen appendages10astaminodes10avasculature1 aSajo, M, G1 aMoraes, Pedro, L.R. de1 aAssis, Leandro, C.S.1 aRudall, Paula, J uhttps://lauraceae.myspecies.info/node/2038300866nas a2200133 4500008004100000245008000041210006900121300001000190490000700200520042500207100002500632700002700657856004800684 2010 eng d00aThree new species of Ocotea (Lauraceae) from the campos rupestres of Brazil0 aThree new species of Ocotea Lauraceae from the campos rupestres  a86-940 v623 a

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.

1 aAssis, Leandro, C.S.1 ade Mello-Silva, Renato uhttps://lauraceae.myspecies.info/node/2021501278nas a2200145 4500008004100000245010100041210007100142300001200213490000700225520077900232100002501011700002401036700002401060856004801084 2005 eng d00aA família Lauraceae na Reserva Biológica da Represa do Grama, Descoberto, Minas Gerais, Brasil0 afamília Lauraceae na Reserva Biológica da Represa do Grama Desco a113-1390 v233 a

The Reserva Biológica 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.

1 aAssis, Leandro, C.S.1 aForzza, Rafalea, C.1 avan der Werff, Henk uhttps://lauraceae.myspecies.info/node/2020800453nas a2200121 4500008004100000245008100041210006900122300001200191490000700203100002500210700002700235856006900262 2010 eng d00aTaxonomic and nomenclatural changes in the Ocotea indecora group (Lauraceae)0 aTaxonomic and nomenclatural changes in the Ocotea indecora group a377-3800 v201 aAssis, Leandro, C.S.1 ade Mello-Silva, Renato uhttp://www.biodiversitylibrary.org/item/123332#page/392/mode/1up00989nas a2200133 4500008004100000245007900041210006900120300001200189490000700201520054700208100002500755700002700780856004800807 2009 eng d00aThree new species of Ocotea (Lauraceae) from the Brazilian Atlantic forest0 aThree new species of Ocotea Lauraceae from the Brazilian Atlanti a641-6490 v603 a

Three new species of OcoteaO. 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 Espírito Santo, and O. marcescens L. C. S. Assis & Mello-Silva, from the states of Bahia, Espírito 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.

1 aAssis, Leandro, C.S.1 ade Mello-Silva, Renato uhttps://lauraceae.myspecies.info/node/1993200888nas a2200145 4500008004100000245007000041210006800111260001200179300001200191490000700203520043200210100002500642700002700667856004800694 2010 eng d00aTwo New Species of Ocotea (Lauraceae) from the Brazilian Restinga0 aTwo New Species of Ocotea Lauraceae from the Brazilian Restinga c06/2010 a123-1280 v203 a

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 Espírito Santo and Bahia states, respectively. Their diagnostic features are indicated, and their relationships to other Ocotea species are discussed.

1 aAssis, Leandro, C.S.1 ade Mello-Silva, Renato uhttps://lauraceae.myspecies.info/node/19931