Lucas Cardoso Marinho

First records of Tovomita stergiosii Cuello (Clusiaceae: Clusieae) in Brazil

New records of Tovomita stergiosii Cuello, a species previously recorded for Peruvian and Venezuelan Amazon, are presented for Brazil. We present a distribution map, besides comments and illustration on taxonomic related species.

Tovomita (Clusiaceae) from the Brazilian Atlantic Forest: Taxonomy and Utility of Leaf Venation Characters at the Species Level

Abstract Tovomita comprises approximately 50 species that are mainly distributed in moist forests of the Neotropics. In Brazil there are 34 species, which occur in the Amazon region and along the Atlantic coast. We here describe and illustrate the Tovomita species from the Brazilian Atlantic Forest, as well as characterize the leaf morphology of these taxa. Leaves were cleared and their venation was analyzed to look for diagnostic characters related to architecture and the relationship between the secondary and intersecondary veins. Eleven species of Tovomita were recorded, which have distributions ranging from the state of Rio Grande do Norte to the state of Rio de Janeiro. An identification key, based on the analysis, and distribution maps are provided. Tovomita salimenae, a new and vulnerable species endemic to the state of Minas Gerais, is described and two synonyms and nine lectotypifications are proposed. This work also revealed that seven species have larger distributions than previously thought and two species are critically endangered (T. iaspidis and T. megantha). The most relevant characters used to identify the studied species were exudate color, venation pattern, and bud shape.

Vismia atlantica (Hypericaceae), a new species previously thought to be well-known from the Brazilian Atlantic Forest1

Abstract Vismia atlantica, a new species endemic to the central region of the Brazilian Atlantic Forest, is described and illustrated. Collections of this species were initially identified as Vismia latifolia (probably because of a misinterpretation by Reichardt in Flora brasiliensis) and, more recently, as Vismia macrophylla. Vismia atlantica is part of a group of species having large leaves with numerous secondary veins and persistent stamens on the berries, features also present in the Amazonian species Vismia sandwithii.

Tovomita megantha: A new species of Clusiaceae from the Brazilian Atlantic Forest

Tovomita megantha, a new species presumably endemic to submontane Atlantic Forest in southern Bahia, Brazil is described, illustrated, and its diagnostic features compared to those of similar species. The new species belongs to the informal group Chrysochlamydifoliae. It differs from Tovomita choisyana and Tovomita longifolia by having much larger pedicels, flower buds, and floral diameters. The species here described is the tallest of the known species of Tovomita in the Atlantic Forest.ResumoTovomita megantha, uma nova espécie presumivelmente endêmica da Floresta Atlântica brasileira do sul da Bahia, é aqui descrita, ilustrada e suas características diagnósticas são comparadas e discutidas com espécies similares. A nova espécie pertence ao grupo informal Chrysochlamydifoliae. Difere de Tovomita choisyana e Tovomita longifolia pelos pedicelos, botões florais e diâmetro das flores muito maiores. A espécie aqui descrita é a mais alta dentre as espécies conhecidas de Tovomita da Floresta Atlântica.

A new Heteropterys (Malpighiaceae) from semideciduous forest, with notes on wood anatomy

Abstract This paper describes and illustrates Heteropterys serrata, a new species endemic to semideciduous forests associated with inselbergs in the state of Espírito Santo, Brazil. Morphological and wood anatomical traits of the new species are compared to those of other species of the Heteropterys Metallophyllis informal group. Based on wood anatomy, H. serrata and H. nitida (the most morphologically similar species) have different axial parenchyma, which is scarce paratracheal in H. nitida (and some other species of the Metallophyllis informal group) and aliform confluent in H. serrata. The most notable morphological and anatomical characters that distinguish the new species are the young hexagonal stems, the unusual widely serrate leaf margins and the aliform confluent axial parenchyma in the wood.

Novelties in Tapura (Dichapetalaceae) from the Brazilian Atlantic Forest

Abstract A taxonomic treatment of Tapura from the Brazilian Atlantic Forest is presented. Tapura follii is endemic to Espírito Santo State and the distribution of T. wurdackiana is expanded to northeastern Brazil. Two new species, T. martiniae and T. zei-limae are described and micromorphological characters of leaf trichomes and pollen grains, analyzed by SEM, are discussed for the group. In addition, the species are compared to T. amazonica, the most widespread species of Tapura. Descriptions, illustrations, distribution maps, and an identification key for the Atlantic Forest species of Tapura are also provided.

Flora das cangas da Serra dos Carajás, Pará, Brasil: Lacistemataceae

Lacistema aggregatum (Lacistemataceae) e apresentada como contribuicao a flora rupestre das cangas da Serra dos Carajas. Sao fornecidas descricao e ilustracao da especie, alem de comentarios sobre a taxonomia de especies relacionadas.

Flora das cangas da Serra dos Carajás, Pará, Brasil: Calophyllaceae

Calophyllum brasiliense (Calophyllaceae) is described as a contribution to the rupestral flora of the cangas of the Serra dos Carajas. Calophyllum brasiliense has a wide distribution in the Neotropics, growing usually in restinga areas and/or associated with watercourses. Additionally, the species is illustrated and taxonomic comments are provided.

Three new species of Tovomita (Clusiaceae) from the Amazon River basin and first record of papillae for Tovomita

Tovomita trachycarpa, T. vismiifolia and T. volkeri (Clusiaceae) are described, illustrated and mapped, and their diagnostic features are compared with those of similar species. Papillae are recorded for the first time for the genus, on the leaf blades, inflorescences and flower buds of T.vismiifolia, giving these structures a ferruginous color. Morphology of pollen grain and selected features of the leaf blade are discussed for the new species.

Tovomita hopkinsii, a new name for Dystovomita brasiliensis D'Arcy (Clusiaceae: Clusieae)

The neotropical tribe Clusieae contains six genera including Dystovomita and Tovomita. Material from the Ducke Reserve (Manaus), determined as Dystovomita brasiliensis, had been used in a recent phylogenetic study and was shown to be nested in Tovomita, leaving some doubt as to its determination. Having examined various types of Dystovomita brasiliensis we confirm the identity of the specimens from the Ducke Reserve and here accommodate the species within Tovomita as Tovomita hopkinsii. Illustrations, distribution map, an expanded description, and a discussion about the most closely related species of Tovomita are provided.ResumoA tribo neotropical Clusieae contém seis gêneros incluindo Dystovomita and Tovomita. Material coletado na Reserva Ducke (Manaus) e identificado como Dystovomita brasiliensis foi recentemente utilizado em estudo filogenético, onde a espécie aparece inserida em Tovomita, deixando dúvidas sobre a correta identificação dos respectivos espécimes. O estudo de vários tipos confirmou a identificação correta dos espécimes e possibilitou a transferência da espécie para Tovomita como Tovomita hopkinsii. Ilustrações, mapa de distribuição, descrição expandida e uma discussão sobre as espécies mais próximos em Tovomita são fornecidos.