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Valente D.M.,Museu Paraense Emilio Goeldi MCT | Sousa J.S.,Museu Paraense Emilio Goeldi MCT | Bastos M.N.C.,Museu Paraense Emilio Goeldi MCT
Acta Amazonica | Year: 2013

This study deals with the taxonomic treatment of Sapotaceae Juss. on the coastal sandbanks of Pará State. With the aid of a stereomicroscopy, there were made morphological descriptions of reproductive and vegetative parts. We used literature and collections identified by specialists to confirm the different characteristics of the taxa. We also constructed an identification key for species. We described five species and four subspecies, distributed into four genera: Manilkara bidentata subsp. bidentata, M. bidentata subsp. surinamensis, M. triflora, M. paraensis; Micropholis venulosa, M. gnaphaloclados; Pouteria ramiflora, P. reticulata subsp. reticulata and Pradosia schomburgkiana subsp. schomburgkiana. The genus Manilkara Adans. was the most representative with two species and two subspecies. The sandbank forest formation was the ecosystem with the largest number of taxa.


Cruz A.P.O.,Museu Paraense Emilio Goeldi MCT | Dos Santos De Sousa J.,Museu Paraense Emilio Goeldi MCT | De Nazare Do Carmo Bastos M.,Museu Paraense Emilio Goeldi MCT | De Oliveira Barbosa C.V.,Museu Paraense Emilio Goeldi MCT
Rodriguesia | Year: 2013

This study deals with the taxonomic treatment of Passiflora L. from Urucu Petroleum Province, Coari-AM. The genus is represented by seven taxa: P. acuminata DC.; P. auriculata Kunth; P. coccinea Aubl.; P. glandulosa Cav.; P. laurifolia L.; P. mansoi (Mart.) Mast. e P. riparia Mart. ex Mast. Are given identification key, descriptions, and illustrations of the taxa, as well as data concerning geographical distribution, additional comments and habitat of the taxa.


The species of Nephrolepis, according to experts, are considered confusing taxonomic point of view, especially regarding the morphological characters used to define the taxa restricted to the American continent. In total, the genus has 19 species in tropical regions, of which seven are native to America. In Brazil the genus is represented by nine species. This paper aims a survey of the Nephrolepis in the Brazilian Amazon and identification key, comments, illustrations, and data indicating their preferred environments are presented. In this study, the occurrence of species was surveyed through collecting expeditions in state of Acre, Pará and Mato Grosso. The specimens deposited in the herbaria BHCB, HB, HBRA, HPZ, IAN, INPA, MG, MIRR, R, RB, SP, SPF, UFRR were analyzed and NY through the virtual Herbarium. In the Brazilian Amazon the genus is represented by seven species: Nephrolepis biserrata, N. brownii, N. cordifolia. pectinata, N. pendula, N. rivularis and N. undulata. They occur in several Amazonian environments and the predominant life form is epiphyte, following by rupicolous and terrestrial. Morphological characters like the scales of the petiole base, rhizome and rachis plus the indusia shape are important for distinguishing species in the genus.


de Sousa J.S.,Museu Paraense Emilio Goeldi MCT | Bastos M.N.C.,Museu Paraense Emilio Goeldi MCT | Gurgel E.S.C.,Museu Paraense Emilio Goeldi MCT
Acta Amazonica | Year: 2014

Abuta is a genus taxonomically complex due overlapping of morphological character variation. This study deals with the taxonomic treatment of the Abuta genus in the Pará state. The study includes the analysis of botanical material originated from new collections and specimens from the herbaria Museum Goeldi (MG), Agronomic Institute of the North (IAN), National Institute for Research in the Amazon (INPA), Rio de Janeiro Botanic Garden (RB) and New York Botanical Garden (NY). Identification key, descriptions, geographical distribution, comments, and illustrations of species are provided. In Pará the genus is represented by 11 species: A. barbata, A. brevifolia, A. candollei, A. grandifolia, A. grisebachii, A. imene, A. obovata, A. rufescens, A. sandwithiana, A. solimoesensis and A. velutina. Abuta obovata and A. velutina are new records for Pará state. The leaf venation was the main character for separating species and the secondary vegetation formation the ecosystem with the largest number of species.


Hymenophyllaceae (Polypodiopsida) from the Metropolitan Mesoregion of Belèm, State of Pará, Brazil. In Brazil as well as in the Brazilian Amazon, most information regarding to Hymenophyllaceae is contained in floristic surveys and there are few specific studies to the family. This work presents a floristic treatment of filmy ferns from Metropolitan Mesoregion of Belem. We recorded 19 species belonging to the genera Didymoglossum (6 spp.), Hymenophyllum (3 spp.), Polyphlebium (1 sp.) and Trichomanes (9 spp.) that correspond to about 60% of filmy ferns from Pará. Trichomanes crispum and T. vittaria are new records to the studied area. The cities of Belèm and Santa Barbara do Pará have greater species richness probably due to the ecological parks and to concentrate studies in these areas. Keys to the genera and species as well as descriptions, taxonomic comments, geographic distributions data, types of vegetation, substratum and illustrations are given.


Da Silveira J.B.,Museu Paraense Emilio Goeldi MCT | Secco R.S.,Museu Paraense Emilio Goeldi MCT
Phytotaxa | Year: 2015

As part of the review of Moutabea, a new species of the genus, Moutabea floribunda, is described and illustrated. It is characterized by its smooth leaves with adaxially lustrous surface, racemes with rachis trimerous or tetramerous, monads rare, and pubescent seeds with unnoticeable raphe. This paper contains a description, a comparison with similar species, illustrations, distribution map, and phenological information about the new species. © 2015 Magnolia Press.

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