Regina Célia Lobato Lisboa

Revisão taxonômica das espécies amazônicas de Rhizophoraceae

Durante o Curso de Botânica Tropical, na disciplina de Sistemática, realizamos em conjunto o estudo da família Rhizophoraceae, a fim de demonstrarmos os métodos e proceclimentos de um estudo taxonômico. A escolha desta família entre várias outras não menos interessantes, deu-se em razão de ser Rhizophoraceae uma família razoavelmente pequena, com diversos gêneros, e larga distribuição por toda a Amazônia, ocupando habitats os mais diversos, desde o mangue até a mata da terra firme. Devemos ressaltar também que desde o trabalho de Engler (1876), não houve outra revisão nos gêneros amazônicos, a não ser as interessantes observações de Pires & Rodrigues (1971), sobre os gêneros Po/ygonanthus e Anisophyl/ea. Rhizophoraceae é uma família constituída de 16 gêneros com cerca de 120 espécies distribuídas nas regiões tropicais e subtropicais do mundo, com apenas 5 gêneros representados na região amazônica. Em Rhizophoraceae o gênero típico e mais conhecido é Rhizophora ou mangue, típica desse habitat, havendo porém vários gêneros da família que habitam as matas altas longe do mar.

Musgos da ilha de Marajó - II - Município de Anajás Pará, Brasil

Mosses were collected in the municipality of Anajas, on the Marajo Island, in the northen Brazilian state of Para. This work continues the survey of the Bryophyta flora of this island. Thirty-four species, belonging to 25 genera and 17 families, were identified from the municipality. Calymperaceae and Sematophyllaceae stand out as the families with the greatest number of species (six and five, respectively). The mosses Syrrhopodon leprieurii Mont., Fissidens elegans Brid., Isopterygium subbrevisetum (Hampe) Broth, and Meiothecium boryanum (C. Mull.) Mitt, represent new records for the state of Para.

Musgos (Bryophita) do nordeste Paranaense, Brasil -1. Zona Bragantina, microrregião do Salgado e município de Viseu

This paper is an inventory of moss species occuring in diferent types of vegetation in the Zona Bragantina, Salgado microregion and Viseu municipalities, all located in the northeast of Para. The results found 60 species and one variety in 632 moss samples, distributed in 30 genera and 16 families. Sematophyllaceae, Calymperaceae e Leucobryaceae were prominent in diversity of species and number of occurrencies. Sematophyllum subsimplex (Hedw.) Mitt. and Calymperes lonchophyllum Schwaegr. are the most abundant species. The results found at Salgado Microregion were compared to the results found at Zona Bragantina and Viseu municipalities. There is a higher diversity in primary vegetation, indicating that the replacement by the secondary vegetation results in the impoverishment of moss species diversity.

Musgos (Bryophyta) da Serra dos Carajás, estado do Pará, Brasil

In the Serra dos Carajás a mineral province situated in the south Pará state, where occur a big quantity of ore as iron, manganes, cooper, gold, nikel and others, were carried collection of bryophytas (mosses), to aim of inventory the bryoflora the Serra in its different ecossystems, and to test the hypothesis that for each ecossistem, correspond determined specific diversity of the mosses. There were identified 87 species, 3 varieties and 20 families. To each species are included data of the material examined and comments about the principal morphological characteristics. Sematophyllum subsimplex (Hedw.) Mitt., Pilosium chlorophylum (Hornsch.) Müll. Hal., Calicostella pallida (Hornsch.) Ångstr. and Campylopus savannarum (Müll. Hal.) Mitt. stand out by abundance. The three first were found in all ecossistem studied. Fourteen species were considered rare due have been colected only one time. Leucomium steerei B.H. Allen & Veling and Fissidens weiri var. hemicraspedophylus Mitt. are new occurences to Brazilian Amazon and to Pará state. Phyllodon truncatulum (Müll. Hal.) W.R. Buck, Lepidopilum polytrichoides (Hedw.) Brid. and Groutiella tumidula (Mitt.) Vitt are new occurrences only to Pará state. The specific diversity of the Serra dos Carajás compared the others locals were considered high.

Musgos (Bryophyta) na Ilha Trambioca, Barcarena, PA, Brasil

This work presents a survey of mosses from different ecosystems of Trambioca Island, municipality of Barcarena, Para State, Brazil. Forty taxa of mosses were found, belonging to 20 genera and 13 families. The families with highest number of species were Calymperaceae (12 spp.), Sematophyllaceae (6 spp.), and Leucobryaceae (5 spp.), which also presented the highest number of individuals. The most common species were Sematophyllum subsimplex (Hedw.) Mitt, Calymperes erosum Mull. Hal., Pilosium chlorophyllum (Hornsch.) Mull. Hal., Callicostella pallida (Hornsch.) Argstr., and Trichosteleum papillosum (Honrsch.) A. Jaeger. It was observed a higher richness of species in the primary low land rainforest, confirming the preference of bryophytes for this ecosystem. Philonotis gracillima Angstr. is mentioned as the first report to Para State.

NOVAS OCORRÊNCIAS DE BRYOPHYTA (MUSGOS) PARA O ESTADO DO PARÁ, BRASIL.

Eleven species of mosses are reported as new for the State of Para, as a contribution to enlarge the knowledge about the bryoflora of this state. Fissidens allenianus Brugg.-Nann. & Pursell and Taxithelium portoricense Williams are reported as new to Brazil. Morphological, taxonomic and ecological comments are given for each species, along with photomicrographs.

Os gêneros Lejeunea e Microlejeunea (Lejeuneaceae) na Estação Científica Ferreira Penna, estado do Pará, Brasil, e novas ocorrências

A survey of the Lejeuneaceae (Hepaticae) was performed at Ferreira Penna Research Station, Melgaco municipality, Para, where were observed Lejeunea caespitosa Lindenb. ex Gottsche, Lindenb. & Nees, Lejeunea flava (Swartz) Nees, Lejeunea tapajosensis Spruce, Microlejeunea acutifolia Stephani and Microlejeunea epiphylla Bischler. Microlejeunea acutifolia is a new record to Brazil and Microlejeunea epiphylla Bischler is mentioned for the first time to Para State. The species are described and illustrated and an artificial key is presented to separate them, as well as additional commentaries.

Cololejeuneae (Lejeuneaceae, Hepaticae) na Estação Científica Ferreira Penna, Melgaço, PA, Brasil

A survey of the Lejeuneaceae (Hepaticae) family was performed at Ferreira Penna Research Station, Melgaco municipality, Para State, where was observed eight species of Cololejeuneae. The species Aphanolejeunea truncatifolia Horik., Cololejeunea obliqua (Nees & Mont.) S.W. Arnell and C. surinamensis Tixier are new records for the State, while A. contractiloba (A. Evans) R.M. Schust., A. gracilis Jov.-Ast and A. winkleri Morales & A. Lucking are new records to Brazil. The species are described and illustrated and an artificial key is presented to identifying them, as well as additional comments.

Leptolejeunea e Rhaphidolejeunea (Lejeuneaceae) na estação científica Ferreira Penna, Pará, Brasil

A survey of the Lejeuneaceae (Hepaticae) family was performed at Ferreira Penna Research Station, Melgaco municipality, Para, where was observed Leptolejeunea eliptica (Lehm. & Lindenb.) Schiffn., Leptolejeunea tridentata Bischler and Rhaphidolejeunea polyrhiza (Nees) Bischler. Leptolejeunea tridentata is a new occurrence to Brazil. The species are described and illustrated and na artificial key is presented to separate them, as well as additional commentaries.

Leucophanaceae, nova família de Bryophyta para o Pará, Brasil

The ocurrence of Leucophanaceae, represented in the Neotropic by Leucophanes molleri C. Mull., is presented. The disjunct distribution of the specie in the Brazil, where was collected in the north and southeast regions, it is emphasized. Also is presented the morphology of L. molleri, with photomicrographs.