Jomar Gomes Jardim

Angiospermas em remanescentes de floresta montana no sul da Bahia, Brasil

A floristic study of three areas of montane Atlantic forest in southern Bahia, Brazil, was carried out. From 2004 to 2008 regular botanical collections were made, principally along trails in the interior of the forest fragments at: the Reserva Serra da Pedra Lascada (SPL), the Reserva Serra das Lontras (SLO) and the Reserva Particular do Patrimonio Natural Serra Bonita (SBO). The species richness of each area was compared to that of the other two, and together to other areas of Atlantic coastal forest in Bahia and southeastern Brazil. For all three areas, a total of 1129 species in 467 genera and 124 families were found. Trees represented 46.9% of the species, followed by herbs (20.1%), epiphytes (19.5%), and vines and lianas (13.5%). The families Araceae, Asteraceae, Bromeliaceae, Fabaceae, Lauraceae, Melastomataceae, Myrtaceae, Orchidaceae, Piperaceae, Poaceae, Rubiaceae, and Solanaceae showed the highest species richness for the three areas together. The genus Psychotria (Rubiaceae) had the highest number of species for all three areas (21 spp.), followed by Miconia (20 spp.), Solanum (20 spp.), Piper (19 spp.), Ocotea (16 spp.), Leandra (16 spp.), Peperomia (15 spp.), and Myrcia (14 spp.). The results confirm the high species diversity of angiosperms in southern Bahia and demonstrate for the first time the presence of species characteristic of montane regions of southeastern Brazil in this region.

Floristic composition and structure of the arboreal component of a transitional area of Atlantic forest in southern Bahia, Brazil

The purpose of this study was to attempt to detect a floristic transition in forest along an altitudinal gradient on a mountain side in southern Bahia, Brazil. The study site is located at the east-west transition from tropical moist to semideciduous forests. A belt transect of one hectare (10 × 1000 m) was established running up the slope (from ca. 350 m to 750 m elevation). All included trees and lianas > 5 cm in diameter at breast height were numbered, collected, and measured. Density, dominance, frequency, and importance values (IV) were calculated for each species. We encountered 1400 individuals and 264 species of woody plants in 56 families. Cariniana legalis (Mart.) Kuntze had the highest IV, based on the dominance of a small number of trees. Discocarpus pedicellatus Fiaschi & Cordeiro and Ampelocera glabra Kuhlm. were the most frequent trees, with 90 and 86 individuals respectively. Ninety-six species were represented by a single individual. The Fabaceae and Myrtaceae were the most diverse families with 37 and 31 species respectively. Cluster analysis and correspondence analysis (DCA) revealed that the composition of the forest along the uppermost 30 percent of the transect was distinct from the rest. The lower and upper forests can be considered respectively as semideciduous and moist forests. Although there are some well-marked floristic differences between these forests, both clearly belong to the southern Bahian sector of the Atlantic coastal forests.

Sistemática, taxonomia e florística das Rubiaceae brasileiras: um panorama sobre o estado atual e futuros desafios

The Rubiaceae is the fourth Angiosperm family in number of species in the World and in the Neotropics. Its overwhelming diversity and presence in most biomes, and at most vegetation layers, makes this family one of the most important components of tropical vegetation. During the last two decades, family classification went through several reorganizations, mostly influenced by the advent of molecular phylogenetic studies, and many taxonomic revisions and floristic studies on Brazilian Rubiaceae have become available. In view of the considerable amount of literature that has recently been produced on Neotropical Rubiaceae, the present work has two main objectives: the first is to offer an overall view of the most recent family classification with emphasis on the genera of Rubiaceae occurring in Brazil, and to indicate particular taxa that are still in need of phylogenetic and taxonomic studies; the second objective is to present a short discussion on the state of floristic and taxonomic knowledge with respect to the various regions of Brazil, indicating the taxa and the geographic areas that need to be studied.

Erythroxylaceae no Rio Grande do Norte, Brasil

This study focuses on the Erythroxylaceae found in the state of Rio Grande do Norte, Northeast Brazil. It is based on a morphological analysis of herbaria collections, as well as on a review of the relevant literature and on collections in the field. A total of 11 species were recorded for the state: Erythroxylum barbatum, E. caatingae, E. nummularia, E. passerinum, E. pungens, E. revolutum, E. rimosum, E. simonis, E. squamatum, E. subrotundum and E. vacciniifolium, of which seven are new records for Rio Grande do Norte. An identification key, descriptions, illustrations, habitat data, phenology, and species distribution are also provided.

A First Record of Freziera (Pentaphylacaceae) from the Brazilian Atlantic Forest, with the Description of a New Species

Abstract Freziera atlantica is described and illustrated. The species resembles F. grisebachii in terms of the size and shape of its leaves but differs especially by the serrate and villous margin of the leaf blade and larger petals. The new species is known from two disjunct localities in the Atlantic Forest of Brazil, in extremely endangered environments. All known specimens of F. atlantica were collected within the last three years. This new generic record for the Brazilian Atlantic Forest highlights the need for further floristic studies of forest remnants in the states of Bahia and Espírito Santo.

Rubiaceae Juss. de caatinga na APA Serra Branca/Raso da Catarina, Bahia, Brasil

The paper presents a survey of the species found in the APA Serra Branca/ Raso da Catarina, where were cataloged 21 species in eleven genera: Mitracarpus is the richest genus with four species (M. baturitensis, M. longicalyx, M. robustus, M. salzmannianus), followed by Staelia (S. aurea, S. galioides, S. virgata), Diodella (D. gardneri, D. radula, D. teres), Borreria (B. spinosa, B. verticillata), Cordiera (C. rigida, Cordiera sp.) and Guettarda (G. angelica, G. sericea). The other genera are represented by one species each, Emmeorhiza umbellata, Leptoscela ruellioides, Margaritopsis carrascoana, Richardia grandiflora e Tocoyena formosa. Were recorded three species endemic to the caatinga: G. angelica, G. sericea e M. longicalyx. In addition, M. carrascoana is the first record for the state of Bahia. Key for identification, descriptions, illustrations and comments about geographic distribution and phenology of the species are presented.

Two new species of Anthurium (Araceae) from Serra do Teimoso, Bahia, Brazil

SummaryTwo new species of Anthurium from Bahia, eastern Brazil, are described and illustrated. Both species belong to sect. Urospadix Engl. and are so far only known from the type locality, Serra do Teimoso, although they are common locally. Anthurium teimosoanum E. G. Gonç. & J. G. Jardim is known from the lowermost altitudinal zone of this upland area, whereas A. molle E. G. Gonç. & J. G. Jardim was only collected near the summit.

Papilionoideae (Leguminosae) na Mata Atlântica do Rio Grande do Norte, Brasil

This study presents a taxonomic account of the Papilionoideae (Leguminosae) from remnants of Atlantic Forest in the Brazilian state of Rio Grande do Norte. We recorded 68 species and 32 genera within the following tribes: Phaseoleae (11 genera/24 species), Dalbergieae (9/20), Swartzieae (3/3), Millettieae (2/4), Sophoreae (2/2), Abreae (1/1), Crotalarieae (1/3), Desmodieae (1/7), Indigofereae (1/3), and Sesbanieae (1/1). Ten genera and 32 species are newly recorded for the flora of Rio Grande do Norte. The most species-rich genera were Desmodium (7 species), Centrosema (5), Stylosanthes (5), Aeschynomene (4), and Macroptilium (4). Herbaceous and shrubby species have predominated with 60% (41 spp.) of the total species diversity, following by the vines and lianas with 28% (19 spp.) and the trees with only 12% (8 spp.). Identification key, descriptions, diagnostic morphological characters, geographic distribution, and illustrations are also provided.

New genus and species records of Bromeliaceae in the Caatinga of Rio Grande do Norte state, northeastern Brazil: Orthophytum disjunctum L.B. Sm. (Bromelioideae) and Tillandsia paraibensis R.A. Pontes (Tillandsioideae)

In the present work we describe the first occurrence of the genus Orthophytum (Bromeliaceae, Bromelioideae) and of the species Tillandsia paraibensis within the state of Rio Grande do Norte, northeastern Brazil. Both taxa were recorded on inselbergs in areas of caatinga. These findings are important, improving the knowledge of the Flora of Rio Grande do Norte and giving a better understand of the biogeography of Brazilian bromeliads.

Diversidade florística de Rubiaceae na Serra da Fumaça – complexo de Serras da Jacobina, Bahia, Brasil

This paper is a survey of Rubiaceae species found in the Serra da Fumaca - Mountains Complex of Jacobina, Bahia. In the period of Juny/2011 until August/2012 were taken monthly from botanical material along trails and in the forest contemplating all vegetation types in the area. We recorded 36 species in 20 genera. The most representative in number of species were Borreria G.Mey. (5 spp.), Diodella Small,Mitracarpus Zucc. ex Schult. & Schult.f. andPsychotria L. (3 spp. each), followed by CoccocypselumP.Browne, Declieuxia Kunth, Palicourea Aubl.,Perama Aubl., Richardia L. and Staelia Cham. & Schltdl. (2 spp. each). The other genera were represented only by one species:Cordiera elliptica (Cham.) Kuntze, Coutarea hexandra(Jacq.) K.Schum., Emmeorhiza umbellata (Spreng.) K.Schum.,Genipa americana L. Guettarda sericea Mull.Arg.,Malanea macrophylla Bartl. ex Griseb., Manettia cordifolia Mart.,Posoqueria latifolia (Rudge) Roem. & Schult., Sabicea grisea Cham. & Schltdl. and Tocoyena formosa (Cham. & Schltdl.) K.Schum.). Two endemic species were recorded, one of the Chapada Diamantina (Perama harleyi J.H.Kirkbr. & Steyerm.) and one of caatinga (Guettarda sericea Mull Arg.). Psychotria jambosioides Schltdl. and P. mapourioides DC. were recorded for the first time to the Espinhaco Range, both known only from the Atlantic coast. Identification key to the species, descriptions, illustrations and information on the geographical distribution of species and phenological data are displayed.