Flora da Bahia: Poaceae – Dichanthelium (Panicoideae)

Aqui, apresentamos a flora do gênero Dichanthelium (Panicoideae, Poaceae) para o estado da Bahia, Brasil. São reconhecidas 13 espécies, das quais oito são endêmicas. O presente trabalho inclui chave de identificação para as espécies, descrições, ilustrações, mapas de distribuição e comentários sobre os táxons.

Flora da Bahia: Leguminosae – Enterolobium (Clado Mimosoide: Ingeae)

We present the taxonomic treatment of the genus Enterolobium for the state of Bahia, Brazil. Five species were recorded, for which we provide an identification key, descriptions, comments, data on the period of fruiting and flowering, as well as illustrations and maps of geographical distribution in Bahia.

Flora da Bahia: Onagraceae

The flora of Onagraceae is presented for the Bahia State, Brazil. Twenty native species are recognized in two genera. Fuchsia, represented only by F. regia, is reported for the first time in the State. The genus Ludwigia presented 19 species, seven of which are new occurrences for Bahia: L. affinis, L. brachyphylla, L. elegans, L. decurrens, L. quadrangularis, L. sericea and L. torulosa. Identification keys, descriptions and comments for taxa as well as photos and distribution maps for species in the state are presented.

Relação entre coloração e atividade antibacteriana do mel da Bahia

Honey is a material of varied consistency and color, produced by bees from material collected in flowers, the nectar. It has a complex chemical composition, which depends on several factors, mainly of botanical and climatic origin, and a color scale for honey has been established. In this study, we evaluated the relationship between the color of 10 honey samples collected in the state of Bahia and their activity against three species of bacteria: Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. The antibacterial potential was verified in all samples and a significant relationship between color and microbial activity against Staphylococcus aureus was obtained, reinforcing the hypothesis that darker honeys tend to have greater antibacterial potential.

Nymphaeaceae of Brasil

A review of the native species of Nymphaeaceae from Brazil is presented, in which two genera (Nymphaea and Victoria) and 23 species, are recognized. Of these, 16 have been previously described: Nymphaea amazonum, N. belophylla, N. conardii, N. gardneriana, N. glandulifera, N. jamesoniana, N. lasiophylla, N. lingulata, N. oxypetala, N. potamophila, N. prolifera, N. pulchella, N. rudgeana, N. tenerinervia, N. vanildae and Victoria amazonica; five are described as new species: N. caatingae, N. francae, N. harleyi, N. paganuccii and N. rapinii; and N. amazonum subsp. pedersenii was elevated to the species rank, as N. pedersenii. Lectotypes are designated to Nymphaea alboviridis, N. amazonum, N. fenzliana, N. lasiophylla, N. nervosa, N. tenerinervea, Victoria cruziana and V. regia, and a neotype is designaed to Victoria amazonica. The paper includes detailed descriptions, illustrations of all the species, as well as notes on their reproductive biology and taxonomy, providing the first complete account of the family for Brazil since that by Caspary in Flora Brasiliensis, in 1878.

Primeiro registro do uso medicinal do gênero Cleoserrata (Cleomaceae)

Medicinal use of Cleoserrata (Cleomaceae)

Flora da Bahia: Leguminosae – Centrosema (Papilionoideae: Phaseoleae)

The taxonomic treatment of Centrosema (Leguminosae) from the State of Bahia, Brazil, is presented. Fifteen species are recognized, which represents 50% of the Centrosema species recorded in Brazil. The treatment includes keys to identification, descriptions, illustrations, general notes and geographic distribution maps for the species in Bahia.

Flora da Bahia: Astraea (Euphorbiaceae)

This work presents the taxonomic treatment of the genus Astraea in Bahia. The state, along with Minas Gerais, has the highest diversity of Astraea, with seven species recognized: A. digitata, A. gracilis, A. klotzschii, A. paulina, A. praetervisa, A. subcomosa and A. surinamensis. The treatment includes an identification key, descriptions, photographs and distribution maps, besides comments on geographical distribution, habitat and phenology.

Syagrus coronata (Arecaceae) phenology and the impact of fire on survival and reproduction of the licuri palm

Three years of reproductive phenological data (1983–1986) were analyzed for 331 licuri palms (Syagrus coronata) in a natural population in Feira de Santana, Bahia, Brazil. Using a one-year subset of the data, we also compared the phenologies of 83 individuals burned by wildfires and 248 unburned individuals to examine the impact of fire on S. coronata. Burned specimens showed slightly delayed fruiting compared to non-burned specimens, but a randomization test showed no significant difference between the two groups, suggesting that licuri palms are capable of surviving wildfires with almost no interruption to their phenological cycles.

Flora da Bahia: Cunoniaceae

We present a floristic survey of the Cunoniaceae of the state of Bahia, Brazil. Four species in two genera were found: Lamanonia speciosa, restricted to the Conquista Plateau, in the southeast of the state; L. ternata, widely distributed in the Chapada Diamantina and Atlantic Forest of southern Bahia; Weinmannia humilis, recorded here for the first time in Bahia, only in the montane forests of the south of the state; and W. paulliniifolia, restricted to the Chapada Diamatina. A taxonomic key, descriptions, illustrations, and general notes on species distribution and morphological affinities are provided.