A new species of Myrcia (Myrteae, Myrtaceae) from the Atlantic Forest of southern Bahia, Brazil

Myrcia thomasii, a new species from the Atlantic Forest of southern Bahia, is described and illustrated. The new species is similar to M. micropetala, but differs in having the inflorescence and basal bracts puberulent, lanceolate bracts at the base of flowers, longer calyx lobes and petals, and a 3-locular ovary.     

A new species of Senna (Caesalpiniaceae) from coastal northern Bahia,Brazil

Irwin, Howard S. (Clark Garden, 193 I. U. Willets Road, Albertson, NY 11507) and Rupert C. Barneby (New York Botanical Garden, Bronx, NY 10458-9980). A new species of Senna (Caesalpiniaceae) from coastal northern Bahia, Brazil. Brittonia 37: 192–194. 1985. - Senna (sect. Chamaefistula ser. Laxiflorae) phlebadenia, closely akin to S. australis, but the only known species of the genus with secondary veins of leaflets excurrent into a marginal nectary, is described and illustrated from two collections from the coastal plain of Bahia northeast of Salvador.     

A new species of Adiantum (Pteridaceae) from Bahia, Brazil

A new species,Adiantum discolor Prado (Pteridaceae), known only from the wet forests of eastern coastal Brazil, in Bahia, is described and illustrated. It is distinguished principally by its 2-pinnate fronds with a long stipe, 2 or 3 pairs of lateral pinnae, discolorous laminae, and glabrous indusia. Uma nova espécie,Adiantum discolor Prado (Pteridaceae), conhecida somente das florestas úmidas da costa leste do Brasil, no Estado da Bahia, é descrita e ilustrada. Distingüe-se princi-palmente pelas frondes 2-pinadas com um longo pecíolo, 2 ou 3 pares de pinas laterais, laminas discolores e indúsios glabros.     

A new species of Krameria (Krameriaceae) from Bahia,Brazil

Krameria bahiana B. B. Simpson is described from Bahia, Brazil. The species occures in restinga vegetation on relic dunes near the city of Salvador and on mesas in the interior of the state.     

A new species of Inga (Fabaceae,Mimosoideae, Ingeae) from Atlantic Forest in Bahia,Brazil

Inga unica Barneby & J. W. Grimes, notable for a syndrome of: a) softly pilose foliage, b) emarginate leafstalks lacking nectaries, c) leaflets 2–3 pairs, of moderate size, d) filiform pliant peduncles, e) globose capitula, f) elongate linear floral bracts persistent after fall of the flowers, g) calyx more than half as long as corolla, and h) thin-textured fruit shattering after falling, is described, figured, and discussed. It appears related toI. (Leptinga) nutans (Vellozo) Martius ex Bentham.     

Schefflera aurata, a new species of Araliaceae from southern Bahia, Brazil

Schefflera aurata, a new species of Araliaceae endemic to the restinga forests of southern Bahia, Brazil, is described and illustrated. It is probably related toS. morototoni, but can be distinguished by leaflets with strongly coriaceous blades, cuspidate apices, goldensericeous indument of the abaxial surfaces, partial inflorescences with 8–12 subsessile flowers, elongated ovaries, and distinctly larger fruits.     

Three new species of Dendropanax (Araliaceae) from Bahia, Brazil

Three new species of BrazilianDendropanax from the rain forests of Bahia state are described and illustrated.Dendropanax amorimii, endemic to the rain forests near Boa Nova, in southern Bahia, is characterized by compound umbellate inflorescences with elongated primary branches each having a proximal whorl of bracts, and by leaves with well-developed tertiary venation.Dendropanax bahiensis, endemic to the Atlantic rain forests of southern Bahia, is distinguished by its large and membranous leaves with reddish schizogenous glands on the abaxial surface and by the reduced and branched inflorescences with short-pedicellate flowers and large fruits.Dendropanax geniculatus, an endemic species from the “matas de grotão” of Serra da Chapadinha, Chapada Diamantina, is characterized by simple and usually geniculate inflorescences bearing long-pedicellate flowers and fruits.     

A new species of Chamaecrista Moench (Caesalpiniaceae) from interior Bahia,Brazil

Chamaecrista arboae, a species of sect.Absus ser.Absoideae newly discovered on Chapada Diamantina in interior Bahia, Brazil, is described, figured, and discussed.     

A new species of Aspidosperma Mart. (Apocynaceae) from Bahia, Brazil

A new species,Aspidosperma thomasii, collected in the vicinity of Uruçuca is described. It belongs to subgenusAspidosperma sectionAspidosperma and is closely related to theA. parvifolium A. DC. group.     

Two new species of Mendoncia (Acanthaceae) from Bahia, Brazil

Two new species, Mendoncia bahiensis and Mendoncia blanchetiana, of the subgenus Bremekampia are described and illustrated. A key to four species represented in Bahia and commentary on their taxonomic affinities are provided.     

Karyology of the Atlantic forest rodent Juliomys (Cricetidae): A new karyotype from southern Brazil

Juliomys is a small rodent from the family Cricetidae which inhabits the Atlantic forest and forests from Argentina to eastern Brazil. The three species recognized so far have different karyotypes. In this paper, we describe a new karyotype with 2n = 32, FN = 48 found in Juliomys specimens from a high-altitude area in the Atlantic forest of southern Brazil. The karyotype was analyzed after G- and C-banding and silver staining of the nucleolus organizer regions (Ag-NOR) and its G-banding patterns were compared with those of the newly described species Juliomys ossitenuis (2n = 20, FN = 36). The 2n = 32 karyomorph presented peculiar features and was very different from those of the other species of the genus: J. pictipes (2n = 36, FN = 34), J. rimofrons (2n = 20, FN = 34) and J. ossitenuis (2n = 20, FN = 36). Differences were mostly due to centric and tandem fusions, pericentric inversion and loss of heterochromatin. The karyotype represents a powerful tool to differentiate Juliomys species and our data suggest that the karyotype described herein belongs to a new species.     

A new species of Phyllanthus (Phyllanthaceae) from Chapada Diamantina, Bahia, Brazil

During a study of the genus Phyllanthus (Phyllanthaceae) in Chapada Diamantina, Bahia, a new species Phyllanthus gongyloides Cordeiro & Carneiro-Torres sp. nov. was found and is described and illustrated here. It is probably endemic to the area and is placed in subgen. Phyllanthus , sect. Phyllanthus , subsect. Clausseniani G. L. Webster. A new couplet to Webster's available key to the subsection is provided . © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society , 2004, 146 , 247–250.     

A new species of Heteropterys (Malpighiaceae) from the semideciduous forests of Bahia, Brazil

Heteropterys andersonii, related to seriesMetallophyllis Nied., is described as new and illustrated.

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Resumen   Heteropterys andersonii, relacionada a sérieMetallophyllis Nied., é descrita como nova e ilustrada.

     

A new acicular-leaved species of Sauvagesia (Ochnaceae) from Chapada Diamantina, Bahia, Brazil

A new species of Sauvagesia is described and illustrated under the name Sauvagesia paniculata. This new species is morphologically similar to the acicular-leaved species of the subsect. Vellozianae. However, S. paniculata can be clearly differentiated from the other acicular-leaved species by the paniculate inflorescence. Other diagnostic characters of S. paniculata include the shorter pedicel and longer leaves. This new species seems to be narrowly endemic to the “campo rupestre” vegetation in the Esbarrancado mountain range of Mucugê, in the Chapada Diamantina, Bahia, Brazil.     

A new species of sigmodontine rodent from the Atlantic forest of eastern Brazil

We describe a new sigmodontine species on the basis of three specimens obtained from a high-altitude locality in the Atlantic forest of eastern Brazil. This new form, a small-bodied pentalophodont with tail longer than head and body, long soft fur, and a brownish ochraceous dorsum, is diagnosed by the presence of an open slit in the suture between the frontal bones in prepared skulls, and by a reduced diploid number of 20 coupled with a relatively high fundamental number of 34. Although the low diploid number suggests a derived sigmodontine, analyses of morphological characters and DNA sequence data (720 bp of the cytochrome-b gene) point to its placement within the recently described genusJuliomys González, 2000, a taxon regarded as belonging to an old and independent sigmodontine lineage. This finding reinforces current hypotheses of the Atlantic forest domain as an important center of diversification for a primitive sigmodontine stock. It also suggests that at least some surviving lineages, often considered rather ancient and unspeciose relicts, were subject to relatively more recent speciation events.     

A new species of Stenochironomus Kieffer, 1919 from the Atlantic Rainforest in southern Brazil (Diptera: Chironomidae)

Stenochironomus falcifer sp. n. is described and figured based on the characters of a male adult. The species was collected in Malaise traps in the Serra Furada State Park (PAESF), in Santa Catarina State, southern Brazil. It can be separated from all other species of Stenochironomus Kieffer, 1919 Kieffer, J.J. (1919), ‘Chironomiden der Nördlichen Polarregion’, Entomologische Mitteilungen, 8, 40–48. [Google Scholar] by its unique thorax pigmentation, with two dark patches on the lateral vittae, brownish postnotum and dark stripes on the scutum, and also by the combination of a narrow, parallel-sided anal point, inferior volsella with a stout apical seta, rounded posterior margin of the tergite IX and green metallic eyes.

http://zoobank.org/urn:lsid:zoobank.org:act:3646E02D-7E3F-487A-BED1-A7937AFF8040     

A new species of Dendrocerus (Hymenoptera,Megaspilidae) from southern Brazil

A new species of the megaspiline genus Dendrocerus Ratzeburg is described and figured. Dendrocerus riograndensis sp. n., is known from a series of males from the central region of Rio Grande do Sul, Brazil, and were captured with Malaise traps from an agricultural tobacco field.     

A new species of Ilex (Aquifoliaceae) from Espinhaço Range, Bahia, Brazil

A new species, Ilex mucugensis Groppo sp. nov. (Aquifoliaceae), is described and illustrated. The species is known only from 'campos rupestres' (vegetation of rock outcrops at high altitude) in the vicinity of Mucugê, Bahia State, Brazil, in the mountains of the Espinhaço Range. Comments on affinities, geographical distribution and phenology of the new species are also provided.  © 2007 The Linnean Society of London, Botanical Journal of the Linnean Society , 2007, 155 , 153–156.