The taxonomy of some Swartzieae (Leguminosae, subfam. Papilionoideae) from southeastern Brazil

Three new species of Swartzieae are described and illustrated: Swartzia alternifoliolata, S, capixabensis, and Zollernia cowanii. Swartzia apetala var, blanchetii and var, subcordata are considered to he synonyms of S. apetala var. apetala, and S, grazielana a synonym of S. macrostachya var. macrostachya. Keys to southeastern Brazil members of Swartzia and Zollernia are provided.51214915

Floral ontogeny of Lecointea, Zollernia, Exostyles, and Harleyodendron (Leguminosae : Papilionoideae : Swartzieae s.l.)

Floral initiation and development were examined using scanning electron microscopy in Exostyles venusta, Harleyodendron unifoliolatum, Lecointea hatschbachii, and Zollemia ilicifolia. Common features include (1) unidirectional sepal initiation, (2) simultaneous petal initiation, (3) unidirectional initiation of each stamen whorl (except in the antesepalous whorl in Lecointea and Exostyles), (4) overlap in time of initiation of the two stamen whorls, and (5) initiation of the carpel concurrently with petals. Significant developmental features include (1) the first sepal median abaxial in all except Lecointea where it is non-median abaxial; (2) intraspecific variation in petal aestivation in Exostyles, Harleyodendron, and Lecointea; (3) initiation of antepetalous stamens before the antesepalous ones in Zollernia. Exostyles, and Lecointea; and (4) ovule initiation before the carpel margins are fused in Exostyles. The stamen sequence has not been found in any other legumes. The following late developmental events distinguish the four genera from each other: copious hairs hold the anthers together as a domelike structure at anthesis in Harleyodendron; zygomorphy in Zollernia results from differing petal reflexion; late hypanthium in Exostyles, Lecointea, and Holocalyx (no hypanthium in Harleyodendron or Zollernia); and reflexed sepal lobes in Exostyles, Harleyodendron, and Zollernia but not in Holocalyx and Lecointea. The genera studied here are ontogenetically more similar to taxa of Sophoreae than to other Swartzieae that have been investigated. None of the taxa studied here has a ring meristem, the structure that characterizes the remaining swartzioid taxa studied elsewhere.89101553156

Updates to the taxonomy of Swartzia (Leguminosae) in extra-Amazonian Brazil, with descriptions of five new species and a regional key to the genus

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)In advance of an updated monographic revision of Swartzia (Leguminosae), we discuss the taxonomy of the genus in extra-Amazonian Brazil and present descriptions of five new species. All of the new species are narrowly distributed in eastern Brazil in threatened Atlantic wet forest and coastal scrub habitats. Four of them-S. alagoensis, S. arenophila, S. revoluta, and S. submontana -belong to the diverse and taxonomically challenging section Acutifoliae, which has undergone extensive evolutionary radiation in the region. The fifth, S. thomasii, is a member of the otherwise Amazonian section Glabriplantae and is only subtly distinct from the Amazonian species S. reticulata. The new species and other recent additions to the genus are incorporated in a key to the species of Swartzia of extra-Amazonian Brazil.642119138National Science Foundation [DEB-0309162, DEB-0918498]Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)National Science Foundation [DEB-0309162, DEB-0918498]CNPq [312766/2009-2

Composition of the Lecointea clade (Leguminosae, Papilionoideae, Swartzieae), a re-evaluation based on combined evidence from morphology and molecular data

We investigated morphological and DNA sequence data for studying the composition and phylogenetic relationships of the Lecointea clade sensu Herendeen and for testing its monophyly. Twenty nine representing 14 genera were analyzed, including all members of the Lecointea clade and some species of the genera Acosmium, Luetzelburgia, Sweetia, Vatairea and Pataireopsis. Ateleia herbert-srnithii, Bocoa mollis, and Myrocarpus frondosus were included as outgroup. Matrices were analyzed using maximum parsimony. Analyses of morphological data, chloroplast DNA trnL sequence data, and combined datasets resulted in similar tree topologies. The Lecointea clade sensu Herendeen, with the additional inclusion of Uribea, is monophyletic in all analyses. Exostyles and Harleyodendron belong to the Lecointea clade and not to the Vatairea clade as recently proposed by Pennington al.5341007101

Mucuna globulifera (Leguminosae: Papilionoideae), a new species from Costa Rica, Panama and Colombia

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)new species of Mucuna (Leguminosae) from Costa Rica, Panama and Colombia is described and illustrated. Although the species is morphologically grouped with a number of species from Central and South America that have the primary axis of their inflorescences condensed, M. globulifera is distinguished by a suite of characters, including a condensed primary inflorescence axis (very reduced internodes, the nodes up to approximately 1 mm apart from the one above), an extremely long peduncle, secondary bracts surrounding a large and conspicuous globose structure when the inflorescence is young, flowers usually pale salmon in colour, fruits softly villous and lacking urticating trichomes, and the presence of very sparse appressed hairs on the leaflet surfaces, or the leaflets almost glabrous.681151155Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Rupert Barneby Award programme of The New York Botanical Garden, FAEPEX UNICAMP [43211]Shirley A. Graham fellowships in Systematic Botany and Biogeography of Missouri Botanical GardenDarwin Initiative of the UK Department for the Environment, Food and Rural Affairs (Defra) [15/027]Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)CAPES [4627-11-3]Rupert Barneby Award programme of The New York Botanical Garden, FAEPEX UNICAMP [43211]Darwin Initiative of the UK Department for the Environment, Food and Rural Affairs (Defra) [15/027]FAPERJ [E-26/110.331/2012

A New Species of Mucuna (Leguminosae-Papilionoideae-Phaseoleae) from Costa Rica and Panama

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)A new species of Mucuna from Costa Rica and Panama is described and illustrated. Mucuna monticola is mainly known from the highlands of the Cordilleras of Guanacaste, Tilaran, Central and Talamanca in Costa Rica, and in Panama in particular from the Chiriqui area. It is superficially similar to Mucuna mutisiana and M. killipiana, but it differs from both in multiple aspects of its morphology and is unique among Neotropical Mucuna in its pod, which is larger and longer with conspicuous irregular lamellae or reticulate-ridged, not constricted between the seeds.6018Rupert Barneby Award of The New York Botanical GardenFAEPEX/UNICAMP [43211]Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)FAEPEX/UNICAMP [43211]FAPERJ [E-26/110.331/2012]CAPES [4627-11-3