A Monograph of the Brazilian endemic genus Lavoisiera (Melastomataceae: Microlicieae)

Phytotaxa ◽  
2017 ◽  
Vol 315 (1) ◽  
pp. 1 ◽  
Author(s):  
ANGELA B. MARTINS ◽  
FRANK ALMEDA
Keyword(s):  
Amazon Basin ◽  
Meiotic Chromosome ◽  
Field Work ◽  
Seed Morphology ◽  
Campo Rupestre ◽  
Sem Images ◽  
Endemic Genus ◽  
Distribution Maps ◽  
Conservation Assessments ◽  
Sectional Classification

A systematic monograph is presented for Lavoisiera, a Brazilian endemic genus of 41 species that is centered in the campo rupestre ecoregion in the Brazilian Planalto south of the Amazon basin, mostly west of the Mata Atlântica (Atlantic Rainforest), and east of the Pantanal. The stronghold for species diversity is the state of Minas Gerais with 36 species, 30 of which are endemic there. This study represents the first comprehensive monograph of the genus based on field work across its distributional range, complemented by examination of over 3620 specimens from 35 herbaria. An evaluation of taxonomic characters used in the long-standing sectional classification of the genus has led to its abandonment because it is based on artificial characters and does not provide a sound working hypothesis of infrageneric relationships. Eight new species are described: L. arachnoidea, L. belinelloi, L. canastrensis, L. daviesiana, L. minima, L. rundeliana, L. setosa, and L. vestita; lectotypifications are provided for L. caryophyllea, L. chamaepitys, L. glandulifera, L. pulchella, and L. senae; and 44 epithets are relegated to synonymy. An identification key, full synonymy, descriptions, habitat and phenological information, distribution maps, diagnostic illustrations, images of representative species in the field, and geospatial conservation assessments are provided for all species based on IUCN criteria. SEM images of seed morphology are presented for nearly half of the species along with camera lucida drawings of meiotic chromosome figures for selected species, and an index to numbered collections examined.

Systematics of Ichnanthus hoffmannseggii and allies (Poaceae, Paspaleae) based on molecular and morphological evidence

Phytotaxa ◽  
2016 ◽  
Vol 267 (4) ◽  
pp. 263 ◽  
Author(s):  
CHRISTIAN SILVA ◽  
GERRIT DAVIDSE ◽  
ALESSANDRA SELBACH SCHNADELBACH ◽  
REYJANE PATRÍCIA DE OLIVEIRA
Keyword(s):  
Related Species ◽  
Phylogenetic Relationships ◽  
Field Work ◽  
Distinct Species ◽  
Morphological Evidence ◽  
Phylogenetic Study ◽  
Sem Images ◽  
Distribution Maps ◽  
The Relationship ◽  
Panicoid Grass

Ichnanthus hoffmannseggii is an annual panicoid grass that occurs in sandy and open areas of Brazil and currently includes I. piresii in its synonymy. However, herbarium and field work led us to question this circumscription. In a previous phylogenetic study, a specimen with morphological affinities to I. hoffmannseggii was recovered as more related to Echinolaena oplismenoides (currently I. oplismenoides). This study aimed to clarify the relationship between I. hoffmannseggii, I. oplismenoides, and I. piresii using molecular and macro- and micromorphological data. We recognize these three taxa as distinct species and provide characters for distinguishing them and related species, including descriptions, comments, illustrations, distribution maps, SEM images of the upper anthecium, and phylogenetic relationships.

scholarly journals Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America

Phytotaxa ◽  
2014 ◽  
Vol 179 (1) ◽  
pp. 1 ◽  
Author(s):  
Diana Lucia Gamba-Moreno ◽  
Frank Almeda
Keyword(s):  
Seed Morphology ◽  
Morphological Data ◽  
Conservation Assessment ◽  
Sem Images ◽  
Natural Group ◽  
Distribution Maps ◽  
Constituent Species ◽  
Molecular Phylogenetic ◽  
Tropical America ◽  
Ancestral Character States

The Octopleura clade of Miconia is a natural group of Neotropical subshrubs and small trees comprising some thirty-three species. These had previously been described in Ossaea and Clidemia, two traditionally recognized genera of Miconieae, but this natural group is nested within the megadiverse genus Miconia. This study represents the first comprehensive monograph of the clade across its entire range based on a study of over 2100 collections from seven herbaria. Thirteen new combinations are made (Miconia aguilarii, M. aurantiaca, M. biolleyana, M. boekei, M. chocoensis, M. evanescens, M. incerta, M. laxivenula, M. palenquensis, M. quinquenervia, M. radicans, M. reitziana, and M. rufibarbis). Thirteen new names are provided for epithets preempted in Miconia (M. albertobrenesii, M. alboglandulosa, M. approximata, M. atropurpurea, M. bensparrei, M. bractiflora, M. erikasplundii, M. magnifolia, M. neocoronata, M. quadridomius, M. sessilis, M. spiciformis, and M. variabilis). Six new species are proposed (M. alatissima, M. anchicayensis, M. formicaria, M. latidecurrens, M. renatoi, and M. veraguensis). A taxonomic key, detailed descriptions, distribution maps, and phenological and ecological information are presented for all species, along with SEM images of seed morphology for selected species. A preliminary geospatial conservation assessment is made for each species. Diagnostic illustrations are included for all new taxa and other selected species. A molecular phylogenetic analysis based on four genic loci is presented, along with a reconstruction of ancestral character states. Molecular and morphological data are used to develop a better understanding of the constituent species of the clade and their evolutionary relationships. Three subclades, Approximata, Quinquenervia, and Variabilis, are evident within the Octopleura clade, and supported by morphological synapomorphies.

scholarly journals Six new species of coffee (Coffea) from northern Madagascar

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Aaron P. Davis ◽  
Franck Rakotonasolo
Keyword(s):  
New Species ◽  
Distribution Maps ◽  
Line Drawings ◽  
Conservation Assessments

SummarySix new species of Coffea are described as new to science: Coffea callmanderi, C. darainensis, C. kalobinonensis, C. microdubardii, C. pustulata and C. rupicola. All six species are endemic to northern Madagascar; four species are narrowly endemic to specific forest areas. Associated information, including distribution maps, conservation assessments, phenology and taxonomic notes are provided, and two species are illustrated with line drawings.

scholarly journals The Genus Plagiothecium Schimp. (Plagiotheciaceae, Bryophyta) in Eurasia: An Annotated Checklist with Distribution and Ecological Data

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 868
Author(s):  
Grzegorz J. Wolski ◽  
Samar Nour-El-Deen ◽  
Alicja Cienkowska ◽  
Daniel Bożyk ◽  
Wagieh El-Saadawi
Keyword(s):  
Relevant Literature ◽  
Single Species ◽  
Future Research ◽  
Ecological Data ◽  
Widespread Species ◽  
Entire Study ◽  
Distribution Maps ◽  
Sectional Classification ◽  
Pleurocarpous Moss ◽  
Annotated Checklist

An annotated checklist of the pleurocarpous moss genus Plagiothecium in Eurasia is presented for the first time based on a thorough review of the literature. Data have been compiled from previous relevant works conducted on the genus over more than 70 years and published up to the end of June 2020 for 107 Eurasian countries (and islands). Sectional classification is based on molecular phylogeny of the genus published recently. A total of 41 taxa are reported, including 29 species and 12 infraspecific taxa (nine varieties and three forms) belonging to eight sections. The highest numbers of taxa were found in China (20 taxa), the Russian Federation (20 taxa) and Japan (18 taxa), while the smallest numbers of taxa were recorded in the Middle East, Central Asia and the islands area. Not a single species of Plagiothecium was recorded in 26 regions, whereas P. denticulatum, P. nemorale and P. cavifolium turned out to be the most widespread species in the entire study area. They were recorded in most of the surveyed countries and islands. For each accepted taxon, information on relevant literature, synonyms, distribution within Eurasia and globally are provided. Comments on each taxon, ecological preferences, and notes on doubtful records are also included. Additionally, distribution maps for each recognised taxon are supplied. This checklist can enlighten and foster a better understanding of the distribution, diversity, and ecology of Plagiothecium in Eurasia and provides an incentive for future research on the genus.

Integrative assessment of the floristic diversity of Gentianaceae in an area of campo rupestre of the Espinhaço Range in the state of Bahia, northeastern Brazil

Phytotaxa ◽  
2021 ◽  
Vol 500 (2) ◽  
pp. 61-94
Author(s):  
JÉSSICA LEÃO BARBOSA TANAJURA ◽  
CAROLINA SANTOS PINHO ◽  
RILQUER MASCARENHAS DA SILVA ◽  
MARIA LUIZA SILVEIRA DE CARVALHO
Keyword(s):  
Field Work ◽  
Common Species ◽  
Predictive Distribution ◽  
Northeastern Brazil ◽  
Campo Rupestre ◽  
Conservation Unit ◽  
Habitat Specificity ◽  
Floristic Similarity ◽  
Espinhaço Range ◽  
Integrative Assessment

This study aimed to assess the diversity of species in the Espinhaço Range (ER), eastern Brazil, using as a model the diverse plant family Gentianaceae and focusing on the Parque Municipal de Mucugê—Projeto Sempre Viva (PMM), a conservation unit with predominance of  “campo rupestre”. For this purpose, fieldwork expeditions were carried out between the years 2016–2018 along with a survey of species of this family recorded for this conservation unit in public databases. For comparative purposes, the listing of species from other five areas of the ER were also surveyed and we modeled the distribution of species endemic to these mountains, taking into account that they have their restrict distribution, high habitat specificity and importance to the ecosystem. The results indicated the presence of 33 species of Gentianaceae for the ER, eight of them occurring in the PMM. Comparatively, the results pointed to a greater floristic similarity between the PMM, Pico das Almas and Catolés, due to the presence of seven common species. Predictive distribution modeling supports high endemicity of the analyzed species, given their low environmental suitability outside the ER. The models also allowed us to identify possible areas showing high Wallacean shortfall for these species. Thus, the results reinforce the importance of field work, access to physical and digital botanical collections and the integrated use of tools for a more reliable survey of biodiversity.

A taxonomic revision of the genus Sorbaria (Rosaceae) with a new infrageneric classification based on morphology, micromorphology, and palynology

Phytotaxa ◽  
2021 ◽  
Vol 487 (1) ◽  
pp. 1-25
Author(s):  
JUN-HO SONG ◽  
SUK-PYO HONG
Keyword(s):  
Taxonomic Revision ◽  
Identification Key ◽  
Herbarium Specimens ◽  
Field Observations ◽  
Morphological Examination ◽  
Infrageneric Classification ◽  
Distribution Maps ◽  
Palynological Data ◽  
Diagnostic Characteristics ◽  
Sectional Classification

In the present study, we presented a taxonomic revision of the genus Sorbaria (Sorbarieae; Amygdaloideae) with a new infrageneric classification. Moreover, we extensively reviewed various data for Sorbaria species, including previous anatomical, micromorphological, and palynological data. The new sectional classification was based on morphological, micromorphological, and palynological evidence, with two sections: sect. Sorbaria aut. and sect. Kirilowiana J.-H. Song & S.-P. Hong (sect. nov.). Overall, four species and five varieties (including two nomenclatural novelties) were recognized: S. sorbifolia (Linnaeus) A. Braun var. sorbifolia, S. sorbifolia var. glandulifolia J.-H. Song & S.-P. Hong, S. sorbifolia var. stellipila Maximowicz, S. pallasii (G. Don) Pojarkova, S. tomentosa (Lindley) Rehder var. tomentosa, S. tomentosa var. angustifolia (Wenzig) Rahn., S. kirilowii (Regel & Tiling) Maximowicz var. kirilowii, S. kirilowii var. arborea (C.K. Schneider) J.-H. Song & S.-P. Hong (comb. & stat. nov.), and S. kirilowii var. dubia (C.K. Schneider) J.-H. Song & S.-P. Hong (comb. nov.). Some illustrations and syntype were designated as the lectotype for several names. The classification was based on a comprehensive morphological examination of herbarium specimens, including field observations and observations of types, micromorphological, and palynological characteristics. In addition, we provided an identification key, diagnostic characteristics, full descriptions, comprehensive nomenclatural treatments and taxonomic notes (including complete synonymy), and distribution maps of Sorbaria species.

A taxonomic Revision of Calytrix Labill. (Myrtaceae)

Brunonia ◽  
1987 ◽  
Vol 10 (1) ◽  
pp. 1 ◽  
Author(s):  
LA Craven
Keyword(s):  
New Taxa ◽  
Taxonomic Revision ◽  
Floral Biology ◽  
Taxonomic Rank ◽  
Infrageneric Classification ◽  
Distinctive Features ◽  
Endemic Genus ◽  
Distribution Maps ◽  
Adaptive Structure ◽  
Biological Aspects

A taxonomic revision of Calytrix Labill., an Australian endemic genus of Myrtaceae, tribe Chamelaucieae, is presented. Lhotskya Schauer is reduced to a synonym of Calytrix. Seventy-two species are recognized of which the following 22 are described as new: C. amethystina, C. carinata, C. chrysantha, C. divergens, C. duplistipulata, C. eneabbensis, C. erosipetala, C. formosa, C. gurulmundensis, C. gypsophila, C. habrantha, C. islensis, C. microcoma, C. parvivallis, C. paucicostata, C. platycheiridia, C. praecipua, C. rupestris, C. similis, C. truncatifolia, C. verruculosa and C. warburtonensis. Two species comprise two subspecies each, of which one, C. simplex subsp. suboppositifolia, is also described as new. Other than autonyms the following new names result from the transfer of Calycothrix and Lhotskya species to Calytrix, and/ or changes in taxonomic rank: C, acuttfolia, C, breviseta subsp. stipulosa, C. brownii, C. drummondii, C. glaberrima, C. harvestiana, C. merrelliana, C. nematoclada, C. purpurea, C. smeatoniana and C. sylvana. Distinctive features of the morphology are discussed. A new term, cheiridium, is proposed for an apparently adaptive structure formed from the peduncle and persistent, connate bracteoles. Other biological aspects that are discussed briefly include floral biology, fruit and dispersal, and geography. An informal infrageneric classification, based largely upon floral features, is outlined. New taxa are illustrated. Distribution maps are provided for all taxa.

Taxonomic Synopsis of Eriosema (Leguminosae: Papilionoideae, Phaseoleae) in Brazil

Phytotaxa ◽  
2019 ◽  
Vol 416 (2) ◽  
pp. 91-137 ◽  
Author(s):  
ELISA SILVA CÂNDIDO ◽  
WANDERLEIA DE VARGAS ◽  
LUÍSA MARIA DE PAULA ALVES BEZERRA ◽  
VIDAL DE FREITAS MANSANO ◽  
MOHAMMAD VATANPARAST ◽  
...  
Keyword(s):  
Field Work ◽  
Morphological Characters ◽  
Second Step ◽  
Correct Identification ◽  
Type Specimens ◽  
Distribution Maps ◽  
Savanna Vegetation ◽  
Tropical Environments ◽  
Species Complexes ◽  
Representative Species

Eriosema is a pantropical genus occurring mostly in savanna vegetation and grasslands of tropical environments, with approximately 150 species and two centers of diversity, one in Africa with about 110 species, and the other in the Neotropics with about 40 species. Considering the large number of Eriosema taxa in Brazil, including five recently described, and the lack of recent study that encompasses all species that occur in the country, a taxonomic synopsis of the Brazilian species of Eriosema was needed and is presented here. Herbaria collections, including type specimens, were consulted and field work was carried out in Brazil. Our study records 35 Eriosema species in Brazil, which concentrates most of the diversity of the genus in the Americas (85%; 35 out of 41 species). Most of this diversity occurs in the Central Brazilian savannas, particularly in the states of Goiás (29 taxa, eight endemic), and Minas Gerais (26 taxa, four endemic). Among all American species in the genus, Eriosema simplicifolium and E. crinitum have the broadest geographical distributions, and occur throughout Brazil and most part of the American continent. They form species complexes and future detailed studies will be necessary in order to understand taxon boundaries and delimitations. An identification key, taxon descriptions, information about type specimens as well as information on the habitat, phenological and geographical records, together with distribution maps, images of representative species in the field and the main morphological characters are provided to assist in the correct identification of this group of savanna plants. We also present 15 lectotypifications, out of which three are second-step.

Seven New Species of Microlicia (Melastomataceae: Microlicieae) from Minas Gerais, Brazil

2020 ◽  
Vol 45 (2) ◽  
pp. 277-293
Author(s):  
Ricardo Pacifico ◽  
Frank Almeda ◽  
Karina Fidanza
Keyword(s):  
New Species ◽  
Minas Gerais ◽  
The State ◽  
Diagnostic Characters ◽  
Distribution Maps ◽  
Line Drawings ◽  
Conservation Assessments

Abstract—Seven new species of the neotropical genus Microlicia are proposed (Microlicia capitata, M. coriacea, M. mutabilis, M. piranii, M. polychaeta, M. repanda, and M. sparsifolia). All seven species are known only from the state of Minas Gerais, Brazil, mainly in the Diamantina Plateau and/or the Serra do Cabral. Diagnoses, line drawings, distribution maps, notes on diagnostic characters, conservation assessments, and habitat and phenology are provided.

Kanakomyrtus (Myrtaceae): A New Endemic Genus from New Caledonia with Linear Stigma Lobes and Baccate Fruits

2009 ◽  
Vol 34 (2) ◽  
pp. 330-344 ◽  
Author(s):  
Neil Snow
Keyword(s):  
New Species ◽  
Reproductive Biology ◽  
New Caledonia ◽  
Field Work ◽  
Windward Side ◽  
Generic Type ◽  
Distribution Maps ◽  
Close Relationship ◽  
Unisexual Flowers ◽  
Species Descriptions

Kanakomyrtus (Myrtaceae) is a newly described genus endemic to New Caledonia. Kanakomyrtus myrtopsidoides, the generic type, is transferred from Eugenia. Five new species are described: K. mcphersonii, K. revoluta, K. dawsoniana, K. prominens, and K. longipetiolata. The genus occurs in forests at elevations between 500–1,600 m on the relatively mesic windward side of the Grande Terre. It is distinct from other baccate genera of Myrtaceae by a combination of linear stylar lobes, densely glandular stamens and stigmas, and a short but densely hoary indumentum that is brownish when dry. The thinly membranous partitions that partially extend between the seeds of some species suggest a close relationship to Archirhodomyrtus and some species traditionally placed in Rhodomyrtus and Octamyrtus. Four of the six species have unisexual flowers, but much additional field work is needed to assess the reproductive biology of the genus. Following IUCN guidelines, four species are proposed as either Endangered or Critically Endangered, whereas the remaining species are considered Vulnerable and of Low Concern. Species descriptions, illustrations, distribution maps, and keys to species of the genus and related taxa of baccate Myrtaceae from New Caledonia are included.

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