Neomarica castaneomaculata and N. involuta (Iridaceae): two new endemic species from the Atlantic Forest, Brazil

Phytotaxa ◽  
2016 ◽  
Vol 286 (2) ◽  
pp. 89 ◽  
Author(s):  
PÂMELA NOVAIS DE OLIVEIRA ◽  
ANDRÉ DOS SANTOS BRAGANÇA GIL ◽  
ANA MARIA GIULIETTI ◽  
REYJANE PATRÍCIA DE OLIVEIRA ◽  
MARIA DO CARMO ESTANISLAU DO AMARAL

Based on field studies, herbarium specimens and cultivated plants, two new species of Neomarica, collected in the states of Bahia, Espírito Santo, Rio de Janeiro and Minas Gerais, are described. Neomarica castaneomaculata differs from all other known species of the genus by the presence of a conspicuous triangular chestnut colored spot at the apex of the inner tepals, as well as a combination of other vegetative and floral characters. Neomarica involuta can be distinguished from other species by the conspicuously involute apical inner tepals margins. Illustrations, distribution maps and a commentary on morphology, taxonomic relationships and the conservation status of the new species are also provided.

Phytotaxa ◽  
2014 ◽  
Vol 184 (4) ◽  
pp. 223 ◽  
Author(s):  
Lidyanne Yuriko Saleme Aona ◽  
VOLKER BITTRICH ◽  
Maria DO CARMO E. AMARAL

Two new species of Dichorisandra collected  in Rio de Janeiro state are described based on studies in the field, herbarium specimens and cultivated plants. Dichorisandra odorata can be distinguished by its small stature, leaves congested at the apex of the stems, with the lamina densely pilose on both sides, fragrant flowers (unusual for the genus), six anthers with pilose connectives and dehiscent by an apical pore; Dichorisandra nana resembles D. thyrsiflora by the presence of six yellow anthers dehiscent by apical pores, however it differs being smaller, reaching only 30 cm tall, and by the position of the stamens in relation to the petals. Illustrations of the species, comparisons with species looking morphologically similar, discussion of the diagnostic characters, as well as their conservation status are presented. Vellozo´s Flora Fluminensis includes two names that belong to Dichorisandra, both treated under the genus Convallaria. The first one, C. diffusa, is a synonym of D. hexandra while the other, thought by Vellozo to be C. racemosa (= Maianthemum racemosum), is in fact D. thyrsiflora.


Phytotaxa ◽  
2015 ◽  
Vol 208 (3) ◽  
pp. 201
Author(s):  
JAIR EUSTÁQUIO QUINTINO DE FARIA ◽  
FIORELLA FERNANDA MAZINE ◽  
CAROLYN ELINORE BARNES PROENÇA

Two apparently narrow-endemic species of Eugenia are described from the Cabo Frio Center of Plant Diversity in the state of Rio de Janeiro, Brazil. Both present a limited distribution restricted to coastal areas north of Rio de Janeiro. The new species are described and compared with closely related species.  Illustrations, distribution maps and conservation status assessments are also provided. Eugenia gastropogena and Eugenia farneyi are presumably closely related to Eugenia pyriformis and Eugenia malacantha. Eugenia gastropogena can be recognized by its leaves with arched secondary veins not forming a clear marginal vein, subcordate to obtuse leaf bases, petioles 2.1–4.8 mm long, buds 3.5–4 mm long and 2 ovules per locule. E. farneyi can be recognized by having leaves with straight secondary veins that form a single marginal vein running 0.7–1.5 mm from the margin, cuneate leaf bases, petioles 4–6.4 mm long, buds 6.2–8.4 mm long, and 10–12 ovules per locule.


Phytotaxa ◽  
2016 ◽  
Vol 284 (4) ◽  
pp. 263 ◽  
Author(s):  
LUIZ HENRIQUE M. FONSECA ◽  
ALEXANDRE R. ZUNTINI ◽  
LÚCIA G. LOHMANN

Adenocalymma, with approximately 75 species, is one of the largest genera from tribe Bignonieae (Bignoniaceae). The genus mostly includes yellow-flowered lianas and shrubs that are conspicuous components of the dry and wet Neotropical forests. As part of an ongoing taxonomic and phylogenetic study of this group, we found unusual materials that do not match any of the currently recognized taxa. These materials formed the basis of two new species described here, which are endemic from the Brazilian Atlantic forest: Adenocalymma lineare, and Adenocalymma apetiolatum. Adenocalymma lineare resembles Adenocalymma nervosum on the linear leaflets, but differs in the habit, prophyll morphology, leaflet venation, floral bracts, bracteole morphology and dimensions, corolla color and morphology, anther and stigma position. While Adenocalymma apetiolatum closely resembles Adenocalymma sessile and Adenocalymma subsessilifolium on the sessile leaf insertion and shrubby habit, it differs from both species by the corolla color, indument type and color. Apart from that, Adenocalymma apetiolatum differs from the former by the prophyll morphology, floral bract and bracteole morphology, and the latter by the corolla morphology. These two new taxa are illustrated, and distribution maps are provided here. Notes on the taxonomy, geographic distribution, habitat, and conservation status are also included.


Author(s):  
Petra De Block

Homollea Arènes (Rubiaceae, subfamily Ixoroideae, tribe Pavetteae) is a genus of shrubs and small trees endemic to western and northern Madagascar. The genus comprises five species occurring in dry deciduous forest, often in limestone areas. The five species are narrow endemics and their conservation status is either Endangered (4 species) or Critically Endangered (1 species). Homollea is characterized by few-flowered, pseudo-axillary, pedunculate inflorescences, well-developed calyces with the lobes much longer than the tube, laterally flattened seeds with a shallow, elongated to linear hilum and entire endosperm, ovules arising from the upper margin of the placenta, and, pollen grains with supratectal elements in the shape of microgemmae. Until now, three species were known and their descriptions are amended. Two further species, H. furtiva De Block sp. nov. and H. septentrionalis De Block sp. nov., are described as new for science. The five species are dealt with in detail: descriptions, distribution maps, conservation assessments, illustrations, lists of exsiccatae and an identification key are given.


Author(s):  
Neil Cumberlidge ◽  
Paul F. Clark

Two new species of potamonautid freshwater crabs are described from the Imatong Mountains and Mount Moroto in northern Uganda, East Africa, and a third highland species, Potamonautes amalerensis (Rathbun, 1935) stat. rev. from Mount Kadam is re-diagnosed based on examination of the holotype. All three species are endemic to a different mountain range and their collection localities indicate a distinct preference for higher altitudes. Diagnoses, illustrations and distribution maps are provided for these taxa, and they are compared to similar species from the region. The conservation status of all three species is discussed.


Phytotaxa ◽  
2017 ◽  
Vol 319 (2) ◽  
pp. 159
Author(s):  
JAIR E. Q. FARIA ◽  
EVE J. LUCAS ◽  
MARCOS SOBRAL

Two new species of Myrcia from the Brazilian Cerrado are described: Myrcia occulta and Myrcia matogrossensis. Notes on species morphology, phenology and conservation status are provided as well as illustrative plates and distribution maps.


Phytotaxa ◽  
2015 ◽  
Vol 203 (3) ◽  
pp. 263
Author(s):  
Bonaventure Sonké ◽  
Ehoarn Bidault ◽  
Vincent Droissart

Based on a careful examination of more than 700 herbarium specimens and field investigation, a comprehensive revision of the genus Massularia is given. Massularia stevartiana, a new species from Central African Republic, Cameroon and Gabon is described and illustrated. The novelty is distinguished from M. acuminata, the only other species previously recognized in the genus, by its smaller leaves and flowers. For the two species recognized we provide a morphological description, distribution, habitat, phenology and IUCN conservation status assessment. Distribution maps and a dichotomous key are also provided.Based on a careful examination of more than 700 herbarium specimens and field investigation, a comprehensive revision of the genus Massularia is given. Massularia stevartiana, a new Rubiaceae species from Central African Republic, Cameroon and Gabon is described and illustrated. The novelty is distinguished from M. acuminata, the only other species recognized within the genus, by its smaller leaves and flowers. Another typical character for M. stevartiana is its leaves always cunate. For the two recognized taxa we provide a morphological description, distribution, habitat, phenology and IUCN conservation status assessment. Distribution maps and a taxonomic key are also provided.


Phytotaxa ◽  
2017 ◽  
Vol 329 (2) ◽  
pp. 101
Author(s):  
TIM BÖHNERT ◽  
MAXIMILIAN WEIGEND

An updated checklist and key to the Peruvian species of Brunellia (Brunelliaceae) is presented based on georeferenced herbarium specimens from Peruvian herbaria, own field collections and online sources. Thirteen Brunellia species are documented as native to Peru, including nine endemic species. Compared to previous studies the average number of Brunellia spp. per Andean department doubles from two to more than four species. Our data indicate a center of species richness and endemism in northern Peru, namely the Amotape-Huancabamba Zone (AHZ). Furthermore, distribution maps for all species are presented. Brunellia ovalifolia is reported as a new record for Peru. Another species, B. lobinii Böhnert & Weigend sp. nov., from Departamento de Lambayeque, Provincia de Ferreñafe, near the town of Kañaris, is here described as new to science. Additionally, some taxonomic uncertainties are discussed.


PhytoKeys ◽  
2018 ◽  
Vol 111 ◽  
pp. 17-30 ◽  
Author(s):  
Suzanne Mogue Kamga ◽  
Raoul Niangadouma ◽  
Fred W. Stauffer ◽  
Bonaventure Sonké ◽  
Thomas L.P. Couvreur

Raphia (Arecaceae, Calamoideae) is the most diverse genus of African palms with around 20 species. Two new species from Cameroon and Gabon, Raphiagabonica Mogue, Sonké & Couvreur, sp. nov. and Raphiazamiana Mogue, Sonké & Couvreur, sp. nov. are described and illustrated. Their affinities are discussed and the conservation status of each species is assessed. For both species, distribution maps are provided. Raphiagabonica is restricted to two small populations from central Gabon, where it occurs on hillsides on tierra firme soil, and close to small streams. Its preliminary IUCN status is Endangered, being amongst the five most threatened palm species in Africa. Raphiagabonica potentially belongs to the moniliform section. Raphiazamiana is largely distributed from south Cameroon to south Gabon and is very common. It is also a multi-used palm, from which wine, grubs and construction material are extracted and sold. It generally occurs in large stands in a wide range of ecosystems such as swamps, coastal forests on partially inundated sandy soils and inundated savannahs. Its large stature, hard to access habitat (swamps) and abundant presence might have discouraged botanists to collect it until now. Raphiazamiana belongs to the taxonomically complex raphiate section.


Phytotaxa ◽  
2020 ◽  
Vol 438 (1) ◽  
pp. 6-14
Author(s):  
KHANYISILE SHABANGU ◽  
STOFFEL P. BESTER ◽  
MICHELLE VAN DER BANK

Sisyranthus species are cryptic in both their habit and small size of their flowers making them difficult to find in the wild. The genus was last revised in Flora Capensis (1908) and since then, two new species have been described. Currently it comprises 13 recognised species endemic to southern Africa. Many of these are range-restricted and poorly known. In this contribution the genus is further expanded by describing two novel species. Full descriptions, assessment of conservation status, distribution maps and line drawings of the new taxa are presented.


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