Two new species of Eugenia (Myrtaceae) from the Cabo Frio Center of Plant Diversity, Rio de Janeiro, Brazil

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.


Phytotaxa ◽  
2020 ◽  
Vol 442 (3) ◽  
pp. 205-214
Author(s):  
MARCELO MONGE ◽  
MARIANA MACHADO SAAVEDRA

Trixis salina is a new endemic species from restinga vegetation of the Center of Plant Diversity of Cabo Frio region in Rio de Janeiro state, southeastern Brazil. It grows in rocky ravines, rocky shores, and in shrubby restinga. The new species is morphologically similar to Trixis antimenorhoea; however, they differ in habit, branches, trichomes, leaf morphology, involucral bracts, and number of flowers per head. The preliminary conservation status assessment shows that Trixis salina must be included in Endangered (EN) category.


2004 ◽  
Vol 61 (1) ◽  
pp. 31-39
Author(s):  
T. KUROSAWA

Two new species of Euphorbiaceae (sensu stricto), Mallotus bicarpellatus (Acalyphoideae) and Croton nepalensis (Crotonoideae), are described from Nepal. Mallotus bicarpellatus is closely related to M. philippensis but differs in having 1 or 2 pairs of leaf glands distinctly separated from the petiole attachment, pistillate flowers with staminodes and longer pedicels, and fewer locules and stigmas. Croton nepalensis differs from C. tiglium in having leaves with truncate, subcordate or rounded base, smaller, broadly ovoid capsules, and smaller seeds. A table is provided showing how Croton nepalensis differs from other closely related species. Croton himalaicus is here regarded as a synonym of C. tiglium, though it has been treated variously as a distinct species or a synonym of C. tiglium or C. birmanicus by recent authors. Distribution maps and graphs of altitudinal distribution are given for the new species.


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 217 (1) ◽  
pp. 96 ◽  
Author(s):  
ÖMER ÇEÇEN ◽  
FAİK AHMET KARAVELİOĞULLARI ◽  
AYVAZ ÜNAL

Verbascum misirdalianum (Scrophulariaceae) is described and illustrated as a new species endemic to central Anatolia, Turkey. In this study, diagnostic morphological characters of this new species and closely related species (V. tossiense) are discussed. Furthermore, comments on habitat, morphology and conservation status are provided and distribution maps presented for the two taxa.


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.


Rodriguésia ◽  
2011 ◽  
Vol 62 (2) ◽  
pp. 315-320 ◽  
Author(s):  
Lívia Godinho Temponi ◽  
Marcus A. Nadruz Coelho

Abstract Two new species of Anthurium are described for Brazil, Anthurium cipoense Temponi endemic of the Serra do Cipó National Park, Minas Gerais and Anthurium polynervium Temponi & Nadruz, endemic to municipality of Santa Maria Madalena, Rio de Janeiro state. Both have restricted distributions and studies on their conservation are needed. Descriptions, illustrations and commentaries on geographic distribution, ecology, phenology and conservation status are provided for both species.


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