Two new and threatened Eugenia (Myrtaceae) species from the Atlantic Forest of Espírito Santo, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 468 (2) ◽  
pp. 203-213
Author(s):  
KARINNE SAMPAIO VALDEMARIN ◽  
VINICIUS CASTRO SOUZA ◽  
FIORELLA F. MAZINE

During our studies on Eugenia of Espírito Santo state, Brazil, two new species came out of our attention being here described, illustrated and compared morphologically with their similar species. Eugenia mestrealvarensis can be easily recognised by its clusters of fascicules on trunk with pedicellate flowers, an unusual feature among the species of the genus, and E. penduliflora by its two-flowered raceme with later vegetative proliferation with pendular pedicels. Both species are evaluated as critically endangered following IUCN red list criteria, being E. mestrealvarensis restricted to the Área de Proteção Ambiental Estadual de Mestre Álvaro, and E. penduliflora to the Reserva Natural Vale, in Espírito Santo state.

Phytotaxa ◽  
2014 ◽  
Vol 166 (1) ◽  
pp. 77 ◽  
Author(s):  
CLAUDIO NICOLETTI DE FRAGA ◽  
PAULO JOSÉ FERNANDES GUIMARÃES

Pleroma marinana and P. penduliflora, two new species of Pleroma (Melastomataceae) from the dry seasonal Atlantic forest of Espírito Santo, Brazil, are described and illustrated, with their affinities and diagnostic characters discussed. Pleroma marinana is similar to Tibouchina radula and T. oreophila while Pleroma penduliflora is similar to Pleroma heteromalla, Tibouchina bahiensis and T. formosa. According to the criteria of the IUCN Red List, T. marinana must be included in the vulnerable and T. penduliflora in the endangered category.


Phytotaxa ◽  
2014 ◽  
Vol 163 (2) ◽  
pp. 113 ◽  
Author(s):  
Augusto Giaretta ◽  
Claudio Nicoletti de Fraga

Two new species of Eugenia (Myrtaceae), endemic to the Atlantic forest in the state of Espírito Santo, Brazil, are described. Eugenia amorimii has fruits with brown mealy indumentum and is similar to E. multicostata, while Eugenia sobraliana has a characteristic pedicels exfoliating longitudinally after anthesis and is similar to E. sessiliflora. The new species are restricted to single localities in the central and northwestern regions of Espírito Santo. According to the criteria of the IUCN Red List of endangered plant species both species should be considered as “Vulnerable”.


Phytotaxa ◽  
2019 ◽  
Vol 400 (5) ◽  
pp. 273
Author(s):  
PEDRO HENRIQUE CARDOSO ◽  
LUIZ MENINI NETO ◽  
FÁTIMA REGINA GONÇALVES SALIMENA

Stachytarpheta tomentosa from the state of Espírito Santo, Brazil, is described and illustrated. Currently it is known only from a single inselberg in the Atlantic Forest, at approximately 900 m.a.s.l., and is considered Critically Endangered in accordance with the criteria of the IUCN Red List of endangered species. The new species is characterized by tomentose branches; lanceolate leaves with tomentose abaxial surface; tomentose bracts; calyx 4-toothed with 1 adaxial sinus, externally hirsute along the ribs, puberulent between the ribs; and blue corolla with white throat. It belongs to the informal group “Gesnerioides”. An identification key for the species of this group is provided, alongside description, map and illustrations.


Rodriguésia ◽  
2018 ◽  
Vol 69 (2) ◽  
pp. 595-610 ◽  
Author(s):  
Marcelo Monge ◽  
Danilo Poso Volet ◽  
João Semir

Abstract Espírito Santo is a hotspot of diversity in the Atlantic Forest in Brazil, where five new species of Vernonieae from the genera Cololobus, Lepidaploa, Lessingianthus, Piptocarpha, and Vernonanthura were found, and four of them occur in the municipality of Santa Teresa. These discoveries show that current knowledge on biodiversity in Espírito Santo is incipient, even in sites with decades of biological inventories, such as Santa Teresa. Here, all five species are described with comments about distribution, conservations status, phenology and taxonomic affinities. We also provide illustrations and a distribution map of the new species. According to the criteria of IUCN red list, Cololobus argenteus and Vernonanthura spathulata must be included in endangered (EN) category.


Phytotaxa ◽  
2019 ◽  
Vol 415 (1) ◽  
pp. 65-72
Author(s):  
CÁSSIO A.P. TOLEDO ◽  
VINICIUS CASTRO SOUZA ◽  
EVE J. LUCAS

Two new species of Connarus are here described and illustrated: C. aureus and C. tomentosus. These taxa are until now known only to the Atlantic Forest in Southeastern Brazil. Diagnostic characteristics of the new species and an identification key of Connarus from Bahia and Espírito Santo states are provided, along with information on their habitat and ecology.


Phytotaxa ◽  
2020 ◽  
Vol 461 (3) ◽  
pp. 185-194
Author(s):  
MARCO CEDEÑO-FONSECA ◽  
THOMAS B. CROAT ◽  
ALEJANDRO ZULUAGA ◽  
MICHAEL MITTERMEIER ◽  
MARIO A. BLANCO

Two species of Monstera, apparently endemic to Costa Rica, are newly described and illustrated. Monstera juliusii occurs in the southern Costa Rican portion of the Cordillera de Talamanca at 1600–2250 m, and has been confused with M. standleyana in herbaria. Monstera monteverdensis occurs in the Guanacaste and Tilarán cordilleras, and the northwestern part of the Cordillera Central, at 500–2300 m, and has been confused with M. epipremnoides, M. lentii and M. lechleriana in herbaria. Phenology and suggested conservation categories according to the IUCN Red List criteria are indicated for both new taxa.


Phytotaxa ◽  
2015 ◽  
Vol 192 (4) ◽  
pp. 290 ◽  
Author(s):  
Cleusa Vogel Ely ◽  
Ilsi Iob Boldrini ◽  
Sérgio Augusto de Loreto Bordignon

In this article we describe and illustrate Hypericum austrobrasiliense, a new species endemic to the grasslands of the Brazilian Atlantic Forest biome and restricted to Southern Brazil. This distinctive species is classified as Endangered based on IUCN Red List criteria.


PhytoKeys ◽  
2019 ◽  
Vol 134 ◽  
pp. 115-124 ◽  
Author(s):  
Xin Xin Zhu ◽  
Hai Lei Zheng ◽  
Jun Wang ◽  
Yong Qian Gao ◽  
Jin Shuang Ma

Isotrema cangshanense X.X.Zhu, H.L.Zheng & J.S.Ma, a new species from western Yunnan, China, is described and illustrated here. It is similar to I. utriforme, I. forrestianum, I. cucurbitoides and I. obliquum The major differences between them are outlined and discussed. A detailed description, along with line drawings, photographs, habitat and distribution, as well as a comparison to morphologically similar species, is also provided. Meanwhile, the new taxon is assessed as Vulnerable (VU D2), according to the IUCN Red List criteria.


PhytoKeys ◽  
2019 ◽  
Vol 131 ◽  
pp. 57-67
Author(s):  
Jovani B. de S. Pereira ◽  
José Tasso F. Guimaraes ◽  
Maurício T. C. Watanabe

Isoetes dubsiisp. nov. and I. santacruzensissp. nov., two new species from lowland areas in South America, are described, illustrated and compared to similar species. Isoetes dubsii can be distinguished from other species of the Brazilian Pantanal wetlands by a set of characters including leaves that are long, flexuous and trigonal in transverse section, tri-lobate stems, rudimentary velum, pustulate megaspores of 310‒390 µm diameter and laesurae of the megaspore at least four times wider than high. Isoetes santacruzensis has flexuous, filiform leaves, 0.4–0.8 mm wide at mid length and reaching up to 15 cm long, black or reddish-black sporangia, sclerified phyllopodia and sparsely verrucate megaspores of 320‒390 µm in diameter. We also include a key for species from the Brazilian Pantanal wetlands and Bolivia and spore images for all species that are discussed. Isoetes dubsii and I. santacruzensis are only known from their type localities and they may deserve special attention concerning their conservation status. However, based on our current knowledge on these species and according to IUCN Red List criteria, they are assessed here as data deficient (DD).


2021 ◽  
Vol 46 (4) ◽  
pp. 1114-1120
Author(s):  
Marcelo Monge ◽  
André Paviotti Fontana ◽  
Claudio Nicoletti de Fraga ◽  
Ludovic Jean Charles Kollmann ◽  
Jimi Naoki Nakajima

Abstract— The Atlantic Forest is the most species rich vegetation in Brazil and holds several phytophysiognomies, including the vegetation on inselbergs, which is a very stressful xeric environment that selects for very specialized biota. Cololobus is an endemic genus from Atlantic Forest inselbergs of eastern Brazil, and Cololobus ruschianus is a new species based on morphological evidence, differing from other species of the genus by its morphological traits in petioles, subinvolucral bracts, and outer involucral bracts. Cololobus ruschianus occurs in Santa Teresa, Espírito Santo State, Brazil and would likely be considered Critically Endangered (CR), based on the criteria of the IUCN red list.


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