A New Species of Turnera (Turneraceae, Passifloraceae s. l.) from the Brazilian Cerrado

2020 ◽  
Vol 45 (4) ◽  
pp. 826-832
Author(s):  
Lamarck Rocha ◽  
Maria Mercedes Arbo

Abstract—Turnera macrosperma, a new species from the Brazilian Cerrado, is described and illustrated. The new species belongs to the series Turnera and can be characterized by the white petals with dark blue/violet basal spot and large seeds with papillose aril. SEM images, distribution map, and comments on taxonomy and morphology are presented.

2019 ◽  
Vol 44 (4) ◽  
pp. 826-831
Author(s):  
Juan F. Carrión ◽  
Inês Cordeiro ◽  
André M. Amorim

Abstract—A new species of Bernardia with stellate trichomes from the Brazilian Cerrado is described and illustrated. Bernardia allemii is most similar to B. gardneri, but differs by its multi-stemmed, subshrub habit, broader leaf blades, tomentose old branches, staminate bracteoles that are usually reniform to flabellate, and larger sepals and bracts in the pistillate flowers. Photographs, a distribution map, information about the conservation status of the new species, and a key to the species with stellate trichomes in Brazil are also provided.


PhytoKeys ◽  
2020 ◽  
Vol 151 ◽  
pp. 93-106
Author(s):  
Diego Santos ◽  
Raysa Valéria Carvalho Saraiva ◽  
Tiago Massi Ferraz ◽  
Emília Cristina Pereira Arruda ◽  
Maria Teresa Buril

A new species of Ipomoea, endemic to the Cerrado domain in Maranhão, Brazil, is described. Ipomoea maranhensis D.Santos & Buril, sp. nov. has been misidentified as I. burchellii Meisn. in several herbaria. Even though both species have oblong, pubescent leaves, they can be distinguished by morpho-anatomical characters. We present a diagnosis, complete description, illustration, taxonomic comments, conservation status and distribution map.


Phytotaxa ◽  
2018 ◽  
Vol 383 (1) ◽  
pp. 48
Author(s):  
HAN-FENG XU ◽  
ZHONG-HUI MA

Stellaria abaensis sp. nov., from Sichuan Province (southwest China), is described and illustrated. It is similar to S. media, and S. reticulivena (Subsect. Stellaria) but can be distinguished from them by its longer petiole, terete stem, glabrous pedicel, and undulate tuberculate seeds. Original photographs, distribution map, SEM images of pollen grain, and a comparative morpological table, as well as an identification key for the related taxa are provided.


Phytotaxa ◽  
2019 ◽  
Vol 413 (1) ◽  
pp. 61-66
Author(s):  
PEDRO HENRIQUE CARDOSO ◽  
LUIZ MENINI NETO ◽  
FÁTIMA REGINA GONÇALVES SALIMENA

Stachytarpheta grandiflora, an endemic species to campos rupestres of the Parque Nacional da Serra da Canastra, west of Minas Gerais, Brazil, is described and illustrated. The new species is characterized by pubescent branches, leaves with acute apex, petiole 0.5–1 cm long, bracts 0.7–1 cm long, with caudate apex, calyx 1.5–1.6 cm long, pubescent, 2-toothed and corolla 2.3–3 cm long, dark blue. It belongs to the informal group “Sellowiana”. We provide a detailed diagnosis, a morphological comparison with the most similar species, a key for the informal group where the new species belongs, a distribution map, conservation status and illustrations.


2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.


2020 ◽  
Vol 45 (4) ◽  
pp. 833-838
Author(s):  
Lamarck Rocha ◽  
Patrícia Luz Ribeiro ◽  
Maria Mercedes Arbo

Abstract—We present a new species, Turnera fasciculifolia, from the Jalapão region, the largest continuous protected area of Cerrado in Tocantins State, in central Brazil. The new species belongs to Turnera series Leiocarpae, and it can be recognized by the linear ericoid leaves with revolute margin, generally without extrafloral nectaries, and the basal leaves of the young axillary branches gathered in fascicles. We provide a description, illustrations, a distribution map, and a comparison with T. genistoides and T. revoluta, which also have ericoid leaves.


2017 ◽  
Vol 51 ◽  
pp. 274-280
Author(s):  
A. D. Potemkin ◽  
Yu. S. Mamontov ◽  
N. S. Gamova

Study of selected specimens of Gymnomitrion collected by D. G. Long in Yunnan, China, revealed a new species, G. fissum Mamontov et Potemkin, sp. nov., with a fissured leaf surface. Comparison of SEM images of the leaf surface and leaf cross sections shows that the leaf surface of G. fissum is different from that of other known species with a superficially similar leaf surface, i. e. Mylia taylorii, M. verrucosa s. l. and Trabacellula tumidula. It has fissures around the cell lumen rather than grids and perforations. Outer cell walls of Gymnomitrion fissum are much thicker than in Mylia taylorii, M. verrucosa s. l. and Trabacellula tumidula, and their outer layers tend to be partly or completely caducous. G. fissum is related to the group of species assigned to the former genus Apomarsupella.


2020 ◽  
Vol 191 ◽  
pp. 20
Author(s):  
Cédric Chény ◽  
Elvis Guillam ◽  
André Nel ◽  
Vincent Perrichot

Embolemidae is a cosmopolitan but species-poor group of chrysidoid wasps with a scarce fossil record, despite a long evolutionary history since at least the Early Cretaceous. Here, the new species, Ampulicomorpha quesnoyensis sp. nov., is illustrated and described based on a single female found in Early Eocene amber of Oise (France). The new species is compared with the three other known fossil species of the genus, and a key to all fossil species of Ampulicomorpha is provided. This is the third European fossil species of Ampulicomorpha, which suggests that the genus was once well established in Western Europe while it is more widely distributed in the Eastern Palaearctic region today. A list of all fossil and extant Embolemidae of the world, as well as a map of their geographical distribution map, are provided.


Phytotaxa ◽  
2016 ◽  
Vol 286 (1) ◽  
pp. 13
Author(s):  
VANESSA ROJAS-PIÑA ◽  
LEONARDO O. ALVARADO-CÁRDENAS

Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the pedicel below the flower. With this new addition, the total number of endemic species of Beaucarnea for Mexico increases to 10, making this country the greatest center of diversification and endemism for the genus. We also provide a distribution map and a conservation status recommendation for the new species, as well as a key to the Beaucarnea species of southern central Mexico.


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