Leaf anatomy and macro-morphological data support a new species of the legume genus Chamaecrista (Fabaceae, Caesalpinioideae) from Goiás, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 443 (2) ◽  
pp. 167-178
Author(s):  
RAMON GUEDES MATOS ◽  
ALESSANDRO OLIVEIRA DE SOUZA ◽  
IGOR SOARES SANTOS ◽  
MARCOS JOSÉ DA SILVA
Keyword(s):  
New Species ◽  
Leaf Anatomy ◽  
Morphological Data ◽  
Similar Species ◽  
Conservation Assessment ◽  
Environmental Preferences ◽  
Data Support ◽  
Midwest Region ◽  
Taxonomic Studies ◽  
A New Species

Analysis of Brazilian collections and foreign herbaria, specially of those from the Midwest region of Brazil for taxonomic studies on Chamaecrista sect. Absus subsect. Absus developed by the authors, resulted in a discover a new species. Chamaecrista barnebyana is here described, illustrated, and commented on its distribution, conservation assessment, including environmental preferences, flowering and fruiting, and position systematic. Additionally, it is compared with morphologically similar species using macro-morphological and foliar anatomy characteristics.

scholarly journals Taxonomic novelties in Cyclodium (Dryopteridaceae) and a key to the species with free veins

2019 ◽  
Vol 152 (3) ◽  
pp. 521-530
Author(s):  
Amabily Bohn ◽  
Fernando B. Matos ◽  
Paulo H. Labiak
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Conservation Assessment ◽  
Phylogenetic Studies ◽  
Important Region ◽  
Standard Procedures ◽  
Taxonomic Studies ◽  
A New Species

Background – Cyclodium is a neotropical fern genus comprising about ten species. Most species are found in northern South America, and the foothills of the Guiana Shield is an important region for species diversification. Our phylogenetic and taxonomic studies of the genus demonstrated the need to describe a new species and to recognize a variety at species level.Methods – This study is based on herbarium specimens from CAY, HUA, INPA, MBM, NY, P, RB, UC, UFP, UPCB, and US. Morphological characters were analyzed using standard procedures. The indumentum and spores of the new species were studied using a scanning electron microscope. Species delimitation is proposed based on our preliminary phylogenetic studies, as well as on morphology and geographical distribution.Key results – Cyclodium alansmithii Bohn & Labiak is recognized as a new species, described, and illustrated. The most similar species is Cyclodium inerme (Fée) A.R.Sm., from which it differs by ovate-lanceolate and bicolored scales, reduced fronds, truncate pinna bases, and non-ciliate indusia. Cyclodium alansmithii is currently assessed as Endangered (EN) using IUCN criteria, but more fieldwork and herbarium studies are necessary to establish a more accurate conservation assessment. Cyclodium trianae (Mett.) A.R.Sm. var. chocoense A.R.Sm. is here elevated to species rank. A key to species of Cyclodium with free veins is provided.

Novelties in Mimosa sect. Mimosa ser. Mimosa subser. Polycephalae: a new species, new status, and new synonyms

Phytotaxa ◽  
2021 ◽  
Vol 505 (2) ◽  
pp. 121-138
Author(s):  
THAINARA POLICARPO MENDES ◽  
MARCELO FRAGOMENI SIMON ◽  
ANA PAULA FORTUNA PEREZ ◽  
Marcos José da Silva
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Environmental Preferences ◽  
New Name ◽  
New Synonyms ◽  
Taxonomic Studies ◽  
A New Species

Taxonomic studies of Mimosa subser. Polycephalae revealed a new species and indicated the need for taxonomic and nomenclatural adjustments in the group. Mimosa pseudoracemosa is described and illustrated as a new species from Goiás State in central-western Brazil. We discuss its geographic distribution, environmental preferences, phenology and conservation status and compare it with the morphologically similar M. pseudoradula and M. flavocaesia. A new status for M. pseudoradula var. detonsa and a new name are proposed (= M. detonsa), including M. pseudoradula var. anapolitana and M. pseudoradula var. crystallites as its synonyms, as well an updated circumscription for M. pseudoradula without the admission of varieties. We also present descriptions, images, maps, comments on their distributions and morphological relationships, flowering and fruiting periods, and conservation statuses. In addition to the morphological and geographic discontinuities of the aforementioned taxa, their trichome micromorphology supported the establishment of the new species, as well as the taxonomic decisions involving M. pseudoradula.

Manihot montana, a new species of Manihot sect. Graciles (Euphorbiaceae) from the Brazilian savannas

Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 210
Author(s):  
MARCOS JOSÉ DA SILVA ◽  
ALESSANDRO OLIVEIRA DE SOUZA ◽  
ALEXANDRE ANTÔNIO ALONSO ◽  
HANS-JOACHIM ESSER
Keyword(s):  
New Species ◽  
Leaf Anatomy ◽  
Conservation Status ◽  
Systematic Position ◽  
Similar Species ◽  
Status Assessment ◽  
A New Species

Manihot montana, a new species of wild cassava, is described and illustrated based on material from the Brazilian savannas. We compared its macromorphology and leaf anatomy to M. paviifolia, the most morphologically similar species. In addition, we provide images of the new species, details on its distribution, conservation status assessment, phenology and comments on its ecology, morphological relationships and systematic position.

RHODODENDRON STANLEYIS.JAMES & ARGENT: A NEWRHODODENDRONSPECIES (ERICACEAE, SUBGENUSVIREYA) FROM PAPUA NEW GUINEA

2017 ◽  
Vol 74 (2) ◽  
pp. 163-168
Author(s):  
S. A. James ◽  
G. Argent
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
New Guinea ◽  
Similar Species ◽  
Central Province ◽  
Conservation Assessment ◽  
A New Species

Rhododendron stanleyiS.James & Argent is described as a new species from Mount Yule, Central Province, Papua New Guinea. Its morphological position in the subgenus is discussed and the differences given from the most closely similar species. A note on the habitat and conservation assessment is also provided.

Myrcia amplifolia (Myrtaceae), a new species from the Atlantic Forest of southern Bahia, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 450 (3) ◽  
pp. 285-292
Author(s):  
THIAGO FERNANDES ◽  
MATHEUS FORTES SANTOS ◽  
JOÃO MARCELO ALVARENGA BRAGA
Keyword(s):  
New Species ◽  
Lateral Branch ◽  
Similar Species ◽  
Coastal Forest ◽  
Distribution Map ◽  
Conservation Assessment ◽  
Leaf Venation ◽  
Eastern Brazil ◽  
Southern Bahia ◽  
A New Species

Myrcia amplifolia, a new species from the coastal forest of southern Bahia, eastern Brazil, is here described and compared with morphologically similar species. Additionally, a morphological plate, distribution map and conservation assessment of the species are presented. We assign the new species to Myrcia sect. Calyptranthes with a reasonable reliability due to the combination: presence of cataphylls, inflorescences sympodially branching at the base and calyptrate flowers. Myrcia amplifolia seems to be closely related to M. carioca, from which it can be distinguished through the leaf blades strongly coriaceous (vs. chartaceous in M. carioca), leaf venation very slightly raised and barely conspicuous abaxially (vs. venation strongly raised and conspicuous abaxially), inflorescences with a shorter main axis (75–110 mm long vs. 130–270 mm long), and shorter first lateral branch (3.3–19 mm long vs. 48–95 mm long), and the calyptra acuminate (vs. rounded or shortly apiculate). It is also similar to M. boanova, differing by the leaf blades significantly larger (31–60 × 10–20 cm vs. 7–13 × 4.1–5 cm in M. boanova) and strongly coriaceous (vs. chartaceous), and the calyptra acuminate (vs. rounded) and smaller (2.3–2.6 × ca. 1.8 mm vs. 3.5–3.7 × 3.5–4 mm).

scholarly journals Lepidozia bragginsiana, a new species from New Zealand (Marchantiopsida)

Phytotaxa ◽  
2014 ◽  
Vol 173 (2) ◽  
pp. 117 ◽  
Author(s):  
Endymion D. Cooper ◽  
Matt A. M. Renner
Keyword(s):  
New Species ◽  
New Zealand ◽  
Forest Floor ◽  
Morphological Data ◽  
Similar Species ◽  
Humid Forest ◽  
Small Leaf ◽  
A New Species ◽  
Forest Habitats ◽  
Secondary Shoot

Molecular and morphological data support the recognition of a new Lepidozia species related to L. pendulina and also endemic to New Zealand, which we dedicate to Dr John Braggins. Lepidozia bragginsiana can be distinguished from closely related and other similar species by its bipinnate branching, the narrow underleaf lobes, typically uniseriate toward their tip on both primary and secondary shoots, the asymmetric underleaves on primary shoots that are usually narrower than the stem and also possess basal spines and spurs, the production of spurs and spines, or even accessory lobes, on the postical margin of primary and secondary shoot leaves; and by the relatively small leaf cells with evenly thickened walls.  Lepidozia bragginsiana is an inhabitant of hyper-humid forest habitats where it occupies elevated microsites on the forest floor. A lectotype is proposed for L. obtusiloba.

scholarly journals Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: II. I. brevilimbum (Aristolochiaceae), a new species from Guizhou, China

PhytoKeys ◽  
2020 ◽  
Vol 152 ◽  
pp. 15-25
Author(s):  
Jun Wang ◽  
Ji-Dong Ya ◽  
Cheng Liu ◽  
Guang Liu ◽  
Feng Cao ◽  
...  
Keyword(s):  
New Species ◽  
Similar Species ◽  
Line Drawings ◽  
Taxonomic Studies ◽  
A New Species

A new species of Isotrema was recently discovered from Guizhou, China and is here named as I. brevilimbum. It is most similar to I. ovatifolium and I. wardianum, but differs in the morphology of leaves and flowers. A detailed description for the new species, along with line drawings, photographs, as well as morphological comparisons with similar species, are provided. In addition, the distribution of I. wardianum in China is here confirmed.

scholarly journals Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: I. I. cangshanense, a new species from Yunnan

PhytoKeys ◽  
2019 ◽  
Vol 134 ◽  
pp. 115-124 ◽  
Author(s):  
Xin Xin Zhu ◽  
Hai Lei Zheng ◽  
Jun Wang ◽  
Yong Qian Gao ◽  
Jin Shuang Ma
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
New Taxon ◽  
Line Drawings ◽  
Western Yunnan ◽  
Iucn Red List Criteria ◽  
Taxonomic Studies ◽  
A New Species

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.

Gravesia serratifolia (Melastomataceae: Sonerileae), a new species from Marojejy National Park, Madagascar

Phytotaxa ◽  
2019 ◽  
Vol 391 (2) ◽  
pp. 115
Author(s):  
FRANK ALMEDA ◽  
HERITIANA RANARIVELO
Keyword(s):  
New Species ◽  
National Park ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Gravesia serratifolia, a new species from upper elevations of Marojejy National Park in northeastern Madagascar, is herein described, illustrated, mapped, and compared with similar species. It is readily characterized by its sparingly branched habit, leaf blades coarsely serrate with a moderate to sparse lepidote indumentum on both surfaces, inflorescence of few-flowered dichasia, calyx obsolete or evident as depressed truncate undulations with prominent calyx teeth that are laterally compressed when fresh, filaments with rusty-brown glandlike indumentum, and dorso-basal staminal appendages linear-oblong and widely spreading to coiled. A conservation assessment of Vulnerable is recommended for this species based on IUCN Red List Categories and Criteria.

Pseudochirita trifoliata (Gesneriaceae), a new species from karst limestone in northern Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 489 (2) ◽  
pp. 182-190
Author(s):  
TRUONG VAN DO ◽  
MAI THI HOANG ◽  
ZI-BING XIN ◽  
YI-GANG WEI ◽  
DE-CHANG MENG ◽  
...  
Keyword(s):  
New Species ◽  
Southern China ◽  
Mountain Range ◽  
Similar Species ◽  
New Taxon ◽  
Conservation Assessment ◽  
Endemic Genus ◽  
Northern Vietnam ◽  
Pistil Length ◽  
A New Species

Pseudochirita trifoliata, a new Gesneriaceae species from Pu Luong-Cuc Phuong limestone mountain range in northern Vietnam is described and illustrated here. This new taxon is the second species of the narrowly endemic genus Pseudochirita which is known from limestone areas in southern China and northern Vietnam. It is easily distinguished from P. guangxiensis by a set of differences on the leaves, bracts, calyx, external corolla indumentum, staminode number, pistil length, ovary indumentum, style indumentum, and capsule length. A detailed description, illustration, information on distribution, ecology, phenology, provisional conservation assessment using IUCN categories and criteria of the proposed new species, and comparison with its similar species, are also provided.

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