Aristolochia luudamcui (Aristolochiaceae), a new species from northern Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 527 (1) ◽  
pp. 67-74
Author(s):  
LONG KE PHAN ◽  
STEFAN WANKE ◽  
CHRISTOPH NEINHUIS ◽  
TRUONG VAN DO
Keyword(s):  
New Species ◽  
Conservation Status ◽  
The Other ◽  
Similar Species ◽  
Leaf Lamina ◽  
Northern Vietnam ◽  
Inner Surface ◽  
A New Species

Aristolochia luudamcui (Aristolochia subgen. Siphisia, Aristolochiaceae), a new species from Vietnam, previously misidentified as A. utriformis, is described and illustrated here. The new species is most similar to A. pseudoutriformis and A. utriformis concerning the morphology of the leaf lamina, the color of the perianth, and the shape of the limb, but A. luudamcui can be distinguished from the other two species by having a deeply 3-lobed limb and a glabrous, yellow inner surface of limb lobes. A detailed description, information on ecology, phenology, distribution, usage, a provisional assessment of the conservation status of the new species, and a comparison with morphologically similar species are provided as well.

Ophioglossum gujaratense, a new species from Gujarat State, India

Phytotaxa ◽  
2018 ◽  
Vol 351 (4) ◽  
pp. 273 ◽  
Author(s):  
SACHIN M. PATIL ◽  
RONAK N. KACHHIYAPATEL ◽  
RAVI S. PATEL ◽  
KISHORE S. RAJPUT
Keyword(s):  
New Species ◽  
Chloroplast Genome ◽  
Molecular Data ◽  
The Other ◽  
Similar Species ◽  
New Taxon ◽  
Leaf Lamina ◽  
Leaf Base ◽  
Gujarat State ◽  
A New Species

A new species, Ophioglossum gujaratense, is described from Gujarat state (India). It resembles O. polyphyllum in the presence of sheathing rhizomorph and 1–4 (rarely 5) trophophylls. On the other hand, rhizomorph morphology, common stalk, trophophyll arrangement, leaf lamina and leaf base make it distinct from O. polyphyllum. Stoloniferous roots, trophophyll number and their arrangement of the new species also resemble O. parvifolium and O. nudicaule. However, both these species lack a sheath around the leaf-stem base. A comparative account of morphologically similar species, viz. O. gujaratense, O. polyphyllum, O. parvifolium and O. nudicaule is provided. The distinctness of the new taxon has been confirmed using molecular data from chloroplast genome markers viz rbcL, trnH-psbA, trnF-trnE and trnL-trnF.

A new Critically Endangered species of stone breaker (Phyllanthus, Phyllanthaceae) from Central Brazil, with notes on its leaf and stem anatomy

Phytotaxa ◽  
2022 ◽  
Vol 530 (1) ◽  
pp. 53-64
Author(s):  
MARCOS JOSÉ DA SILVA ◽  
ALEXANDRE ANTÔNIO ALONSO ◽  
IGOR SOARES DOS SANTOS
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Systematic Position ◽  
The Other ◽  
Similar Species ◽  
Stem Anatomy ◽  
Environmental Preferences ◽  
Central Brazil ◽  
Critically Endangered Species ◽  
A New Species

A new species from the state of Goiás, Brazil, Phyllanthus pterocaulis, is described and illustrated, with comments on its geographic distribution and environmental preferences, phenology, morphological relationships, and systematic position. It is morphologically allied with Phyllanthus avicularis, P. heliotropus, and P. hyssopifolioides, but differs from all of them by a set of characters related to cymules sex, presence and types of trichomes on leaves and stems, leaf consistency, numbers of sepals in flower of both sexes, integrity of stamens, capsules and seeds. Additionally, we provide images of the new species in the field, conservation status, mapped distribution, the anatomical description of its stem and leaves, and a key to differentiate it from the other similar species belonging to Phyllanthus sect. Loxopodium occurring in Brazil. The new species is one of the few in the genus that occurs in shaded environments in seasonal dry forests within the Cerrado biome.

A new species of Aristolochia subgenus Siphisia (Aristolochiaceae) from central Vietnam

Phytotaxa ◽  
2015 ◽  
Vol 220 (1) ◽  
pp. 69 ◽  
Author(s):  
Truong Van Do ◽  
Christoph Neinhuis ◽  
Stefan Wanke
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Similar Species ◽  
Leaf Base ◽  
Line Drawings ◽  
Central Vietnam ◽  
Inner Surface ◽  
A New Species

Aristolochia annamensis, a new species from central Vietnam, is described and illustrated. This new species, belonging to Aristolochia subgenus Siphisia, is characterized by a truncate to slightly cordate leaf base, a strongly constricted, a straight, oblong, cylindrically-shaped upper tube without veins, 3–3.2 cm long, limb subcordate with margin of three lobes somewhat recurved, but not revolute, inner surface of limb smooth, annulus absent, throat densely covered with purple dots. In addition to the description, line drawings, ecology, conservation status as well as comparison with morphologically similar species are provided.

A new species of Mandevilla (Apocynaceae; Apocynoideae) from Mexico

Phytotaxa ◽  
2017 ◽  
Vol 319 (1) ◽  
pp. 93
Author(s):  
LEONARDO O. ALVARADO-CÁRDENAS ◽  
LUCIO LOZADA-PÉREZ
Keyword(s):  
New Species ◽  
Central America ◽  
Conservation Status ◽  
The Other ◽  
Similar Species ◽  
Distribution Map ◽  
A New Species

We describe and illustrate a new species of Mandevilla for the states of Oaxaca and Veracruz, Mexico. Mandevilla sherlockii sp. nov. can be separated from the other similar species of the genus by its subcoriaceous leaf blades and inflorescences with a conspicuously curved rachis between each flower. Including this new species, Mexico is a hotspot for the genus with a 24 species, 11 of which are endemic. We provide a distribution map, suggest a conservation status for the new species, and provide a key for the species of Mandevilla found in Mexico and Central America.

Aristolochia vuquangensis (Aristolochiaceae), a new species from Central Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 37-44
Author(s):  
TRUONG VAN DO ◽  
HUNG VIET NGUYEN ◽  
KHUONG DUY LE
Keyword(s):  
New Species ◽  
Outer Surface ◽  
Leaf Blade ◽  
Conservation Status ◽  
Similar Species ◽  
Median Lobe ◽  
Central Vietnam ◽  
Inner Surface ◽  
A New Species

Aristolochia vuquangensis (Aristolochia subgenus Siphisia), a new species from Central Vietnam, is described and illustrated here. This species is most similar to A. wardiana and A. forrestiana by sharing an ovate to lanceolate-ovate leaf blade and a cylindric or saccate-shaped limb, but it differs principally from the two species in having a densely brown hirsute outer surface of perianth, an oblong-ovate utricle, 1.1–1.5 cm long, an unequally semicircular 3-lobed limb in pre-anthesis, with a revolute median lobe, larger than two lateral lobes, abaxially concave, and lower one-third of the inner surface of limb densely covered by trichomes. A detailed description, illustrations, information on ecology, conservation status, and comparison with two similar species are also provided.

Synopsis of Cnidoscolus (Euphorbiaceae) in midwestern Brazil, including taxonomic updates, a new species, and a reestablishment of C. neglectus

Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 179-200
Author(s):  
CELLINI CASTRO DE OLIVEIRA ◽  
ANDRÉ LAURÊNIO DE MELO ◽  
MARCOS JOSÉ DA SILVA
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Systematic Position ◽  
The Other ◽  
Dichotomous Key ◽  
Distributional Information ◽  
A New Species

A synopsis of the genus Cnidoscolus is presented for the midwestern region of Brazil, which resulted from the analysis of about 1,200 specimens from 62 national and foreign herbaria, including type collections. Observations of populations in field were also made. Nine species are recognized, one of which, C. mcvaughii, is new to science. It is described and illustrated, and comments about its geographic distribution, morphological relationships, systematic position, phenology, and conservation status are provided, as well as images and a map. The other species are contrasted by a dichotomous key. Also, distributional information, maps, conservation evaluations, images and morphologically diagnoses are included. Eight synonymizations, one lectotypification, a neotypifcation, and the re-establishment of C. neglectus are proposed.

scholarly journals Aristolochia quiricoana (Aristolochiaceae), a new species from southern Costa Rica

2021 ◽  
Author(s):  
José Esteban Jiménez ◽  
Marco Cedeño-Fonseca ◽  
Mario A. Blanco
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Buenos Aires ◽  
Conservation Status ◽  
Similar Species ◽  
New Taxon ◽  
Botanical Exploration ◽  
Floral Color ◽  
Morphological Distinction ◽  
A New Species

Background and Aims: Aristolochia is the largest genus in Aristolochiaceae and is widely distributed in the world. A recent synopsis of Aristolochia in Costa Rica recognized 19 species; nevertheless, recent botanical exploration in southwestern Costa Rica has revealed yet another new species of this genus. Methods: The new species resulted from fieldwork in Buenos Aires, Puntarenas Province. Specimens from several herbaria were examined, as well as the type material of the most morphologically similar species. Comments about its distribution, habitat, phenology, conservation status and morphological distinction from related species are provided.Key results: Aristolochia quiricoana, a member of Aristolochia series Thyrsicae, is described and illustrated from the southern Pacific region of Costa Rica, where it is apparently endemic. It is similar to A. ornithorhyncha, from which it is distinguished by its shorter pedicels, wider, oblong perigone limbs with a shorter appendix, and a different floral color pattern.Conclusions: The new taxon described here represents the 22nd species documented in Aristolochia series Thyrsicae, as well as the 20th species of the genus from Costa Rica.

scholarly journals Anemopaegma kawense (Bignoniaceae), a new species from the Kaw Mountain (French Guiana), with notes on related species and a key to the genus in the Guianas

2021 ◽  
Vol 154 (2) ◽  
pp. 296-306
Author(s):  
Olivier Lachenaud ◽  
Fabiana Firetti ◽  
Lúcia G. Lohmann
Keyword(s):  
New Species ◽  
French Guiana ◽  
Conservation Status ◽  
Iucn Red List ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Centre Of Diversity ◽  
North Eastern ◽  
The Guianas ◽  
A New Species

Background and aims – The genus Anemopaegma (Bignoniaceae) includes around 47 species and has its centre of diversity in Brazil. Here, we describe and illustrate a new species from French Guiana, Anemopaegma kawense, and compare it to the two most similar species, A. foetidum and A. granvillei. We further assess the conservation status of all three species.Material and methods – Morphological descriptions are based on herbarium specimens deposited at BM, BR, CAY, INPA, K, MO, P, SPF, and U, and, in the case of the newly described species, also on field observations. The conservation status assessments follow the IUCN Red List criteria.Key results – Anemopaegma kawense differs from both A. foetidum and A. granvillei by its densely villose twigs, longitudinally plicate leaflets with secondary veins not or hardly prominent below, and tertiary veins impressed below. It is further separated from A. foetidum by the leaflets that are villose below and the calyx that is entirely pubescent outside. On the other hand, A. kawense differs from A. granvillei by the densely lepidote outer surface of the corolla, shorter petiolules, leaflets with midrib impressed above, shorter bracts and bracteoles, inflorescence peduncle exceeding the rachis, and pedicels densely puberulous, not lepidote or only sparsely so at the apex. This species is endemic to the Kaw Mountain in north-eastern French Guiana, where it grows in low stunted forest on laterite; it is assessed as Endangered according to the IUCN criteria. New descriptions are provided for A. granvillei, which is newly reported from Suriname, and for A. foetidum, which is newly reported from French Guiana; these two species are assessed as Endangered and Least Concern, respectively. Lectotypes are designated for A. maguirei, which is here synonymised with A. foetidum, and for A. umbellatum, another synonym of that species. A key to the 12 species of Anemopaegma occurring in the Guianas is presented.

Astragalus dinawarii (section Incani), a New Species from the Talesh Mountains, Northwestern Iran

2021 ◽  
Vol 29 ◽  
pp. 221-226
Author(s):  
Mahmoud Bidarlord ◽  
Farrokh Ghahremaninejad
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Color Images ◽  
Similar Species ◽  
Northwestern Iran ◽  
Reproductive Characters ◽  
A New Species

Astragalus dinawarii Bidarlord & F. Ghahrem. (Fabaceae) is described as a new species based on material collected on the Talesh Mountains, northwestern Iran. This species belongs to a large bifurcating section, Astragalus L. sect. Incani DC. Morphologically, it is close to A. bukanensis Maassoumi & Podlech, A. diversus Podlech & Maassoumi, and A. dilutuloides Maassoumi, F. Ghahrem. & Bagheri, sharing several densely hairy leaflets and stipitate legumes. This species is easily distinguished from similar species by a set of both vegetative and reproductive characters such as size, shape, number of leaflets, shorter calyx, and longer legume stipe. A detailed description and comparisons with similar taxa, color images, distribution and habitat, and conservation status of the new species are provided.

Hysterionica chamomilloides (Asteraceae: Astereae) a new species from the grassland ecosystem of Río de La Plata

Phytotaxa ◽  
2021 ◽  
Vol 482 (1) ◽  
pp. 36-44
Author(s):  
LEONARDO PAZ DEBLE
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Morphological Description ◽  
Similar Species ◽  
South American ◽  
Review Of Literature ◽  
South American Species ◽  
Field Surveys ◽  
Mountainous Regions ◽  
A New Species

Hysterionica s.l. (including Neja) comprises ca. 15 species distributed mainly in the grasslands of southern Brazil, Uruguay, central and northern Argentina and Southern Paraguay. Based on field surveys, study of nomenclatural types and other specimens, and review of literature, a new species is proposed here, Hysterionica chamomilloides, endemic of mountainous regions of northern Uruguay, and southwestern Rio Grande do Sul state, Brazil. This work provides a detailed morphological description of the new species, information on its geographic distribution, habitat, phenology, conservation status, and discusses the main differences between H. chamomilloides and the morphologically most similar species. Illustrations, images and a key to the South American species of Hysterionica are also supplied.

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