scholarly journals A revision of Mezoneuron (Leguminosae: Caesalpinioideae) in New Caledonia, with perspectives on vegetation, geology, and conservation

Phytotaxa ◽  
2015 ◽  
Vol 207 (1) ◽  
pp. 68 ◽  
Author(s):  
Ruth Clark ◽  
EDELINE GAGNON

Mezoneuron is a genus segregated from Caesalpinia s.l. There are five species of Mezoneuron in New Caledonia, all of which are endemic to this island group. Full descriptions of the species are provided here, together with an identification key, a composite illustration, and distribution maps. Preliminary conservation assessments have been produced using distribution data from herbarium specimens in combination with knowledge of habitats and threats. These reveal a level of threat to each species ranging from Vulnerable to Critically Endangered. Three new combinations are proposed.

Phytotaxa ◽  
2021 ◽  
Vol 487 (1) ◽  
pp. 1-25
Author(s):  
JUN-HO SONG ◽  
SUK-PYO HONG

In the present study, we presented a taxonomic revision of the genus Sorbaria (Sorbarieae; Amygdaloideae) with a new infrageneric classification. Moreover, we extensively reviewed various data for Sorbaria species, including previous anatomical, micromorphological, and palynological data. The new sectional classification was based on morphological, micromorphological, and palynological evidence, with two sections: sect. Sorbaria aut. and sect. Kirilowiana J.-H. Song & S.-P. Hong (sect. nov.). Overall, four species and five varieties (including two nomenclatural novelties) were recognized: S. sorbifolia (Linnaeus) A. Braun var. sorbifolia, S. sorbifolia var. glandulifolia J.-H. Song & S.-P. Hong, S. sorbifolia var. stellipila Maximowicz, S. pallasii (G. Don) Pojarkova, S. tomentosa (Lindley) Rehder var. tomentosa, S. tomentosa var. angustifolia (Wenzig) Rahn., S. kirilowii (Regel & Tiling) Maximowicz var. kirilowii, S. kirilowii var. arborea (C.K. Schneider) J.-H. Song & S.-P. Hong (comb. & stat. nov.), and S. kirilowii var. dubia (C.K. Schneider) J.-H. Song & S.-P. Hong (comb. nov.). Some illustrations and syntype were designated as the lectotype for several names. The classification was based on a comprehensive morphological examination of herbarium specimens, including field observations and observations of types, micromorphological, and palynological characteristics. In addition, we provided an identification key, diagnostic characteristics, full descriptions, comprehensive nomenclatural treatments and taxonomic notes (including complete synonymy), and distribution maps of Sorbaria species.


Phytotaxa ◽  
2018 ◽  
Vol 337 (1) ◽  
pp. 1 ◽  
Author(s):  
TÂNIA M. DE MOURA ◽  
GWILYM P. LEWIS ◽  
VIDAL F. MANSANO ◽  
ANA M. G. A. TOZZI

The genus Mucuna comprises approximately 105 tropical and sub-tropical species, with the highest diversity occurring in the Paleotropics. In the Neotropics, 13 new species have been described recently and a number of regional floras have been published. A recent floristic treatment for Colombia has summarized the Mucuna species found in the Neotropics, but since then many new species and new geographical records have been published. A complete taxonomic treatment of all neotropical species and an identification key to all neotropical taxa is currently lacking. The aim of this study is to present a complete taxonomic account of the species of Mucuna occurring in the Neotropics. Descriptions of 25 taxa (24 species and one variety) are included in the treatment, including type specimen details, synonymy, illustrations, distribution maps, and preliminary conservation assessments for each species, together with a species identification key.


Zootaxa ◽  
2021 ◽  
Vol 4964 (2) ◽  
pp. 251-287
Author(s):  
JONAS R. STONIS ◽  
ARŪNAS DIŠKUS ◽  
M. ALMA SOLIS ◽  
ALEXANDRE K. MONRO

We describe a new genus, Manitischeria Diškus & Stonis, gen. nov., and five new species: Manitischeria selindica Stonis & Diškus, sp. nov., M. namibiensis Stonis & Diškus, sp. nov. from Africa, and M. brachiata Diškus & Stonis, sp. nov., M. symbolica Diškus & Stonis, sp. nov., and M. baryshnikovae Diškus & Stonis, sp. nov. from South East Asia. We discuss the diagnostics of Manitischeria gen. nov. composed of these new species and others transferred from Tischeria Zeller. Species are mostly trophically associated with Malvaceae, but also Rhamnaceae and Betulaceae. We list 18 currently known species of Manitischeria gen. nov., including M. ptarmica (Meyrick), the type species, and provide 13 new combinations and the first documentation of genitalia of some, previously little-known species. New species are illustrated with photographs or drawings of the adults, genitalia, and the leaf mines when available. We briefly discuss the use of herbarium specimens to discover lepidopteran leaf mines, host plant, and distribution data. 


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.


2021 ◽  
Vol 49 ◽  
pp. 1-26
Author(s):  
Rogier De Kok ◽  

A revision of the genus Beilschmiedia (Lauraceae) from Thailand and Indochina is presented with a summary of its taxonomic history, plus keys, full descriptions of each species, distribution maps, conservation assessments, ecological information, ethno-botanical notes and a discussion of its morphology. In this treatment, 21 species are recognized; 14 names are lectotypified (B. argentata, B. balansae, B. balansae var. muticarpa, B. clarkei, B. elegantissima, B. ferruginea, B. globularia, B. glomerata var. tonkinensis, B. lucidula, B. obovalifoliosa, B. palembanica, B. poilanei, B. sphaerocarpa and B. wightii), five names are placed into synonymy for the first time, and B. laotica Kosterm. ex de Kok is validly published here for the first time. In addition, one new variety (B. percoriacea var. percoriacea de Kok) is proposed and one new combination (B. percoriacea var. glaucoides de Kok) is made. Nine species are considered to be Least Concern, one is Critically Endangered, five are Endangered, and five are listed as Vulnerable.


2018 ◽  
Vol 31 (2) ◽  
pp. 120 ◽  
Author(s):  
Ulf Swenson ◽  
Johan A. A. Nylander ◽  
Jérôme Munzinger

Pleioluma (Baill.) Baehni (Sapotaceae) circumscribes some 40 medium-sized trees and shrubs, many gynodioecious, in Australia, Malesia and New Caledonia. Systematics of the group is unclear and delimitations of species are notoriously difficult. We explore species boundaries in New Caledonia by multiple accessions of ‘species’, molecules and morphology in a Bayesian framework. The molecular phylogenetic signal is weak, but morphology provides enough information to support groups, species and recognition of one cryptic species. Pleioluma is then revised for New Caledonia, a genus distinguished by areolate higher leaf venation, sepals being pubescent on both surfaces, stamens inserted in or below the middle of the corolla tube, presence of staminodes, foliaceous cotyledons and endosperm. Seventeen endemic species are recognised with descriptions, recognition notes, distributions, etymologies and conservation assessments. Six species are described as new, of which four are assigned IUCN preliminary status as Critically Endangered and in urgent need of protection (Pleioluma acutifolia Swenson & Munzinger, P. belepensis Swenson & Munzinger, P. butinii Swenson & Munzinger and P. tchingouensis Swenson & Munzinger). The new species, P. dioica Swenson & Munzinger and P. tenuipedicellata Swenson & Munzinger are respectively assessed as Data Deficient and Vulnerable. The micro-endemic species P. vieillardii (Baill.) Swenson & Munzinger, confined to the Koniambo massif, is also critically endangered and needs urgent conservation management.


Zootaxa ◽  
2017 ◽  
Vol 4321 (1) ◽  
pp. 1
Author(s):  
LUCAS DENADAI DE CAMPOS ◽  
PEDRO G. B. SOUZA-DIAS ◽  
SILVIO S. NIHEI

Eidmanacris Chopard, 1956 is revised, redescribed and eleven species are redescribed. Seven new species from the Brazilian Atlantic Forest and Cerrado (E. scopula Campos sp. nov., E. gigas Campos sp. nov., E. neomarmorata Campos, sp. nov.; E, desutterae Campos, sp. nov.; E. putuhra Campos, sp. nov.; E. fontanettiae Campos, Nihei & de Mello, sp. nov. and E. melloi Campos, sp. nov.) are described, based on adults. One new generic synonymy with Endophallusia de Mello, 1990 syn. nov., resulting in two new combinations (E. minuta (de Mello, 1990) comb. nov. and E. endophallica (de Mello, 1990) comb. nov.), a new combination with Phalangopsis spelucae Mello-Leitão, 1937 (E. speluncae (Mello-Leitão, 1937) comb. nov.), and one species synonymy (E. lencionii Bolfarini, 2016 = E. dissimilis Desutter-Grandcolas, 1995, syn. nov.) are proposed. Following this revision, Eidmanacris comprises a total of 29 species. An identification key to species, and distribution maps are also given. 


2020 ◽  
Author(s):  
Samah Alharbi ◽  
Rahmah Al Qthanin

This study provides a taxonomic revision for Ceropegia sec. Huernia in the flora of Saudi Arabia. Forty-eight quantitative and qualitative morphological characters were analysed using principal component analysis (PCA), principal coordinates analysis (PCoA) and the unweighted pairs group using mean average (UPGMA) to separate and help delimit taxa. We proposed to reduce the number of names reported in Saudi Arabia from 11 to four species: C. arabica comb. nov.,C. Khalidbinsultanii comb. nov., C. laevis and C. lodarensis. This study also suggested reducing two of Plowes’ new names to a variety level under C. lodarensis (var. foetida comb. nov. and var. rubrosticta comb. nov.). A key to the species, detailed morphological descriptions, illustrations, distribution maps, ecology, etymology and preliminarily conservation assessments following IUCN criteria are provided.


2021 ◽  
Vol 46 (1) ◽  
pp. 130-151
Author(s):  
Luís A. Funez ◽  
Gustavo Hassemer ◽  
Rafael Trevisan

Abstract—Lysimachia is a genus that was recently recircumscribed and greatly enlarged by the inclusion of many genera in the Primulaceae. In this work five new species, all endemic from the grasslands of southern Brazil, are described, two new combinations are proposed, and 10 typifications are effected. The preliminary conservation status of these species are assessed, and we also provide field photographs and distribution maps. Furthermore, we provide an identification key to all species of Lysimachia that occur in Brazil.


Phytotaxa ◽  
2021 ◽  
Vol 483 (3) ◽  
pp. 190-210
Author(s):  
YI TONG ◽  
YUNFEI DENG

Justicia sect. Harnieria is revised from the Philippines for the first time. Seven species are recognized. Two new combinations (J. aspera and J. ramosii) and a replacement name (J. sulitii) are proposed. An identification key to the species is provided. The lectotype is designated for the name Justicia loheri. The description, line drawings and distribution maps are also provided for each species excluding J. aspera.


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