An expanded circumscription for the previously monotypic Pleurospermopsis (Apiaceae) based on nrDNA ITS sequences and morphological evidence

Phytotaxa ◽  
2020 ◽  
Vol 460 (2) ◽  
pp. 129-136
Author(s):  
JING ZHOU ◽  
JIN WEI ◽  
ZHENWEN LIU
Keyword(s):  
Taxonomic Revision ◽  
Identification Key ◽  
Its Sequences ◽  
New Combination ◽  
Morphological Evidence ◽  
Herbarium Specimens ◽  
Nrdna Its

Under the framework phylogeny of Apiaceae subfamily Apioideae and through a carefully examination of herbarium specimens, a taxonomic revision for Pleurospermopsis (a genus originally accepted as monotypic to include P. sikkimensis as the only representative), is presented. Its circumscription is expanded to comprise Pleurospermum bicolor (Franch.) Norman ex Pan & Watson. Therefore, a new combination of Pleurospermopsis bicolor (Franch.) J. Zhou & J. Wei is proposed with full taxonomic treatments. An identification key is also provided for the genus.

A Taxonomic Revision of Desmodium (Leguminosae, Papilionoideae) in Brazil

Phytotaxa ◽  
2014 ◽  
Vol 169 (1) ◽  
pp. 1 ◽  
Author(s):  
LAURA CRISTINA PIRES LIMA ◽  
LUCIANO PAGANUCCI DE QUEIROZ ◽  
ANA MARIA GOULART DE AZEVEDO TOZZI ◽  
GWILYM PETER LEWIS
Keyword(s):  
New Record ◽  
Taxonomic Revision ◽  
Field Trips ◽  
Identification Key ◽  
New Combination ◽  
Herbarium Specimens ◽  
New Name ◽  
Brazilian Species

Desmodium is characterized mainly by lilac flowers arranged in pseudoracemose inflorescences, stamens monadelphous or diadelphous and a lomentaceous fruit generally covered by uncinate hairs. A taxonomic revision of the Brazilian species was carried out based on the analysis of 3,000 herbarium specimens, including all nomeclatural types. Field trips to the most species-rich areas of Desmodium in Brazil were undertaken, resulting in the sampling of 29 out of the 34 species recognised for  the country. We recognise 101 names as synonyms, 27 of which are new. Lectotypes were designated for 60 accepted names and synonyms, and two neotypes and one epitype were chosen. A new combination is proposed for Meibomia microcarpa, as well as a new name for Meibomia guaranitica var. microcarpa. Desmodium album is a new  record for Brazil, and D. craspediferum, D. glabrescens and D. juruenense, previously known only by type collections, were recollected during this study. All species are described, mapped and illustrated. An identification key, and comments on taxonomy and nomenclature are provided. 

A taxonomic revision of the genus Sorbaria (Rosaceae) with a new infrageneric classification based on morphology, micromorphology, and palynology

Phytotaxa ◽  
2021 ◽  
Vol 487 (1) ◽  
pp. 1-25
Author(s):  
JUN-HO SONG ◽  
SUK-PYO HONG
Keyword(s):  
Taxonomic Revision ◽  
Identification Key ◽  
Herbarium Specimens ◽  
Field Observations ◽  
Morphological Examination ◽  
Infrageneric Classification ◽  
Distribution Maps ◽  
Palynological Data ◽  
Diagnostic Characteristics ◽  
Sectional Classification

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.

New insights on Hygrophorus penarioides and H. penarius (Agaricales, Hygrophoraceae) from Hungary

Phytotaxa ◽  
2019 ◽  
Vol 392 (2) ◽  
pp. 127
Author(s):  
ERIK ZAJTA ◽  
TORDA VARGA ◽  
GÁBOR M KOVÁCS ◽  
BÁLINT DIMA
Keyword(s):  
Sequence Variation ◽  
Geographical Origin ◽  
Phylogenetic Analyses ◽  
Morphological Variability ◽  
Strong Support ◽  
Morphological Evidence ◽  
Its2 Region ◽  
Herbarium Specimens ◽  
Nrdna Its ◽  
Nrdna Its Regions

The ectomycorrhiza forming basidiomycete Hygrophorus penarius sensu lato was recognized as two species, H. penarioides and H. penarius in 2007 based on molecular and morphological evidence. However, this was based on few collections of restricted geographical origin and no studies have performed molecular analysis on additional specimens to date.To this end we sequenced the nrDNA ITS regions of 29 H. penarius s. l. collections from Hungary and Slovakia and analysed with collections from previous studies. Bayesian and Maximum Likelihood phylogenetic analyses confirmed the separation of H. penarioides and H. penarius in two clades with the majority of the specimens belonging to H. penarioides and only three to H. penarius. Despite the strong support of the lineages, there was no coherent difference in basidiome and spore traits. We also provide the first evidence of an intraspecific nrDNA sequence variation in the ITS2 region of H. penarioides together with morphological variability that has not been reported to date.On the basis of our result, we conclude that the Quercus associated H. penarioides is far more common in Hungary than the Fagus associated H. penarius and we suggest that identification of the two species in the absence of DNA sequence analysis should be handled with caution, especially when herbarium specimens are examined.

Molecular phylogenetics of Pterocyclus (Apiaceae) based on nrDNA ITS sequences: revised circumscription with a restored species

Phytotaxa ◽  
2021 ◽  
Vol 498 (2) ◽  
pp. 131-138
Author(s):  
JING ZHOU ◽  
JIN WEI ◽  
JUNMEI NIU ◽  
XIAOLI LIU ◽  
ZHENWEN LIU
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Phylogenetics ◽  
Identification Key ◽  
Its Sequences ◽  
Molecular Phylogenetic Analysis ◽  
Nrdna Its ◽  
Interspecific Relationships ◽  
Molecular Phylogenetic ◽  
Independent Species

The genus Pterocyclus Klotzsch, along with many others, constituted the taxonomically complex Pleurospermum s.l. To delimit its circumscription and clarify its interspecific relationships, molecular phylogenetic analysis and detailed specimen examination were carried out. Its status as an independent genus was confirmed, with four species recognized. Pterocyclus wolffianus, the synonymous species of Pterocyclus forrsetii should be restored as an independent species. A new taxonomic account for Pterocyclus and an identification key to its four species, are provided.

Revision of Pilosocereus (Cactaceae) in the Caribbean and northern Andean region

Phytotaxa ◽  
2019 ◽  
Vol 411 (3) ◽  
pp. 129-182
Author(s):  
ALAN R. FRANCK ◽  
DUNIEL BARRIOS ◽  
KERON C. ST. E. CAMPBELL ◽  
JAMES LANGE ◽  
BRÍGIDO PEGUERO ◽  
...  
Keyword(s):  
New Species ◽  
Identification Key ◽  
New Combination ◽  
Herbarium Specimens ◽  
Andean Region ◽  
The Caribbean ◽  
One New Species

Taxonomic treatments of Pilosocereus in the Andean and Caribbean regions have varied widely. Recent authors often recognized three species only (P. lanuginosus, P. polygonus, and P. royenii), while Britton & Rose in 1920 (sub Cephalocereus) recognized 18 species in the same region. A revision of Pilosocereus is necessary, and it was carried out by the study of both herbarium specimens and living plants. Twelve species of Pilosocereus are recognized in the present paper for the Andean and Caribbean regions, including one new combination, i.e. P. curtisii, and one new species, i.e. P. jamaicensis. Typifications are provided for several names, including the Linnaean basionym Cactus royenii. Morphological descriptions, distributions, and an identification key of the recognized species are provided.

A Taxonomic Treatment of Rogiera (Guettardeae, Rubiaceae)

2021 ◽  
Vol 46 (1) ◽  
pp. 186-210
Author(s):  
Alejandro Torres-Montúfar ◽  
Hilda Flores-Olvera ◽  
Helga Ochoterena
Keyword(s):  
Taxonomic Revision ◽  
Morphological Evidence ◽  
Herbarium Specimens ◽  
Phenological Data ◽  
Distribution Maps ◽  
Taxonomic Treatment ◽  
Center Of Diversity ◽  
Previously Treated ◽  
Northern South America ◽  
First Time

Abstract—Rogiera (Guettardeae, Rubiaceae) is a Neotropical genus distributed from Mexico to northern South America that includes shrubs, treelets, or trees, which were previously treated in the taxonomically controversial and confused Rondeletia complex. Rogiera can be recognized among other Rubiaceae by the combination of multiflowered inflorescences, heterostylous flowers, quincuncial corolla aestivation, a hairy ring at the corolla mouth, and capsular fruits with loculicidal dehiscence. Despite the recent taxonomic circumscription of Rogiera there is not a comprehensive taxonomic treatment to it. Moreover, regional floristic treatments disagree on the species circumscriptions, with discrepancies in the number of species of Rogiera from 11 to 20. Based on molecular and morphological evidence studied on field and herbarium specimens, we present a taxonomic revision of Rogiera. We recognize ten species; Mexico is the center of diversity with nine species, four of them endemic. An identification key, descriptions, distribution maps, nomenclatural history, phenological data, and illustrations of all the species in the genus are provided for the first time. Several names required lecto- or epitypifications designated here.

scholarly journals The correct identity of Lasiosiphon microphyllus (Meisn.) Meisn. (Thymelaeaceae) and the new combination Lasiosiphon kuntzei (Gilg.) R.Kolokoto & Magee

Bothalia ◽  
2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Refilwe Kolokoto ◽  
James S. Boatwright ◽  
John C. Manning ◽  
Lize Von Staden ◽  
Anthony R. Magee
Keyword(s):  
Taxonomic Revision ◽  
New Combination ◽  
Herbarium Specimens ◽  
Current Application

Background: While working towards a taxonomic revision of the genus Lasiosiphon (Thymelaeaceae), it became clear that the current application of the name Lasiosiphon microphyllus did not correspond to the identity of the type material.Objectives: To effect the requisite nomenclatural changes.Method: Herbarium specimens from NBG and PRE as well as the type collections of L. microphyllus and Lasiosiphon suavissimus were studied.Results: Nomenclatural corrections are required for the taxa currently treated as L. microphyllus and L. suavissimus.Conclusions: Lasiosiphon microphyllus is recognised as the earliest name for the tetramerous species currently known as L. suavissimus. Gnidia kuntzei is the earliest available name for the pentamerous taxon currently treated as L. microphyllus and the new combination Lasiosiphon kuntzei (Gilg.) R.Kolokoto Magee is provided.

Taxonomic notes on Iris ser. Lacteae (Iridaceae) with typifications of fifteen names and one new combination

Phytotaxa ◽  
2018 ◽  
Vol 383 (3) ◽  
pp. 283 ◽  
Author(s):  
EUGENY V. BOLTENKOV
Keyword(s):  
Relevant Literature ◽  
Flower Colour ◽  
Taxonomic Revision ◽  
White Flower ◽  
Identification Key ◽  
New Combination ◽  
Purple Flower ◽  
Light Blue ◽  
Type Form

Nomenclatural and taxonomic notes, discussed in the article, are based on the result of a taxonomic revision of Iris ser. Lacteae, which is currently underway. This series includes 3 species: I. lactea, I. oxypetala, and I. tibetica. The protologues, relevant literature, and the types of all the published names belonging to the series have been reviewed. Iris lactea, in addition to the type form with milky-white flower colour, is represented by I. lactea f. biglumis, being the most widely distributed form with light-blue or pale-purple flower colour, and by I. lactea f. chrysantha, showing yellow inner perigone segments. Both taxa are typified here, and a new combination is proposed. The typification of the following names, all synonyms of either I. lactea f. biglumis (I. caricifolia, I. doniana, I. ensata var. grandiflora, I. fragrans, I. haematophylla, I. iliensis, I. longifolia, I. longispatha, I. pabularia, I. pallasii, and I. triflora) or I. oxypetala (I. moorcroftiana and I. pallasii var. chinensis) is also discussed. A list of accepted names within I. ser. Lacteae and their synonyms, including an identification key, is provided.

Taxonomic revision of the genus Anostomoides (Characiformes: Anostomidae)

Zootaxa ◽  
2019 ◽  
Vol 4646 (1) ◽  
pp. 124-144
Author(s):  
FERNANDO MASSAYUKI ASSEGA ◽  
JOSÉ LUÍS OLIVAN BIRINDELLI
Keyword(s):  
Taxonomic Revision ◽  
Cutting Edge ◽  
Junior Synonym ◽  
New Combination ◽  
Posterior Half ◽  
Body Depth ◽  
Lower Lip ◽  
Longitudinal Stripe ◽  
Components Analysis ◽  
Dermal Papillae

A taxonomic revision of Anostomoides is herein presented based on a comprehensive revision of specimens deposited in fish collections and the literature. The present revision proposes that A. laticeps is a junior synonym of A. atrianalis, while A. passionis is a junior synonym of Leporinus nattereri, and the latter is thus transferred to Anostomoides, forming the new combination Anostomoides nattereri. Principal Components Analysis (PCA) showed that examined specimens form two distinct morphotypes, corroborating the validity of both A. atrianalis and A. nattereri. Anostomoides nattereri is distinguished from A. atrianalis by having four branchiostegal rays (vs. three), three pores in infraorbital one (vs. four), 37–39 pored lateral-line scales (vs. 41–44), lower lip with rounded dermal papillae (vs. forming ridges), three dark  rounded midlateral blotches (vs. three or four vertically elongated blotches and/or a faded dark longitudinal stripe), dark lines between scale series on posterior half of body on specimens smaller than 150 mm SL (vs. dark lines absent), a greater body depth (27.6–36.2 % vs. 24.5–38.7% of SL) and smaller interorbital distance (34.4–53.8 % vs. 42.6–67.3 % of HL). Anostomoides nattereri is distributed across several tributaries of the Amazon and Orinoco rivers, whereas A. atrianalis is widespread throughout the Amazon, Orinoco, and Essequibo basins. The genus Anostomoides is currently diagnosed based on a combination of non-exclusive characters: upturned or slightly upturned mouth with four premaxillary teeth including symphyseal tooth bicuspid or with blunt cutting edge, remaining teeth slightly tricuspid (with medial cuspid distinctly larger); four dentary teeth, symphyseal tooth with truncate cutting edge (without cusps); second tooth with a single large cusp, and two lateral teeth with three or slightly more small cusps. 

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