A taxonomic revision of the genus Aethionema s.l. (Brassicaceae) in Iran

Phytotaxa ◽  
2018 ◽  
Vol 356 (4) ◽  
pp. 241 ◽  
Author(s):  
HAMID MOAZZENI ◽  
IHSAN A. AL-SHEHBAZ ◽  
DMITRY A. GERMAN ◽  
MOSTAFA ASSADI ◽  
JOCHEN MÜLLER ◽  
...  
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Distribution Maps

The present revision focuses on the enigmatic Southwest Asian genus Aethionema in Iran based on taxonomic literature, fieldwork, and study of over 400 herbarium specimens. As a result of the present study, A. diastrophis and A. transhyrcanum are newly found for Iran. The former is morphologically closer to A. membranaceum and A. kopetdaghi rather than to A. spinosum, under which it was previously synonymized. Aethionema edentulum and A. levandowskyi are placed in the synonymy of A. membranaceum and A. grandiflorum, respectively. The genus is represented in Iran by 16 species, of which six are endemic. Detailed descriptions, distribution maps, IUCN conservation status assessments, and illustrations of the species are provided. The lectotypes of A. cordatum, A. elongatum, A. fimbriatum, A. grandiflorum, A. koenigii, A. moricandianum, A. pallidiflorum, A. pulchellum, A. recurvum, A. schelkownikowii, A. sintenisii, A. spinosum, A. stenopterum, A. umbellatum, A. virgatum, A. woronowii, Lepidium intricatum, and Moriera gracilis are designated.

A taxonomic revision ofAllium(Alliaceae) in the Canadian prairie provinces

Botany ◽  
2010 ◽  
Vol 88 (9) ◽  
pp. 787-809 ◽  
Author(s):  
Hyeok Jae Choi ◽  
J. Hugo Cota-Sánchez
Keyword(s):  
Native Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Ecological Data ◽  
Canadian Prairie ◽  
Distribution Maps ◽  
Allium Schoenoprasum ◽  
Allium Tricoccum ◽  
Prairie Provinces

The taxonomy, rarity, and conservation status of Allium  L. is revised for the Canadian prairie provinces, based on analyses of herbarium specimens and fieldwork. Five species are recognized: Allium schoenoprasum  L., A. geyeri S. Watson var. tenerum M.E. Jones, A. textile A. Nelson & J.F. Macbride, A. cernuum Roth, and A. stellatum Ker Gawler. Distribution maps and a key to species are provided, as well as complete descriptions of the species examined, including new illustrations, information on nomenclatural types, synonymies, and chromosomal and ecological data. A lectotype is designated for A. geyeri var. tenerum. In this study, A. geyeri var. geyeri reported from Alberta and Saskatchewan and ranked in these provinces as having rarity levels S2 and S1, respectively, by the Nature Conservancy, is excluded from the Canadian flora and the rare list of these provinces because it was misidentified from a herbarium specimen of A. textile. Allium tricoccum Solander in W. Aiton is regarded as a non-native species to Manitoba. The rarity and conservation status of Allium in the Canadian prairie provinces is as follows: (i) A. schoenoprasum, listed as S2 in Saskatchewan, is rare in Manitoba, although its rarity status has not been formally assessed in the province; (ii) A. geyeri var. tenerum is the rarest Allium taxon, with distribution restricted to the Waterton Lakes National Park areas of Alberta, and is currently listed as S2; and (iii) A. cernuum was re-evaluated and a rarity level of S1S2 was recommended for the species in Saskatchewan, particularly in its southwestern distributional habitat.

scholarly journals A taxonomic revision of the African genus Desplatsia Bocq. (Malvaceae – Grewioideae)

2019 ◽  
Author(s):  
Julia Wellsow ◽  
Michelle Hart ◽  
Peter Wilkie ◽  
David J. Harris
Keyword(s):  
Conservation Status ◽  
Central Africa ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Distribution Maps ◽  
West And Central Africa ◽  
Species Descriptions ◽  
First Time ◽  
Trees And Shrubs ◽  
African Genus

A taxonomic revision of Desplatsia Bocq. (Malvaceae s. lat. Juss., subfamily Grewioideae Hochr., tribe Grewieae Endl.) based on about 800 herbarium specimens is presented. Desplatsia is a genus of trees and shrubs found in tropical West and Central Africa and is characterized by subulately divided stipules, the absence of an androgynophore, stamens that are fused to a tube at the base, and large and distinctive fruits that are dispersed by elephants. Four species are recognized (D. subericarpa Bocq., D. chrysochlamys (Mildbr. & Burret) Mildbr. & Burret, D. dewevrei (De Wild. & T.Durand) Burret and D. mildbraedii Burret) and 12 species names are placed into synonymy, two of which have been put into synonymy for the first time: D. floribunda Burret syn. nov. and D. trillesiana (Pierre ex De Wild.) Pierre ex A.Chev. syn. nov. All four species are widely distributed and their conservation status is assessed as Least Concern (LC). A key to the species, full species descriptions, illustrations, a specimen citation list and distribution maps are provided.

scholarly journals Co-occurring cryptic species pose challenges for conservation: a case study of the African dwarf crocodile (Osteolaemusspp.) in Cameroon

Oryx ◽  
2014 ◽  
Vol 49 (4) ◽  
pp. 584-590 ◽  
Author(s):  
Nicole L. Smolensky
Keyword(s):  
Cryptic Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Single Species ◽  
Conservation Strategies ◽  
Encounter Rates ◽  
Distribution Maps ◽  
Species Complexes ◽  
Threatened Taxa ◽  
Population Structures

AbstractThe conservation status of threatened taxa may be obfuscated by the detection of cryptic species complexes, in both vertebrate and invertebrate species. African dwarf crocodiles (Osteolaemusspp.) are hunted throughout their range but their conservation status is unknown. Few population assessments have been carried out and there has been a taxonomic revision of the number of species in the genus. The similar morphologies ofOsteolaemus tetraspisandOsteolaemus osbornipose a challenge for conservation in Cameroon, where they are still managed as a single species. Nocturnal spotlight surveys were conducted in three regions during August–November 2010 and December 2011–February 2012 to provide population assessments ofO. tetraspisandO. osborniand raise awareness of the two species in Cameroon. The mean encounter rates ofO. tetraspisandO. osborniwere 1.02 ± SD 1.34 (65 individuals in 39 surveys) and 0.61 ± SD 0.38 (three in four surveys) crocodiles per km, respectively. TheO. tetraspispopulation comprised juveniles predominantly and had a male-biased sex ratio. The fewO. osbornidetected comprised both adults and juveniles. Both species are threatened in Cameroon, based on low encounter rates, young population structures and the threats of habitat loss and hunting pressure. This study provides distribution maps and serves as a baseline to quantify population trends and inform conservation strategies.

A taxonomic revision of the Brazilian species of Encyclia (Orchidaceae: Epidendroideae: Epidendreae)

Phytotaxa ◽  
2018 ◽  
Vol 342 (1) ◽  
pp. 1
Author(s):  
CLÁUDIA A. BASTOS ◽  
THIAGO E. C. MENEGUZZO ◽  
CÁSSIO VAN DEN BERG
Keyword(s):  
Taxonomic Revision ◽  
Minas Gerais ◽  
Herbarium Specimens ◽  
Nomen Nudum ◽  
Distribution Maps ◽  
Brazilian Species ◽  
New Occurrences

A taxonomic revision of the Brazilian species of Encyclia is presented, based on analysis of roughly 1,400 herbarium specimens, including types. Thirty-nine species and one variety are listed for Brazil; we indicate 101 synonyms, of which eight are newly proposed. Lectotypes are chosen for five names (E. chironii, E. dutrae, E. paraënsis, E. tripartita and Epidendrum capartianum), including accepted names and synonyms. Two names are indicated as invalid (E. randii var. rondoniensis and E. vazzoleri), one name as a nomen nudum (E. guesneliana) and another as superfluous (Epidendrum pabstii). The occurrence of E. auyantepuiensis and E. thienii is confirmed for Brazil, and new occurrences are documented of E. fimbriata in Minas Gerais (in addition to Bahia) and E. linearifolioides in Maranhão and possibly Paraná (in addition to Matto Grosso and Tocatins States and Bolivia and Paraguay). All species are described and illustrated, and distribution maps are included. For both varieties of E. patens, nomenclatural and taxonomic notes 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.

Taxonomic revision of Sabicea subgenus Anisophyllae (Ixoroideae, Rubiaceae) from Tropical Africa, with four new species

Phytotaxa ◽  
2017 ◽  
Vol 293 (1) ◽  
pp. 1 ◽  
Author(s):  
LISE A. ZEMAGHO ◽  
SIGRID LIEDE-SCHUMANN ◽  
OLIVIER LACHENAUD ◽  
STEVEN DESSEIN ◽  
BONAVENTURE SONKE
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Field Observations ◽  
Tropical Africa ◽  
Center Of Diversity ◽  
Infraspecific Taxa ◽  
Group A ◽  
Species Descriptions

A taxonomic revision of Sabicea subgenus Anisophyllae (Rubiaceae), a group restricted to Central and East Africa, is presented here. This work, based on a study of herbarium specimens and field observations in Cameroon and Gabon, includes a survey of the morphological features of the group, a key to the species, descriptions of all the taxa, and IUCN conservation status assessments. Fifteen species are recognised, four of which are described as new (Sabicea mapiana, S. ndjoleensis, S. parmentierae, S. sciaphilantha), three former varieties are raised to species rank (S. crystallina, S. jacfelicis, S. tersifolia), and one species previously sunk into synonymy is restored (S. bequaertii). Two new infraspecific taxa are also described, Sabicea crystallina subsp. engongensis and S. sciaphilantha subsp. hirsuta. The group has its center of diversity in Gabon, where 10 of the 15 species occur, three of them being endemic to the country.

Taxonomic Revision of Dolichandra (Bignonieae, Bignoniaceae)

Phytotaxa ◽  
2017 ◽  
Vol 301 (1) ◽  
pp. 1 ◽  
Author(s):  
LUIZ HENRIQUE M. FONSECA ◽  
SIMONE MIRANDA CABRAL ◽  
MARIA DE FATIMA AGRA ◽  
LÚCIA G. LOHMANN
Keyword(s):  
Cross Section ◽  
Endemic Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Gallery Forest ◽  
Southern Brazil ◽  
Juvenile Form ◽  
Distribution Maps ◽  
Lowland Forests ◽  
Northeastern Argentina

Dolichandra Cham. emend. L.G.Lohmann is a genus of Neotropical lianas in tribe Bignonieae (Bignoniaceae) that comprises nine species. It is centered in Paraguay, southern Brazil and northeastern Argentina, where six species occur and three are endemic. Species of Dolichandra are generally climbers of dry and wet lowland forests, also growing in swamps and gallery forest formations. The genus is characterized by four main synapomorphies: (i) stems with multiple dissected phloem wedges in cross-section, (ii) trifid and uncate tendrils, (iii) psilate and 3-colpate pollen, and (iv) capsules with four lines of dehiscense. Other features of the genus are the large and membranaceous calyces, dimorphic growth with the juvenile form attaching by its uncinate tendrils, lanceolate prophylls of the axillary buds, congested-cymose inflorescences, and a lobed nectary disk. In this taxonomic revision, we present detailed descriptions for all species recognized, taxonomic and nomenclatural comments, distribution maps and information on the habitat and distribution of each species, as well as information on their conservation status (i.e., IUCN categories), and illustrations of diagnostic characters. Thirty-five names are treated as synonyms, six of which are newly proposed. More specifically, Tecoma maximiliani Mart. ex DC. is synonymized under Dolichandra unguiculata (Vell.) L.G. Lohmann, Bignonia pseudounguis Desf., Bignonia unguis-cati var. radicans DC., and Macfadyena hassleri Sprague are synonymized under Dolichandra uncata (Andrews) L.G. Lohmann, while Bignonia tweediana Lindley and Dolichandra kohautiana Presl are synonymized under Dolichandra ungui-cati (L.) L.G. Lohmann. Lectotypes are proposed for 13 species names, namely Bignonia californica Brandegee, Bignonia gracilis G. Lodd., Bignonia inflata Griseb. Bignonia tweediana Lindley, Bignonia unguis-cati var. guatemalensis K. Schum. & Loes., Bignonia unguis-cati var. serrata Bureau & K. schum., Dolichandra cynanchoides Cham., Dolichandra fenzliana Miq. Macfadyena hassleri Sprague, Parabignonia steyermarkii Sandwith, Paradolichandra chodatii var. brachycalyx , Spathodea mollis and Tecoma maximiliani Mart. ex DC.

scholarly journals Taxonomic revision of Martinella Baill. (Bignonieae, Bignoniaceae)

PhytoKeys ◽  
2021 ◽  
Vol 177 ◽  
pp. 77-116
Author(s):  
Eric Y. Kataoka ◽  
Lúcia G. Lohmann
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Axillary Buds ◽  
Second Step ◽  
Phylogenetic Hypothesis ◽  
Distribution Maps ◽  
Taxonomic Treatment ◽  
Molecular Phylogenetic ◽  
Molecular Characters

Martinella Baill. is a genus of Neotropical lianas in tribe Bignonieae (Bignoniaceae). The genus is monophyletic and well supported by morphological and molecular characters. Members of Martinella are characterized by a continuous interpetiolar ridge surrounding the stem, bilobed or 4–5-parted calyces, and minute triangular prophylls of the axillary buds. Generic circumscription remained unchanged since the description of the genus, although unclear species limits remained. Based on extensive fieldwork, herbarium work, and a molecular phylogenetic hypothesis for the genus, we here recognize five species of Martinella. Of these, three were recognized in earlier treatments for the genus, while two represent new species described here, Martinella lanuginosa Kataoka & L.G.Lohmann, sp. nov. and Martinella tomentosa Kataoka & L.G.Lohmann, sp. nov.Martinella iquitoensis A.Samp. is treated as a synonym of M. insculpta Sprague & Sandwith. In addition, one second-step lectotype is designated for Bignonia martini DC., and neotypes are designated for Doxantha longisiliqua Miers and Martinella gollmeri K.Schum. This work provides a full taxonomic treatment for Martinella, including a complete list of synonyms, morphological descriptions, illustrations, photographs, distribution maps, conservation status, and comments for all five species recognized.

A revision of the genus Trithrinax (Cryosophileae, Coryphoideae, Arecaceae)

Phytotaxa ◽  
2013 ◽  
Vol 136 (1) ◽  
pp. 1 ◽  
Author(s):  
ÁNGELA CANO ◽  
MATHIEU PERRET ◽  
FRED W. STAUFFER
Keyword(s):  
Morphological Analysis ◽  
Conservation Status ◽  
Natural Populations ◽  
Herbarium Specimens ◽  
Literature Research ◽  
Distribution Maps ◽  
Area Of Occupancy ◽  
Status Assessment ◽  
Species Descriptions

The palm genus Trithrinax is revised and three species and four varieties are accepted (T. brasiliensis var. brasiliensis, T. brasiliensis var. acanthocoma, T. campestris, T. schizophylla var. schizophylla and T. schizophylla var. biflabellata comb. nov.). This taxonomic treatment presents detailed and complete description of all taxa, based on the studies of natural populations in Argentina, Brazil and Paraguay, the morphological analysis of herbarium specimens (including all available types) and an exhaustive literature research. Illustrations are presented for all taxa and identification keys to the species and varieties are proposed. Species descriptions include updated distribution maps, information about their ecology, taxonomic notes and a compilation of common names and uses. The conservation status assessment reveals an important level of threatening for all taxa, ranging from vulnerable (VU) to endangered (EN), mainly due to the decline of the area of occupancy and the quality of habitat.

scholarly journals Taxonomic revision of Saudi Arabian Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) with one new variety and four new combinations

2018 ◽  
Vol 25 (1) ◽  
pp. 19-43 ◽  
Author(s):  
Dhafer Ahmed Alzahrani ◽  
Enas Jameel Albokhari
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Fruit Shape ◽  
New Combinations ◽  
New Variety ◽  
Distribution Maps ◽  
Flower Traits ◽  
Saline Habitats ◽  
Plant Taxon

The genera Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) present different morphological characters, viz. growth habit, leaf features, flower traits and fruit shape, and have a high diversity of species in Africa, Australia and Asia. Six species of Tetraena [T. alba (L.f.) Beier & Thulin, T. coccinea (L) Beier & Thulin, T. decumbens (Delile) Beier & Thulin, T. hamiensis (Schwein f.) Beier & Thulin, T. propinqua (Decne.) Ghaz. & Osborne and T. simplex (L.) Beier & Thulin], and one species of Zygophyllum (Z. fabago L.) have been identified in Saudi Arabia, most of which grow in sandy soils and saline habitats as shrubs and herbs. One new endemic variety (T. alba var. arabica Alzahrani & Albokhari) along with four new combinations [T. alba var. amblyocarpa (Baker) Alzahrani & Albokhari, T. hamiensis var. qatarensis (Hadidi ex Beier & Thulin) Alzahrani & Albokhari, T. hamiensis var. mandavillei (Hadidi ex Beier & Thulin) Alzahrnai & Albokhari, and T. propinqua subsp. migahidii (Hadidi ex Beier & Thulin) Alzahrani & Albokhari] are proposed. Descriptions, illustrations, distribution maps and a key for identification of the taxa are presented. Conservation status has been proposed for the new variety and combinations.Bangladesh J. Plant Taxon. 25(1): 19-43, 2018 (June)

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