Identification aids for Cicer (Leguminosae, Cicereae) taxa

1998 ◽  
Vol 55 (2) ◽  
pp. 243-265 ◽  
Author(s):  
S. Coles ◽  
N. Maxted ◽  
L. J. G. van der Maesen
Keyword(s):  
Herbarium Specimens ◽  
Dichotomous Key

Identification aids for Cicer (Leguminosae, Cicereae) taxa are presented. A DELTA format dataset was generated for 42 Cicer taxa, on the basis of observation of 214 herbarium specimens and information obtained from the literature. Using the programs key, explore and confor, a dichotomous key, a tabular key, an interactive key and brief descriptions were produced and are presented.

A taxonomic revision of the Pyracantha crenulata complex (Rosaceae, Maleae)

Phytotaxa ◽  
2021 ◽  
Vol 478 (2) ◽  
pp. 239-252
Author(s):  
HUI-ZHE FENG ◽  
SU-JUAN WEI ◽  
LONG-YUAN WANG ◽  
SU-FANG CHEN ◽  
QIANG FAN ◽  
...  
Keyword(s):  
Morphological Characteristics ◽  
Taxonomic Revision ◽  
Population Level ◽  
Single Species ◽  
Herbarium Specimens ◽  
Leaf Margin ◽  
Morphological Variations ◽  
Dichotomous Key ◽  
Different Populations ◽  
Distinct Features

Pyracantha is naturally distributed from East Asia to the southeastern Europe regions, and seven species, including five endemic species, were recorded in China. Taxonomic problems within the genus persist, in which the identity of Pyracantha crenulata complex is not clear when referring to the existing species dichotomous key. P. crenulata complex contains three species: P. loureiroi, P. crenulata and P. fortuneana. Such incident might be due to the lack of proper analysis and evaluation of the characters at the population level when first described. To solve this problem, we sampled 48 populations of P. crenulata, examined 278 sheets of herbarium specimens, and conducted principal coordinate analysis (PCoA) on the morphological variations across different populations. Our findings indicated that P. crenulata complex does not display distinct, separated groups based on the morphological characteristics described in the existing species description, the shape of leaf, leaf margin, leaf apices and widest position of leaf are not distinct features for species delimitation in P. crenulata complex. As a result, we proposed that the P. crenulata complex should be recognized as a single species named P. crenulata.

scholarly journals Distribution and diversity of Fagaceae in Hidalgo, Mexico

2017 ◽  
Vol 95 (4) ◽  
pp. 660
Author(s):  
Susana Valencia-A. ◽  
Gabriel Flores-Franco ◽  
Jaime Jiménez-Ramírez ◽  
Mauricio Mora-Jarvio
Keyword(s):  
Taxonomic Revision ◽  
Morphological Description ◽  
Herbarium Specimens ◽  
Sierra Madre Oriental ◽  
Red Oaks ◽  
Dichotomous Key ◽  
Sierra Madre ◽  
The Family ◽  
Herbarium Data ◽  
High Diversity

<p><strong>Background:</strong> The family Fagaceae is one of the most important in temperate regions of the Northern hemisphere. <em>Fagus</em> and <em>Quercus</em> are distributed in Mexico, the former in Northeastern Mexico, while the latter reaches a high diversity in the Sierra Madre Oriental, Mexico. In Hidalgo state, located mainly in the Sierra Madre Oriental, knowledge of the Fagaceae diversity is still uncertain.<em></em></p><p><strong>Questions and/or hypothesis:</strong> We carried out a taxonomic revision of the genus and species of Fagaceae in Hidalgo state. We determined how many and which species are distributed in Hidalgo. We also present a morphological description and ecological characters of each one.</p><p><strong>Studied species:</strong> The species of the family Fagaceae</p><p><strong>Study site:</strong> Hidalgo state, Mexico.</p><p><strong>Method:</strong> We collected herbarium specimens, made field observations and reviewed herbarium data of Fagaceae specimens at FCME, INEGI, MEXU, ENCB, SLPM, HUMO, XAL and partly BH herbaria. In addition, we checked taxonomic literature and protologues of each species.</p><p><strong>Results: </strong>We found one species of <em>Fagus</em> and 43 of <em>Quercus</em>, 22 of which belong to the section <em>Quercus</em> (white oaks) and 21 to section <em>Lobatae</em> (red oaks). Morphological descriptions, altitudinal and geographical distribution, vegetation types of each species and a dichotomous key for species identification are presented. Illustrations and photographs of the species are also included.</p><p><strong>Conclusions:</strong> A high diversity of Fagaceae species is present in Hidalgo state. In Mexico, Hidalgo ranks in fifth place for oak species diversity, just behind Oaxaca (50 species), Puebla (50), San Luis Potosí (45), and Jalisco (45).<strong></strong></p>

scholarly journals The genus Sesuvium (Aizoaceae, Sesuvioideae) in the Southern Cone

Hacquetia ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 33-48
Author(s):  
Carlos R. Minué ◽  
Adriel I. Jocou
Keyword(s):  
Southern Cone ◽  
Field Investigation ◽  
New Combination ◽  
Herbarium Specimens ◽  
Southern Brazil ◽  
Dichotomous Key ◽  
Succulent Plants ◽  
Ecologic Studies

Abstract Sesuvium is a genus of 14 to 17 species of succulent plants, both annual and perennial, widely distributed in tropical and subtropical regions. The genus Sesuvium has not yet been studied in detail in the Southern Cone (Argentina, Southern Brazil, Chile, Paraguay and Uruguay), which has led to a misidentification of numerous specimens as S. portulacastrum. As part of the ongoing floristic, taxonomic and ecologic studies in Argentina, we revise the genus Sesuvium for the Southern Cone. This study is based on field investigation, examination of herbarium specimens, and revision of literature. The taxonomic treatments, maps of distribution, detailed descriptions, photographs, an illustration, a dichotomous key and a comparative table to differentiate the species of the genus Sesuvium occurring in the Southern Cone are presented. Finally, ecological, morphological, and taxonomic aspects of the species are discussed. The new combination of S. americanum (≡ Trianthema americanum Gillies ex Arn.; = S. verrucosum Raf.) is proposed. Lectotypes for three names are here designated (S. revolutifolium Vahl ex Willd.; S. revolutifolium Lam., and S. parviflorum DC.). Four species should be accepted for the Southern Cone: S. americanum, S. humifusum, S. mezianum and S. sessile. Furthermore, S. portulacastrum is excluded from the flora of the Southern Cone.

Revision of Hymenophyllum subg. Sphaerocionium (Hymenophyllaceae) in the Atlantic Forest Domain (Brazil), Based on Molecular and Morphological Evidence

2020 ◽  
Vol 45 (4) ◽  
pp. 707-748
Author(s):  
Felipe Gonzatti ◽  
Paulo G. Windisch ◽  
Fernando J. Scariot ◽  
Sergio Echeverrigaray ◽  
Mara R. Ritter
Keyword(s):  
Tropical Forests ◽  
Atlantic Forest ◽  
Sequence Comparison ◽  
Conservation Status ◽  
Neotropical Region ◽  
Morphological Data ◽  
Morphological Evidence ◽  
Herbarium Specimens ◽  
Dichotomous Key ◽  
Data Field

Abstract—Sphaerocionium is the largest subgenus of Hymenophyllum and occurs mainly in tropical forests of the Neotropical Region. Species of Hymenophyllum occurring in Brazil are poorly known due to difficulties in species delimitation and the absence of detailed studies. The aim of the present study was to present a synopsis of Hymenophyllum subg. Sphaerocionium in the Atlantic Forest domain, based on molecular and morphological data. Field and herbarium specimens were morphologically analyzed by stereomicroscopy, optical microscopy, and scanning electron microscopy. Phylogenetic relationships were evaluated by sequence comparison of the plastidial regions trnG-R and rps4-trnS. Morphological and phylogenetic evidence led to the recognition of 14 taxa throughout the Atlantic Forest, five of which are endemic. The taxonomy and nomenclature of Hymenophyllum in Brazil are revised and 19 new lectotypifications are proposed. The conservation status and geographical distributions of all species are updated and a dichotomous key is provided.

scholarly journals Graptopetalum sinaloensis (Crassulaceae), una nueva especie de Sinaloa, México

2020 ◽  
Author(s):  
Rito Vega Aviña ◽  
Francisco Delgado Vargas ◽  
Juan Fernando Pío León
Keyword(s):  
Deciduous Forest ◽  
Small Population ◽  
Morphological Data ◽  
Tropical Deciduous Forest ◽  
Herbarium Specimens ◽  
New Taxon ◽  
South Central ◽  
Dichotomous Key ◽  
Taxonomic Novelty ◽  
Continuous Work

RESUMEN:Antecedentes y Objetivos: El género Graptopetalum (Crassulaceae) incluye cerca de 20 especies de herbáceas rosetoides, con tallos ramificados o acaules, que se desarrollan en ambientes semiáridos y poco accesibles (montañas o barrancas) de México y Arizona. Como parte del trabajo continuo de los autores para documentar la flora de Sinaloa, en el presente artículo, se reporta una novedad taxonómica del género Graptopetalum.Métodos: En junio de 2013, en el municipio Culiacán, Sinaloa, México, se encontró una pequeña población de plantas del género Graptopetalum con inflorescencias secas, de la cual se colectaron algunos individuos para cultivar; florecieron en marzo. Especímenes con flor se colectaron en campo en la misma localidad en febrero de 2014. Al comparar el material de campo y el cultivado con material de herbario, literatura y cultivo de otras especies del género, se determinó que se trataba de una especie nueva para la ciencia.Resultados clave: Se describe el nuevo taxón Graptopetalum sinaloensis de la sección Graptopetalum, se discuten diferencias y similitudes con las especies más cercanas y se proporciona una clave dicotómica nueva y actualizada para las ocho especies de esta sección.Conclusiones: Graptopetalum sinaloensis es endémica del centro-sur de Sinaloa, México. Crece sobre paredes rocosas de arroyos y pies de cerros muy localizados, en poblaciones pequeñas y áreas reducidas de entre 5 y 10 m2. Se diferencia fácilmente de las otras especies de la sección Graptopetalum de Sinaloa por su flor pentámera, ya que G. rusbyi presenta 6-7 meros, y por su inflorescencia en panícula, porque G. occidentale presenta una cima. Además, la distribución geográfica no se traslapa con ninguna de ellas. Palabras clave: Byrnesia, flora de Sinaloa, Graptopetalum occidentale, Graptopetalum rusbyi, Sedum, selva baja caducifolia.ABSTRACT:Background and Aims: The genus Graptopetalum includes about 20 species of branched or acaulescent rosette herbs that grew in little accessible semiarid environments (mountains or ravines) of Mexico and Arizona. The authors have developed continuous work to document the flora of Sinaloa and the present article reports a taxonomic novelty in the genus Graptopetalum.Methods: In the municipality of Culiacán, Sinaloa, Mexico, a small population of plants of the genus Graptopetalum with dry inflorescences was found in June 2013, and some plants were collected and cultivated, they flowered in March. Plants with flowers were collected from the same location in February 2014. Morphological data of wild and cultivated material were compared with that of herbarium specimens, literature, and cultivated Graptopetalum species; and it was determined that collected material is a new species for science.Key results: The new taxon Graptopetalum sinaloensis, section Graptopetalum, is described. Its differences and similarities with the closest species are discussed. Moreover, a new and updated dichotomous key is provided for the eight species of this section.Conclusions: Graptopetalum sinaloensis is endemic to south-central Sinaloa, Mexico. It grows in very localized areas, on rocky walls of streams and at the foot of hills, forming small populations in reduced areas of 5 to 10 m2. Graptopetalum sinaloensis differs from other Graptopetalum species from Sinaloa by its 5-merous flowers vs. G. rusbyi with 6-7-merous ones, and by its paniculate inflorescence, vs. G. occidentale with cymose ones. Additionally, the geographical distribution of the three species does not overlap.Key words: Byrnesia, flora of Sinaloa,Graptopetalum rusbyi, Graptopetalum occidentale, Sedum, tropical deciduous forest.

scholarly journals New records and notes on the genus Phanerophlebia (Dryopteridaceae) in Honduras

2020 ◽  
Author(s):  
Johan David Reyes Chávez ◽  
Rina Fabiola Diaz Maradiaga ◽  
Hermes Leonel Vega Rodríguez
Keyword(s):  
New Records ◽  
First Record ◽  
Herbarium Specimens ◽  
Dichotomous Key ◽  
True Diversity ◽  
Molecular Studies ◽  
Effective Conservation

Abstract: Background and Aims:  The genus Phanerophlebia has been considered as enigmatic among pteridologists. Previous reviews have delimited a total of eight species, only two of which had been reported for Honduras. The objective of this study is to review the species in Honduras and to examine their ecology, habitat, and distribution.Methods: Between March 2018 and February 2019, we reviewed herbarium specimens of Phanerophlebia, and made trips and new collections from previously reported locations in order to understand better the ecology, habitat, and distribution of the Honduran species.Key results: We document the first record for Honduras of Phanerophlebia macrosora and the rare hybrid P. juglandifolia × macrosora. A dichotomous key was constructed for the species reported for the country. Conclusions: Molecular studies of the Honduran species are needed, as well as the effective conservation of the areas where they can be found. Revisions of pteridophytes groups and additional surveys are still necessary to better understand the true diversity of Honduras. 

Bartholomew Sulivan and early watercolours of Falkland Islands vegetation in the National Botanic Gardens, Dublin

1986 ◽  
Vol 13 (2) ◽  
pp. 155-163
Author(s):  
D. M. MOORE ◽  
M. J. P. SCANNELL
Keyword(s):  
Falkland Islands ◽  
Herbarium Specimens ◽  
Botanic Gardens

Three hitherto undocumented watercolours in the possession of the National Botanic Gardens, Dublin, are found to depict botanically interesting views of Falkland Islands' vegetation and an historically important painting of Port Louis about 1842, when it was the capital of the archipelago. From the evidence available it seems clear that these paintings were prepared by either Bartholomew J. Sulivan or his wife during a surveying voyage to the Falkland Islands in 1842–43, when he commanded the brig Philomel. Some associated herbarium specimens seem to have been collected by B. J. Sulivan during 1838 when he visited the Falkland Islands as Lieutenant aboard the surveying ketch Arrow.

Archibald Menzies's visit to Isla del Coco, January 1795

2013 ◽  
Vol 40 (1) ◽  
pp. 149-156 ◽  
Author(s):  
E. Charles Nelson
Keyword(s):  
Type Specimen ◽  
Herbarium Specimens ◽  
Scientific Collections

Archibald Menzies landed twice at Chatham Bay, Isla del Coco, in January 1795. A small number of his herbarium specimens are extant, including the type specimen of Callicosta rugifolium (Bryophyta; Daltoniaceae) and perhaps also that of Octoea insularis (Angiospermae; Lauraceae), indicating that he was probably the first to make scientific collections on the island.

Correspondence between Adolphe Brongniart and Robert Schomburgk: trading natural history collections for honours

2002 ◽  
Vol 29 (3) ◽  
pp. 333-336
Author(s):  
PIOTR DASZKIEWICZ ◽  
MICHEL JEGU
Keyword(s):  
Nineteenth Century ◽  
Natural History ◽  
Dominican Republic ◽  
Southeast Asia ◽  
Herbarium Specimens ◽  
British Guiana ◽  
Natural History Collections ◽  
History Of ◽  
Source Of Information ◽  
German Naturalist

ABSTRACT: This paper discusses some correspondence between Robert Schomburgk (1804–1865) and Adolphe Brongniart (1801–1876). Four letters survive, containing information about the history of Schomburgk's collection of fishes and plants from British Guiana, and his herbarium specimens from Dominican Republic and southeast Asia. A study of these letters has enabled us to confirm that Schomburgk supplied the collection of fishes from Guiana now in the Laboratoire d'Ichtyologie, Muséum National d'Histoire Naturelle, Paris. The letters of the German naturalist are an interesting source of information concerning the practice of sale and exchange of natural history collections in the nineteenth century in return for honours.

Distribution and chromosome number of Sonchus palustris in Slovakia

2020 ◽  
Vol 62 (1-2) ◽  
pp. 7-21
Author(s):  
M. Dudáš ◽  
P. Eliáš jun. ◽  
D. R. Letz ◽  
Z. Bártová ◽  
V. Kolarčik
Keyword(s):  
Chromosome Number ◽  
Red List ◽  
Herbarium Specimens ◽  
Distribution Map ◽  
Literary Sources ◽  
Different Types ◽  
New Localities ◽  
Recent Version

The distribution of Sonchus palustris in Slovakia was studied using herbarium specimens and literary sources. The herbarium studies, supplemented with targeted field search in the years 2015–2018, revealed 61 new localities and confirmed many other older locations. The species has been recorded in 19 phytogeographical districts and sub-districts of Slovakia. Most of the records are concentrated in the Podunajská nížina lowland in SW Slovakia and in the Ipel'sko-rimavská brázda region in southern Slovakia. Our results showed that the species is relatively common in different types of wetlands and its re-evaluation in the recent version of the Slovak red list is not needed. Chromosome number data for two new populations in eastern Slovakia (both 2n = 18) were counted. The distribution map is given.

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