scholarly journals The Hintons’ legacy to the knowledge of the flora of Mexico

2019 ◽  
Vol 97 (3) ◽  
pp. 447
Author(s):  
George S. Hinton ◽  
José Luis Villaseñor ◽  
Enrique Ortiz

<p><em>Background</em>: The Hinton family comprises three generations of plant collectors that have made an important contribution to the knowledge of the flora of Mexico. They have collected in 13 Mexican states and have provided material for the description of 8 genera and about 555 species new to science.</p><p><em>Question</em>: What is the contribution of the collections of the Hintons to our knowledge of the flora of Mexico? Where was their main collecting effort and how many species have been recorded?</p><p><em>Species study</em>: Vascular plants</p><p><em>Study site</em>: Mexico</p><p><em>Method</em>: Different national and foreign databases were consulted and a list of species collected by the Hintons was obtained. The records were reviewed to eliminate synonymy and a complete list of species and their distribution by states was compiled.</p><p><em>Results</em>: A total of 28,947 records were obtained and 25,717 of them were identified to species level. In addition to the family's collection, the herbaria with the largest number of records are LL-TEX, K, IEB, and MEXU. The records come from about 2,752 different collecting localities throughout Mexico and account for 5,730 species, 1,573 genera, and 233 families.</p><p><em>Conclusions</em>: Many of the specimens collected by the Hintons come from areas that are still  underexplored today. The contribution of the Hinton family to the knowledge of the flora of Mexico represents an important legacy and their collections constitute an enduring source of information for people interested in the flora of Mexico<em>.</em></p>

Phytotaxa ◽  
2020 ◽  
Vol 461 (4) ◽  
pp. 275-285
Author(s):  
EARL CELESTINO DE OLIVEIRA CHAGAS ◽  
JAMES LUCAS DA COSTA-LIMA

The taxonomy of Eriocaulon modestum and its infraspecific taxa is revised. Eriocaulon modestum var. brevifolium and E. modestum f. viviparum are accepted as distinct taxa and raised to the species level under the names E. candango E.C.O.Chagas and E. ibeji E.C.O.Chagas, respectively. We present a complete list of synonyms and examined specimens of E. modestum and a comparative morphological table for the three species. In addition, we designate lectotypes for the names E. modestum and its synonyms E. burchellii, E. glaziovii, E. melanolepis, and E. proximum.


2020 ◽  
Vol 8 ◽  
Author(s):  
Elizabeth Joyce ◽  
Kevin Thiele ◽  
Ferry Slik ◽  
Darren Crayn

Background The Sunda-Sahul Convergence Zone, defined here as the area comprising Australia, New Guinea, and Southeast Asia (Indonesia to Myanmar), straddles the Sunda and Sahul continental shelves and is one of the most biogeographically famous and important regions in the world. Floristically, it is thought to harbour a large amount of the world’s diversity. Despite the importance of the area, a checklist of the flora has never before been published. Here we present the first working checklist of vascular plants for the Sunda-Sahul Convergence Zone. The list was compiled from 24 flora volumes, online databases and unpublished plot data. Taxonomic nomenclature was updated, and each species was coded into nested biogeographic regions. The list includes 60,415 species in 5,135 genera and 363 families of vascular plants. New information This is the first species-level checklist of the region and presents an updated census of the region’s floristic biodiversity. The checklist confirms that species richness of the SSCZ is comparable to that of the Neotropics, and highlights areas in need of further documentation and taxonomic work. This checklist provides a novel dataset for studying floristic ecology and evolution in this biogeographically important region of very high global biodiversity.


2018 ◽  
Vol 6 ◽  
pp. e27032 ◽  
Author(s):  
Flavio Carmo ◽  
Rubens da Mota ◽  
Luciana Kamino ◽  
Claudia Jacobi

Ironstone ranges are considered hotspots for higher plants α and β diversity. The lack of studies and the intense degradation of the ironstone ranges, due to mining, motivated us to compile, for the first time, a list of vascular plants collected on iron-rich derived substrates from ancient landscape of south-eastern Brazil. All existing records in the Brazilian Virtual Herbarium of Flora and Fungi for each of the 43 municipalities containing ironstone ranges were downloaded, resulting in 17,954 vouchers identified to the species level. We found 2,933 species belonging to 160 families and 818 genera. For the first time, we identified 148 species mentioned in endangered flora official lists and 48 narrow endemic species. Collecting efforts must still be supported to properly sample the vegetation since, for 143 sites, less than 10 records/site were found. This dataset will assist with the indication of dozens of plant species whose threat criteria must be urgently assessed to subsidise public policies on the use and conservation of the Brazilian flora.


2021 ◽  
Vol 944 (1) ◽  
pp. 012033
Author(s):  
I G W D Dharmawan ◽  
D G Bengen ◽  
I Setyobudiandi ◽  
B Subhan ◽  
I Verawati ◽  
...  

Abstract Nudibranch has high species diversity with complex morphological characters and is challenging to identify at the species level. The lack of knowledge about nudibranchs makes it difficult to identify conventionally using morphological characters. This study aims to identify nudibranchs at the species level using the DNA barcoding method from the mitochondrial cytochrome oxidase 1 (CO1) gen. The results of DNA barcoding using the Cytochrome Oxidase I (COI) gene showed 18 species of 51 samples analyzed. The phylogenetic tree reconstruction revealed 11 main clades belonging to 11 genera. The genetic distance between and within species clearly shows the difference between individuals. Interspecific genetic distance shows the lowest value between species was found between Chromodoris annae and Chromodoris magnifica is 0.075, and the largest genetic distance observed between species Glossodoris rufomarginata and Tritonidae sp is 0.354. This study shows molecular analysis can be used to identify nudibranch up to species level, which will be a source of information in knowing the distribution and the genetic distance.


2020 ◽  
Vol 1 ◽  
pp. 155-161
Author(s):  
Iris de Ronde ◽  
Rense Haveman ◽  
Anja van der Berg ◽  
Tom van Heusden

In this paper we describe the historical background and contents of the DUMIRA vegetation plot database (GIVD-code EU-NL-003). It contains 13,046 relevés, collected between 1995 and 2018 at military ranges in the Netherlands, and it is updated regularly with new data. Historical circumstances led to the placement of military ranges at the most nutrient poor, dry, sandy soils, and as a result, the database is built up mainly by plots of Calluno-Ulicetea and Nardetea heathlands, Koelerio-Corynephoretea grasslands, and Quercetea robori-petraeae woodlands. These classes account for more than 50% of the database. Coastal communities (e.g. from the Juncetea maritimae and the Therosalicornietea) and scrubs (e.g. the Lonicero-Rubetea plicati and Salicetea arenariae) are other important sources. Notably, throughout the database, Rubus species are identified to species level. Although the DUMIRA database was initially used for management related vegetation mapping projects, the data gave rise to several more scientific studies and papers. Taxonomic reference: Van der Meijden (2005) for vascular plants; Van de Beek et al. (2014) for Rubus; Kleukers et al. (2004) for Orthoptera. Syntaxonomic reference: Mucina et al. (2016). Abbreviations: DUMIRA = Vegetation plot database of Dutch Military Ranges; GIVD = Global Index of Vegetation-plot Databases; MoD = Ministry of Defence.


2020 ◽  
Vol 6 (1) ◽  
pp. 82-86
Author(s):  
V.N. Ilyina ◽  

In the Samara region to date, there is a need for a closer study of lichen flora. So far, there is no complete list of species of lichens in the region, but only some local territories, often isolated from each other. Although attempts to study this group of organisms have been undertaken for a long time, this issue has not yet been finally resolved. A positive aspect is the publication of the “Identifier of lichens in the Samara region”. In the work of V.G. Tsurikova and E.S. Korchikova presented the original key for determining leafy, bushy and mucus species, accompanied by color photographs that facilitate this determination. The publication also contains a sufficient complete description of lichens (151 species).


Zootaxa ◽  
2012 ◽  
Vol 3323 (1) ◽  
pp. 1 ◽  
Author(s):  
PETR ŠÍPEK ◽  
DAVID KRÁL

Immature stages of holometabolous insects represent a useful source of information for phylogenetic studies. However,knowledge about immature stages of insects is generally poor. This paper presents a historical overview on the study ofimmature Cetoniinae and provides an up-to-date list of 194 so far described taxa at the species level. Most immature stagesare described for the Cetoniini. Larvae of Microvalgini, Taenioderini, and Phaediminini are unknown, while the larvae of Platygeniini need to be redescribed.


2001 ◽  
Vol 15 (3) ◽  
pp. 289-304 ◽  
Author(s):  
Marco Antônio Batalha ◽  
Waldir Mantovani

We studied a 1225 ha area, composed mainly of cerrado, in Santa Rita do Passa Quatro, São Paulo State, southeastern Brazil (21°36-38'S, 47°36-39'W). In three cerrado physiognomies (campo cerrado -- a wooded savanna, cerrado sensu stricto -- a woodland, and cerradão -- a tall woodland), we collected all vascular plants in reproductive stage, and identified them to species level. We found 360 species, representing 236 genera and 69 families. The richest families were: Asteraceae, Fabaceae, Poaceae, and Rubiaceae. The savanna physiognomies were richer than the forest one. The ratio between herbaceous and woody species was approximately 2:1. We analysed the whole flora and its two components separately, woody and herbaceous, comparing them with other disjunct cerrado areas. We obtained similarity values (Sørensen index) from 0.47 to 0.81, which showed that the 3 diversity of the cerrado was higher in the herbaceous component than in the woody one.


2021 ◽  
Author(s):  
Yi Wang ◽  
Lisa Gutbrod ◽  
Myriam Schmid ◽  
Laura Epp

&lt;p&gt;Lake sedimentary ancient DNA has become a recognized source of information on past biodiversity change, but our understanding of its distribution and taphonomy is still limited. Here we collected 40 surface sediment samples from Lake Constance in southern Germany and characterized sedimentary DNA (sedDNA) heterogeneity through four metabarcoding PCRs on general eukaryotes, vascular plants, cyanobacteria and copepods.&amp;#160; We observed the variability of overall sedDNA being strongly correlated with sediment sample geographical locations, although this pattern varies within taxonomic groups. Specifically, geographical coordination and water depth explain 10.7% variability of terrestrial vascular plant sedDNA distribution, but the distribution of copepods is patchy and not correlated with sampling locations. Out study indicates that sedDNA is not distributed uniformly across the lake but rather linked to the movement of lake water and the local presence of the organisms.&lt;/p&gt;


1981 ◽  
Vol 59 (11) ◽  
pp. 2326-2330
Author(s):  
David H. French

This symposium paper discusses materials and issues which have been infrequently addressed by ethnobotanists. The worth of familiar ethnobotanical research is not being challenged here, but rather possibilities for enlargement are being suggested. Some recent and potential research is described in the paper. The topics and questions covered include (1) available plants not used, or abandoned, by Native Americans; (2) "principles" of Native botany (other than the uses and names of vascular plants for food and medicine); (3) the relationship of ethnobotany to various (sub)disciplines, especially aspects of linguistics and the "anthropology" of knowledge" (perhaps a neologism); (4) Indian-defined plant entities (taxa) related by similarity, as well as by contrast and inclusion; (5) the occurrence of unnamed Indian taxa, especially on the lowest (cf. species) level; (6) medicines made from single plants versus mixtures, and panaceas versus specific cures; (7) ethnobotany as scholarly activity; (8) the possibility that an ethnobotanical perspective might link the interior of British Columbia with most of California in our thinking and in redrawn ecological and culture area maps.


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