Foliar architecture of some members of the tribe Senecioneae (Asteraceae) with a key for identification of the Mexican genera

Phytotaxa ◽  
2018 ◽  
Vol 364 (2) ◽  
pp. 136
Author(s):  
ALICIA ROJAS-LEAL ◽  
TERESA TERRAZAS ◽  
JOSÉ LUIS VILLASEÑOR
Keyword(s):  
Identification Key ◽  
Leaf Architecture ◽  
Leaf Venation ◽  
Generic Rank ◽  
Secretory Canals

The foliar architecture of 18 genera (Barkleyanthus, Digitacalia, Erechtites, Nelsonianthus, Packera, Pentacalia, Pippenalia, Pittocaulon, Psacaliopsis, Psacalium, Pseudogynoxys, Robinsonecio, Roldana, Senecio, Telanthophora, Tetradymia, Villasenoria and Werneria) of the tribe Senecioneae (Asteraceae) distributed in Mexico is described. The aim was to identify leaf characters to be used in the taxonomy and phylogenetics of the tribe, as well as a source to identify at the generic rank the genera distributed in Mexico. More than 400 specimens were revised and several leaves were cleared to analyze leaf venation patterns. Four patterns of primary venation (actinodromous suprabasal, paralelodromous, pinnate and radiate-palmate) and five patterns of secondary venation (brochidodromous, weak-brochidodromous, craspedodromous, mixed-craspedodromous and festooned-semi-craspedodromous) were identified. Terminal tracheids were observed only in veinlets of Pentacalia, Pseudogynoxys and Werneria. In addition, secretory canals and crystals occurred in several genera. Foliar architecture showed to be a useful tool to identify genera, an identification key based mostly on leaf architecture characters is provided.

scholarly journals Leaf architecture of Rubiaceae Juss. from caatinga vegetation in Brazil

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Mirella Priscila de Souza Lima ◽  
Adriana Soares ◽  
José Lucas Ribeiro de Sousa ◽  
Márcia Santos Carvalho ◽  
Jorge Marcelo Padovani Porto ◽  
...  
Keyword(s):  
Reproductive Traits ◽  
Leaf Architecture ◽  
Leaf Venation ◽  
Caatinga Vegetation ◽  
Taxonomic Groups ◽  
Fifth Order ◽  
Comprehensive Studies

Abstract: The study and characterization of leaf venation plays a key role in the recognition of taxonomic groups that have been identified mainly based on reproductive traits. This study aimed at characterizing the pattern of leaf venation of Rubiaceae, recognizing individual characters among the taxa of this group and testing the use of leaf architecture as a taxonomic tool capable of providing vegetative and diagnostically characteristics between species. Leaves of 14 species distributed in eight genera from Rubiaceae were diaphanized and classified. The study area is located in Área de Proteção Ambiental Serra Branca/Raso da Catarina, Bahia State, Brazil. The characterization of secondary veins, including type, spacing and number of pairs, third veining patterns, fourth and fifth order, and the conformation of the areola were useful to delimit taxa when used together, providing subsidies to more comprehensive studies.

SPECIES, HOST RANGE, AND IDENTIFICATION KEY OF WHITEFLIES OF BOGOR AND SURROUNDING AREA

2019 ◽  
Vol 18 (2) ◽  
pp. 127
Author(s):  
Purnama Hidayat ◽  
Denny Bintoro ◽  
Lia Nurulalia ◽  
Muhammad Basri
Keyword(s):  
Host Range ◽  
Host Plants ◽  
Ornamental Plants ◽  
Identification Key ◽  
Agricultural Crops ◽  
Surrounding Area ◽  
Aleurodicus Dispersus ◽  
Agricultural Plants ◽  
Surrounding Areas ◽  
Forest Plants

Species identification, host range, and identification key of whiteflies of Bogor and surrounding area. Whitefly (Hemiptera: Aleyrodidae) is a group of insects that are small, white, soft-bodied, and easily found on various agricultural crops. Whitefly is a phytophagous insect; some species are important pests in agricultural crops that can cause direct damage and can become vectors of viral diseases. The last few years the damage caused by whitefly in Indonesia has increased. Unfortunately, information about their species and host plants in Indonesia, including in Bogor, is still limited. Kalshoven, in his book entitled Pest of Crops in Indonesia, published in the 1980s reported that there were 9 species of whitefly in Indonesia. The information on the book should be reconfirmed. Therefore, this study was conducted to determine whitefly species and its host plants in Bogor and its surroundings. Whiteflies is identified based on the ‘puparia’ (the last instar of the nymph) collected from various agricultural plants, ornamental plants, weeds, and forest plants. A total of 35 species of whiteflies were collected from 74 species and 29 families of plants. The collwcted whiteflies consist of four species belong to Subfamily Aleurodicinae and 31 species of Subfamily Aleyrodinae. The most often found whitefly species were Aleurodicus dispersus, A. dugesii, and Bemisia tabaci. A dichotomous identification key of whiteflies was completed based on morphological character of 35 collected species. The number of whitefly species in Bogor and surrounding areas were far exceeded the number of species reported previously by Kalshoven from all regions in Indonesia.

Crepis alpina en España. Crepis alpina in Spain

2013 ◽  
Vol 38 ◽  
pp. 229-231
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano
Keyword(s):  
Iberian Peninsula ◽  
Key Words ◽  
Balearic Islands ◽  
Identification Key ◽  
New Combinations ◽  
Key Words Identification ◽  
Palabras Clave

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.

Crepis sect. Lepidoseris sensu Babcock en la Península Ibérica y Baleares. Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands

2013 ◽  
Vol 38 ◽  
pp. 231-240 ◽  
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano
Keyword(s):  
Iberian Peninsula ◽  
Key Words ◽  
Balearic Islands ◽  
Identification Key ◽  
New Combinations ◽  
Key Words Identification ◽  
Palabras Clave ◽  
Península Ibérica

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.

Review of the genus Astragalus section Helmia (Fabaceae)

2019 ◽  
pp. 120-131
Author(s):  
M. S. Knyazev
Keyword(s):  
Identification Key ◽  
The Other ◽  
Taxonomic Review ◽  
Narrow Scope ◽  
A Priority ◽  
Astragalus Sect

A taxonomic review of species and intraspecific taxa of the Astragalus L. section Helmia Bunge is presented. We treat the section Helmia in a traditional, narrow scope, including only 9 species and subspecies: A. helmii Fisch. ex DC., A. tergeminus (Knjaz., Kulikov et E. G. Philippov) Knjaz., A. permiensis C. A. Mey. ex Rupr., A. depauperatus Ledeb. (= A. chakassiensis Polozhij), A. kasachstanicus Golosk. subsp. kasachstanicus, A. kasachstanicus subsp. coloratus Knjaz., A. gregorii B. Fedtsch. et Basil. (= A. tuvinicus Timokhina), A. heptapotamicus Sumnev., A. ionae Palib. ex Gontsch. et Popov. With regard to the other 16 species of sect. Helmia in its widest sense, as accepted in the monograph by D. Podlech and Sh. Zarre (2013), we believe it more correct to attribute them to other sections. The rank of A. helmii var. tergeminus Knjaz., Kulikov et E. G. Philippov is raised to the species, A. tergeminus (Knjaz., Kulikov et E. G. Philippov) Knjaz. It is shown that A. gregorii is a priority name of A. tuvinicus. The epitype of A. permiensis C. A. Mey. ex Rupr. is designated. An identification key and a map of distribution for all species and subspecies of Astragalus sect. Helmia are presented.

The first record of Gyalideopsis helvetica (Graphidaceae, lichenized Ascomycota) for Russia from the southern part of Lake Baikal Region

2015 ◽  
Vol 49 ◽  
pp. 282-288 ◽  
Author(s):  
I. N. Urbanavichene
Keyword(s):  
Lake Baikal ◽  
Baikal Region ◽  
First Record ◽  
Identification Key ◽  
Lake Baikal Region ◽  
First Time

Until recently only two species of Gyalideopsis (G. piceicola and G. alnicola) were known from very few localities in Russia. Gyalideopsis helvetica is reported for the first time for Russia from the southern part of Baikal area (KhamarDaban Range, Baikalsky Zapovednik). Description of the collected specimen and its comparison with the literature data are provided; morphology, ecology and distribution of G. helvetica are discussed. The hyphophores of G. helvetica are recorded and described for the first time. An identification key to Gyalideopsis species known in Russia is provided.

Millennial zoological mystery of medieval Persian scientists

2019 ◽  
Vol 28 (2) ◽  
pp. 201-227
Author(s):  
I.A. Gavrilov-Zimin ◽  
A.S. Kurochkin
Keyword(s):  
Central Asia ◽  
Identification Key ◽  
Native People ◽  
Scale Insects ◽  
Southern Iran ◽  
Biological Characters ◽  
Medieval Text ◽  
Red Dye ◽  
First Time ◽  
Salix Spp

Great medieval scientist-polymath Abu Rayhan Al-Beruni (973–1050) wrote in his book “Pharmacognosy” about some kind of “worms” inhabiting willows in Azerbaijan and Southern Iran and used by native people for producing of a red dye. It was unclear during one thousand years which organisms Al-Beruni noted as those dye-producing “worms”. Some modern authors even suggested that the relevant medieval text was partly erroneous. To the contrary, in the present paper we, for the first time, consider some species of the felt scale insects (Coccinea: Eriococcidae) as the organisms, which have probably been used for the production of the red dye in the medieval countries of Western and Central Asia. These insects are several species from two closely related genera Acanthococcus Signoret, 1875 and Gossyparia Signo­ret, 1875. The review of biological characters, identification key, new figures and colour photographs are provided for the species of Acanthococcus and Gossyparia associated with Salix spp. in the Asiatic Region. Acanthococcus turanicus Matesova, 1967, syn. nov. is placed in synonymy with A. salicis (Borchsenius, 1938), and A. altaicus Matesova, 1967, syn. nov. is placed in synonymy with A. spiraeae Borchsenius, 1949. Earlier discovered synonymy of A. melnikensis (Hodgson et Trencheva, 2008) with A. aceris Signoret, 1875 is discussed. Some other dye-producing scale insects and their pigments are also briefly considered.

System of generic groups in mealybugs (Homoptera: Coccinea: Pseudococcidae)

2015 ◽  
Vol 24 (2) ◽  
pp. 236-259 ◽  
Author(s):  
I.A. Gavrilov-Zimin
Keyword(s):  
Taxonomic Revision ◽  
Generic Rank ◽  
The World ◽  
Generic Groups ◽  
World Fauna

The paper provides a brief conspectus of the system of morphological generic groups, elaborated earlier by the author basing on the total taxonomic revision of Palaearctic mealybugs. Here the system is complemented by the analysis of all 249 genera of the world fauna. Borders of two generic groups are reconsidered and two else groups (with mainly Oriental and Australasian genera) are included in the system. Main taxonomic characters of generic rank are discussed and illustrated.

A new species of Platymystax (Hymenoptera: Ichneumonidae: Cryptinae: Hemigasterini) from Mexico

2017 ◽  
Vol 26 (2) ◽  
pp. 282-286
Author(s):  
D.R. Kasparyan ◽  
M. López-Ortega
Keyword(s):  
New Species ◽  
New World ◽  
Identification Key ◽  
Preliminary Identification ◽  
Mexican State ◽  
The World ◽  
A New Species ◽  
World Fauna

A new species of the tribe Hemigasterini, Platymystax xalapa sp. nov., is described from the Mexican State of Veracruz. It is the first species of the genus described from the New World. A preliminary identification key to all known seven species of Platymystax of the world fauna is provided.

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