Search results for " identification key"

showing 3 items of 3 documents

Multivariate morphometric analysis of the Stipa turkestanica group (Poaceae: Stipa sect. Stipa)

2015

Based on numerical analyses of macromorphological characters (cluster analysis, principal coordinate analysis and principal component analysis), scanning electron microscopy observation of lemma and lamina micromorphology, as well as field observations, five taxa belonging to the Stipa turkestanica group have been recognized in the mountain area of Central Asia. They are S. turkestanica subsp. turkestanica, S. turkestanica subsp. trichoides, S. macroglossa subsp. macroglossa, S. macroglossa subsp. kazachstanica and S. kirghisorum. As a result of this study, we propose one new combination, S. macroglossa var. pubescens, and designate lectotypes for S. turkestanica subsp. trichoides and S. ma…

0106 biological sciencesnumerical analysisStipa turkestanicaIdentification keyPlant Sciencemicromorphology010603 evolutionary biology01 natural sciencesLemma (botany)identification keyBotanydistributionTypificationтаксоныStipeaeNomenclatureEcology Evolution Behavior and SystematicsMiddle Asiabiologybiology.organism_classificationStipeaeTaxonnomenclatureStipaковылевыеtypificationDistribution ; Identification key ; Micromorphology ; Middle Asia ; Nomenclature ; Numerical analysis ; Stipeae ; Typification010606 plant biology & botanyPlant Systematics and Evolution
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The genusThymus(Lamiaceae) in Sicily

2015

An update on the taxonomy and geographic distribution of the genus Thymus in Sicily is given. This study is based on literature, herbarium and field investigations. In total, five taxa belonging to Thymus sect. Serpyllum (Th. richardii subsp. nitidus, Th. longicaulis and Th. praecox subsp. parvulus) and Th. sect. Hyphodromi (Th. spinulosus and Th. paronychioides) occur in Sicily. For each one, information about taxonomy, habitat, phenology, chromosome number and distribution are provided. Furthermore, the name Thymus pedicillatus Lojac. is here typified. Finally, an analytical key for the identification of the studied taxa is proposed.

Chromosome numberbiologyPhenologySettore BIO/02 - Botanica SistematicaEndemics identification key Mediterranean nomenclature taxonomy typificationZoologyPlant Sciencebiology.organism_classificationGeographic distributionTaxonHerbariumSettore BIO/03 - Botanica Ambientale E ApplicataBotanyLamiaceaeTaxonomy (biology)Ecology Evolution Behavior and SystematicsPlant Biosystems - An International Journal Dealing with all Aspects of Plant Biology
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Siguiendo el ejemplo fenicio: colonización del Mediterráneo occidental por Spirobranchus cf. tetraceros (Annelida: Serpulidae)

2020

A newly established population of the fouling polychaete Spirobranchus cf. tetraceros is reported from the western Mediterranean (Valencia Port). Despite previous intensive surveys, this is the first record for the taxon in the Iberian Peninsula. Molecular analyses revealed that S. cf. tetraceros from Valencia are genetically identical to specimens from Heraklion, Crete, but different from those collected in the Red Sea and S. tetraceros sensu stricto from the type locality in Australia. Mediterranean and Red Sea S. cf. tetraceros form a well-supported monophyletic clade but are clearly distinct from New South Wales specimens of S. tetraceros. Our new molecular evidence supports the hypothe…

cryptic species; ports; shipping; biological invasions; polychaetes; cytochrome b; identification keyespecies crípticas; puertos; tráfico marítimo; invasiones biológicas; poliquetos; citocromo b; clave de identificaciónScientia Marina
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