Lamiaceae is an important plant family that inhabits various ecosystems and has great diversity, is considered a cosmopolitan plant and has an important role in pharmaceutical and cosmetic sciences ...because of its essential oil content in almost every species. This research was focused on identify plant species from the Lamiacecae family that potential as essential oil producer in West Sumatra with their distribution based on ANDA Herbarium specimens. Data was collected use the herbarium method and literature study to determine the potential of each species. The results showed in the ANDA Herbarium were 45 species from 20 genera, which dominated by species that have the potential to produce essential oils as many as 23 species, followed by species that had not explore for their essential oil content as 11 species and commercial species, 9 species. Species from most Lamiaceae family were potentially as essential oil producer found in Padang city administrative area. Keywords: Cosmopolitan, genera, commercial, distribution, potential
Morphology and DNA sequences are used to describe a new species of New Guinea Worm-Eating Snake (Elapidae: Toxicocalamus Boulenger, 1896) from Papua New Guinea: Toxicocalamus goodenoughensis n. sp., ...endemic to Goodenough Island of the D’Entrecasteaux Archipelago. Toxicocalamus goodenoughensis morphologically most closely resembles T. pachysomus Kraus, 2009, but it differs by having undivided nasal scales completely surrounding nares (vs. divided), pale yellow markings on supralabials (vs. purple), a yellow nape band (vs. unbanded uniform nape), a dark gray-brown dorsum (vs. medium brown), dark brown mottling on yellow ventral scales, darkening toward cloaca (vs. uniform light brown), and >175 ventral scales. Phylogenetically, T. goodenoughensis is sister to another D’Entrecasteaux endemic, T. nigrescens Kraus, 2017. Coalescent-based species delimitation found the new species to be uniquely delimited from all other taxa (n = 13) in all combinations of parameters settings. Micro-computed tomography (μCT) scanning revealed the presence of distinctive variation in postfrontal bone morphologies, with three morphotypes exhibited within the genus: directed forward, directed lateral/perpendicular to cranium, and absent. Toxicocalamus goodenoughensis was found to have a sickle-shaped and directed forward postfrontal bone. The directed forward morphotype was shared by T. loriae clade 3 (sensu Strickland et al., 2016), T. mintoni, T. nigrescens, and T. pachysomus. Our work is the most comprehensive phylogenetic analysis of the genus and the first study using μCT scanning for comparative morphology of Toxicocalamus. We also provide an updated dichotomous key for the genus.
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An account of the discovery, taxonomy and cultivation of Gymnospermium darwasicum is provided. Along with a supplement of Gymnospermium illustrations and studies published since Stearn's ...Monograph (2002).
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A history of over 400 years of cultivation and taxonomy of Leontice leontopetalum is provided. Statements that it is native to Italy still require confirmation.
ABSTRACT This paper presents the results obtained from the analysis of the zooarchaeological bird assemblages of the Pizzulic 2, Pizzulic 3 and Pizzulic 4 sites, located in the Englefield island, ...whose radiocarbon dates show occupations from the Middle Holocene to the first millennium of our era. The analysis of the avifauna made it possible to determine the existence of continuity in the exploitation and selection of birds for these three sites, exploiting a reduced taxonomic range and a selection focused mainly on the Phalacrocoracidae Family. Zooarchaeology, bird exploitation, middle and late Holocene, marine hunter-gatherers, taxonomic diversity. INTRODUCCIÓN Las estrategias de subsistencia en contextos de cazadores-recolectores marinos en los sitios del estrecho de Magallanes y seno Otway se observan, en general, dominadas por una especialización en la caza marina, principalmente de presas de mayor tamaño como pinnipedos (Emperaire & Laming, 1961; Legoupil, 1997; Legoupil et al. 2011; San Román, 2013; San Román et al. 2016), que presentan una mayor biomasa consumible y un elevado aporte de proteínas y grasas.
Taxonomy is as old as the human language; it arose from the need to differentiate and name edible as well as poisonous plants and to be able to pass on this knowledge to the next generation ...
El complejo Myriopteris lendigera se encuentra integrado por las especies: M. lendigera, M. marsupianthes y M. mexicana, que se caracterizan por su gran variación morfológica, lo que complica ...establecer límites claros entre estos taxones. Por ello, el objetivo del presente trabajo fue analizar características morfológicas y anatómicas con la finalidad de definir su status taxonómico. Se midieron 30 características morfológicas y 12 anatómicas, tanto en ejemplares botánicos recolectados en campo (en cuatro entidades de la República Mexicana) como en especímenes provenientes de diez herbarios mexicanos. Con los datos obtenidos se estimaron estadísticos descriptivos y se realizaron diferentes análisis: de varianza, de agrupamiento (CA), de componentes principales (ACP) y discriminante (AD). Las características anatómicas no difirieron significativamente entre especies, pero las morfológicas sí. La longitud del pecíolo, ancho del pseudoindusio, longitud de la fronda y ancho de la segunda pinna, fueron las variables que permitieron diferenciar entre sí a las especies. El porcentaje de varianza explicada por los datos fue alto y se relacionó con los dos primeros componentes (65.99%) en el ACP o funciones discriminantes (100%) en el AD. Las distancias de Mahalonobis corroboraron que la variación en las características morfológicas fue significativa entre taxones. Con base en estos resultados, así como en la agrupación de los individuos en los diagramas de árbol y de ordenación, se sugiere que M. lendigera, M. marsupianthes y M. mexicana son especies válidas o entidades definidas, con caracteres morfológicos cualitativos y cuantitativos únicos, que permiten su identificación. The complex Myriopteris lendigera is composed of three species, M. lendigera, M. marsupianthes and M. mexicana, which are characterized by a high degree of morphological variation, making it a complex task to establish clear boundaries between these taxa. The objective of this study was to analyze the morphological and anatomical characteristics of this complex in order to define its taxonomic status. A total of 30 morphological and 12 anatomical characteristics were measured, both in botanical specimens collected in the field (in four Mexican entities) and in specimens from ten Mexican herbaria. With the data obtained, descriptive statistics were estimated and different analyses were performed: variance, clustering (CA), principal components (PCA), and discriminant (AD). The anatomical characteristics did not differ significantly among species, but the morphological ones did. The length of the petiole, width of the false indusium, length of the frond, and width of the second pinna, were the variables that allow differentiation among species. The percentage of variance explained by the data was high and related to the first two components (65.99%) in ACP or discriminant functions (100%) in AD. The Mahalonobis distances indicated that the variation in the selected characteristics is significant between the taxa. Based on these results and on the clustering of the taxa in ordination diagrams, it is suggested that M. lendigera, M. marsupianthes, and M. mexicana are valid species or defined entities, with unique qualitative and quantitative morphological features that enable their identification.