查看更多>>摘要：Based on critical observations on herbarium specimens (including type material) and living plants in the wild, we demonstrate that Sanicula lamelligera (Apiaceae) is highly variable in character of basal leaves, branches of inflorescences, and character of fruits. We therefore accept some previous synonyms of this species, including S. ichangensis, S. lamelligera var. wakayamensis, S. orthacantha var. longispina, S. satsumana, and S. yunnanensis, and further reduce S. orthacantha var. pumila, and S. pengshuiensis to its synonymy. Lectotypification is proposed for S. lamelligera var. wakayamensis and S. orthacantha var. pumila.
Udovic, Marija GligoraKulas, AntonijaSusnjara, MirelaArapov, Jasna...
13页
查看更多>>摘要：The Krka River is located at Balkan Peninsula in the Dinaric region of Croatia and it is a typical groundwater-fed karst river characterized by an unusual phenomenon-tufa. Tufa designates porous CaCO3 deposits forming under specific physical and chemical conditions and hosting very diverse freshwater biota. Karst springs are considered one of the most diverse habitats for diatoms and are usually inhabited by specific diatom assemblages, which include the Krka spring zone. However, such habitats are particularly impacted by human activities, so previous studies have recently been conducted to raise awareness of the importance of karstic spring zones, especially because they are inhabited by specific and rare species. During the research at Krka River, samples were collected in the spring zone in May 2017, and the observations revealed the existence of a one Cymbopleura species characterized by slightly convex to almost linear valves, which are slightly protracted, broadly rounded and weakly dorsally bent at the apices. Based on detailed morphological analyses on light and scanning electron microscopy it appears that this population resembles two previously described taxa: C. rupicola var. minor Krammer and C. rupicola var. korana Krammer. Here we provide a more detailed description of the mentioned population under the new name Cymbopleura amicula stat. nov. et nom. nov. due to the significant differences from C. rupicola, together with a comparison with similar taxa in Cymbopleura.
查看更多>>摘要：Didymocarpus cordifolius, a new species of Gesneriaceae from southern Yunnan Province, China is described and illustrated. The new species is morphologically similar to D. silvarum and D. margaritae, but can be readily distinguished by its short petioles with both glandular and eglandular hairs, pale purple corolla, hairy anthers, and ovary and style of subequal length.
查看更多>>摘要：Themeda saxicola is an endemic perennial grass rediscovered after laps of 67 years from the Raisili hill (type locality) and Deomali hill, from the Eastern Ghats in the Koraput district of Odisha. The detailed description along with colour photographs of the habitats, habit and floral parts are provided for easy identification of the species. In addition, distribution map and IUCN threat category assessment are also provided.
查看更多>>摘要：We describe Phyllanthus chapadensis, a new phyllocladiferous species of the genus Phyllanthus probable endemic to the Chapada dos Veadeiros region, Goias, Brazil, in the Cerrado region. This region is located in Central Brazil with a high number of endemic Angiosperms, unique landscapes, and distinct and peculiar phytophysiognomies. The species described here belongs to Phyllanthus sect. Choretropsis, a Brazilian exclusive group of plants characterized by presenting phylloclades. The new species resembles P. spartioides and P. sarothamnoides, which occur in the Chapada Diamantina, Bahia, Northeastern Brazil, due to its upright shrubby habit, with thin and delicate phylloclades. However, it can be differentiated by the morphological characteristics of phylloclades and flowers. We present the main morphological distinctions between these species, distribution map, illustrations, flowering and fruiting seasons, and a proposal of the conservation status of the new species.
查看更多>>摘要：Primulina pingleensis, a new species from the limestone area of Guangxi, China is described and illustrated. The new species is similar to P. pseudoheterotricha and P. macrodonta, but can be easily distinguished from the latter two by its narrowly lanceolate calyx lobes, strongly laterally compressed corolla tube, deeply bilobed stigma and so on. Detailed morphological descriptions, photographs and taxonomic notes are provided here.
Soares, Arthur De SouzaHarley, Raymond MervynBarea Pastore, Jose FlorianoJardim, Jomar Gomes...
5页
查看更多>>摘要：Hyptis piranii, an endemic species from campos rupestres of Minas Gerais state, Brazil, was described as a member of H. sect. Polydesmia subsect. Oocephalus. After a number of sections and subsections of Hyptis had been raised to generic rank, this species became a member of the genus Oocephalus. Recent morphological analyses showed that, actually, the species is better treated as a member of Hyptis sect. Eriosphaeria. We provide a description of Hyptis piranii, as well as comments on its morphology and a plate showing key morphological features.
查看更多>>摘要：Timaviella Sciuto & Moro is a recently established cryptic genus of cyanobacteria separated from the morphologically close Leptolyngbya due to clear differences in the 16S rRNA gene sequence and the 16S-23S ITS region secondary structure. Conducting research on biological soil crusts in coastal ecotopes of Ukraine and Germany, we repeatedly observed thin filamentous cyanobacteria morphologically corresponding to the common terrestrial species Leptolyngbya edaphica (Elenkin) Anagnostidis & Komarek. Molecular data based on 16S rRNA gene sequence comparison of the original strains of the morphospecies indicated unambiguous assignment to the genus Timaviella. Based on this finding, we proposed the new nomenclatural combination Timaviella edaphica (Elenkin) O.M. Vynogr. & Mikhailyuk in our previous publication. Deeper molecular study of the four original strains which were morphologically identified as T. edaphica based on the 16S rRNA gene concatenated with the 16S-23S ITS region and 16S-23S ITS secondary structure analysis showed that they are not identical. Three of them (isolated from biocrusts of Black Sea coast and forest path near Kyiv, Ukraine) had high similarity both in 16S rRNA (99.7-100%) and 16S-23S ITS (99.8-100%) hence actually representing T. edaphica. The strain Us-6-3 isolated from biocrusts on sand dunes of Usedom Island in the Baltic Sea, Germany, differs both from original strains of T. edaphica and all published Timaviella species in 16S rRNA gene sequence identity, as well as in sequence and structure of the 16S-23S ITS region. Here we describe Timaviella dunensis sp. nov. and give an expanded description of T. edaphica based on morphological and molecular features. A tabular review of Timaviella species with data on their phenotypic and genotypic features, ecology and distribution is included.
查看更多>>摘要：A revision ofLanonia was carried out based on morphological data. Two hundred and eighteen herbarium specimens were examined and scored for 30 quantitative and 24 qualitative variables. Application of the Phylogenetic Species Concept to 13 preliminary species ofLanonia resulted in recognition of 19 phylogenetic species. Of these, six are recognized as new (L. honbaensis, L. honheoensis, L. kontumensis, L. montana, L. nuichuaensis, L. tenuisecta). Nomenclature, descriptions, and distribution maps are provided for all species. Images of the type specimens of all new species are provided as well as images of most qualitative variables.
NSTL
Magnolia Press