Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia

The molecular phylogeny of Miliusa (Annonaceae) is reconstructed, with 27 (of ca. 50) species included, using a combination of seven plastid markers (rbcL exon, trnL intron, trnL-F spacer, matK exon, ndhF exon, psbA-trnH spacer, and ycf1 exon) constituting ca. 7 kb. In addition, two new species of Miliusa are described from the Malesian area: M. butonensis sp. nov. from Buton Island, Indonesia and M. viridifl ora sp. nov. from Papua New Guinea. The former is included in the molecular phylogenetic analysis. The reconstructed phylogeny corresponds well to the informal morphological grouping proposed earlier. A revised key to 13 Austro-Malesian species of Miliusa is provided

Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia – Corrigendum

Corrigendum: The third author has been added to paper No. 54 (http://dx.doi.org/10.5852/ejt.2013.5

Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia – Corrigendum

Corrigendum: The third author has been added to paper No. 54 (http://dx.doi.org/10.5852/ejt.2013.5

Влияние иноязычных заимствований на коммуникативное ядро русского лексикона

Общеизвестно, что на земном шаре насчитывается около 5000 языков [7, с. 330]. Носителями этих языков являются представители разных культур и народностей. Все они имеют свои особенности и свою специфику, что является, как указывает А. А. Потебня, неотъемлемой составляющей существования человечества: «Если бы объединение человечества по языку и вообще по народности было возможно, оно было бы гибельно для общечеловеческой мысли, как замена многих чувств одним, хотя бы это одно было не осязанием, а зрением. Для существования человека нужны другие люди; для народности – другие народности

New Neolignans and a Phenylpropanoid Glycoside from Twigs of Miliusa mollis

From the twigs of Miliusa mollis Pierre, three new compounds including (2S,3S)-2,3-dihydro-2-(4-methoxyphenyl)-3-methyl-5-[1(E)-propenyl]benzofuran, (7S,8S)- threo-Δ8'-4-methoxyneolignan and tyrosol-1-O-β-xylopyranosyl-(1→6)-O-β-gluco-pyranoside were isolated, along with seven known compounds. Their structures were elucidated through analysis of their spectroscopic data

Orophea sichaikhanii (Annonaceae), a new species from southern Thailand, with a key to the species of Orophea in Thailand and notes on some species

Background and aims – Recent botanical expeditions in Ranong Province, southern Thailand yielded unidentifiable collections of Orophea subgenus Sphaerocarpon (Annonaceae). To elucidate the taxonomic status of these collections, detailed morphological examinations and comparisons with morphologically similar species are made.Material and methods – This study followed standard practices of herbarium taxonomy. Specimens of Orophea spp. in BKF, CMUB, L, and QBG herbaria were studied. Digitised type specimens deposited in BM, E, G, K, and L herbaria were accessed. A stereo microscope was used for morphological observations and measurements. Key results – A new species Orophea sichaikhanii is described and illustrated. The Peninsular Malaysian O. hastata and O. kingiana are the species most similar to the new species. Orophea sichaikhanii is different from O. hastata in several traits: indumentum on ovaries and young twigs; length of pedicels, inner petals, and inner petal claw; and inner petal colour and tip. The new species differs from O. kingiana by having dissimilar colour and tip of inner petals; lower number of stamens and carpels per flower; and glabrous ovaries. Additionally, a key to the species of Orophea in Thailand and notes on certain species are provided

A New Benzophenone C-Glucoside and Other Constituents of Pseuduvaria fragrans and Their α-Glucosidase Inhibitory Activity

Phytochemical investigations of the leaves and stems of Pseuduvaria fragrans led to the isolation of a new benzophenone C-glucoside named pseuduvarioside (1), together with six known compounds including (−)-guaiol (2), (+)-isocorydine (3), cyathocaline (4), isoursoline (5), N-trans-coumaroyltyramine (6), and N-trans-feruloyltyramine (7). Their structures were characterized by NMR spectroscopy and mass spectrometry. All of the isolates were evaluated for inhibitory activity against the enzyme α-glucosidase. N-trans-coumaroyltyramine and N-trans-feruloyltyramine showed higher activity than the drug acarbose. Kinetic studies revealed that both tyramine-derived amides were uncompetitive inhibitors of the enzyme

Three New Species of \u3ci\u3eTrivalvaria\u3c/i\u3e (Annonaceae) from Thailand, with a Key to the Thai Species

Johnson, David M., Chaowasku, Tanawat, Murray, Nancy A., Chalermglin, Piya (2021): Three new species of Trivalvaria (Annonaceae) from Thailand, with a key to the Thai species. Phytotaxa 489 (1): 79-86, DOI: 10.11646/phytotaxa.489.1.6, URL: http://dx.doi.org/10.11646/phytotaxa.489.1.

Molecular Phylogenetic Support for the Taxonomic Merger of Fitzalania and Meiogyne (Annonaceae): New Nomenclatural Combinations Under the Conserved Name Meiogyne

Meiogyne (Annonaceae) currently comprises 15 species of trees and shrubs, distributed in India, Southeast Asia, Australasia, Micronesia and Polynesia. Previous molecular phylogenetic studies have shown that the Australian endemic genus Fitzalania (consisting of only two species) is nested within Meiogyne, and preliminary morphological data have indicated that several south Pacific Polyalthia species may be misclassified and also associated with Meiogyne. We use maximum parsimony, maximum likelihood and Bayesian analyses based on seven chloroplast regions (matK, ndhF, ndhF-rpl32, rbcL, rpl32-trnL, trnL-F and ycf1) to reconstruct the most comprehensive phylogeny of Meiogyne available to date, inclusive of 13 Meiogyne species, the two Fitzalania species, as well as four Polyalthia species from Fiji and Tonga. The results show that Fitzalania and the four Polyalthia species are nested within Meiogyne, and that two species, M. cylindrocarpa and M. stenopetala, are not natural as currently defined. Meiogyne cylindrocarpa subsp. trichocarpa and M. stenopetala subsp. insularis are not conspecific with their respective autonymic subspecies and are morphologically distinct. Based on the plastid marker phylogeny, and corroborated by morphological observations, both subspecies are elevated to species rank, and the four Polyalthia species and the two Fitzalania species are transferred to Meiogyne, thereby increasing the number of species in the genus to 24