About: Astrantia is a research topic. Over the lifetime, 21 publications have been published within this topic receiving 259 citations. The topic is also known as: Elancholy gentleman, Masterwort and Hattie's pincushion..
TL;DR: It was found that the southern African genera Alepidea and Arctopus are (probably successive) sister to the remainder of the subfamily, followed by the Southwest Asian Actinolema and the western Eurasian Astrantia as sister genera.
Abstract: ITS and rps16 intron sequences of altogether 83 species ofApiaceae subff. Saniculoideae (66 spp.), Apioideae (11 spp.), Mackinlayoideae, Azorelloideae (1 sp. each), Araliaceae subff. Hydrocotyloideae (2 spp.), Aralioideae (1 sp.) and Griseliniaceae (1 sp.) were analysed to reconstruct the phylogeny ofApiaceae subf. Saniculoideae tribe Saniculeae. Particular emphasis was placed on Eryngium, with 230-250 spp. the largest genus ofApiaceae, which was represented by 52 species. It was found that the southern African genera Alepidea and Arctopus are (probably successive) sister to the remainder of the subfamily, followed by the Southwest Asian Actinolema and the western Eurasian Astrantia as sister genera. The cosmopolitan Sanicula and Hacquetia from Central Europe, Petagnaea from Sicily and two major (plus two smaller) clades of the cosmopolitan Eryngium form an unresolved polytomy. Eryngium consists mainly of one large clade distributed exclusively in the Old World, and a second large clade with mostly American species. The first branches of this latter clade are distributed mainly in the Iberian peninsula, implying an Old World origin of this New World clade. It also contains Australian species which apparently arrived there from South America. Although Eryngium is not resolved as monophyletic by the molecular data, it is argued that Eryngium is best interpreted as a monophyletic genus. The tribe is of southern African origin. From there, it reached western Eurasia between 49.3 and 44.6 million years ago (mya). Eryngium entered the New World between 7.4 and 6.6 mya, and Australia was reached between 2.6 and 2.2 mya.
TL;DR: It is remarkable that families like Apiaceae and Brassicaceae, characterised by uniform floral diagrams, show a great variability in initiation sequence of the floral organs.
TL;DR: The fruit essential oils of two populations of Astrantia major L. (Apiaceae) were analyzed in detail and the lignan profiles supported the existence of at least two A. major chemotypes, and the chemotaxonomical usefulness of such chemical data in differentiating taxa from these two Apiaceae subfamilies was assessed.
Abstract: The fruit essential oils of two populations of Astrantia major L. (Apiaceae, subfamily Saniculoideae) were analyzed in detail by GC and GC/MS analyses. Seventy-six constituents identified accounted for 92.7-94.0% of the oils. The two oils differed significantly: the wild-growing population from Serbia contained zingiberene (47.9%), β-bisabolene (9.7%), and β-sesquiphellandrene (7.9%), while the one from Poland (botanical gardens) was sesquiterpene-poor with the major contributors oleic acid (38.6%), nonacosane (15.4%), and linoleic acid (5.1%). Motivated by the unresolved taxonomical relations between the Saniculoideae and Apioideae subfamilies, we performed multivariate statistical analyses on the compositional data of these A. major samples, and additional 14 Saniculoideae and 31 Apioideae taxa. This allowed us to assess the chemotaxonomical usefulness of such chemical data in differentiating taxa from these two Apiaceae subfamilies and to corroborate the existence of at least two A. major chemotypes. Diethyl ether extracts of the two samples of A. major fruits yielded seven diaryltetrahydrofurofurano lignans. Except for eudesmin that has been found for the first time in a Saniculoideae taxon, all other lignans (magnolin, epimagnolins A and B, epieudesmin, yangambin, and epiyangambin) are new for the entire plant family Apiaceae. The lignan profiles also supported the existence of two separate A. major chemotypes.
TL;DR: Twenty-nine herbaceous perennial ornamentals were evaluated for root galling after 2 months in soil infested with Meloidogyne hapla and found to be resistant to nematode attack.
Abstract: Twenty-nine herbaceous perennial ornamentals were evaluated for root galling after 2 months in soil infested with Meloidogyne hapla u n d e r greenhouse conditions. Plants such as Asclepias, Epimedium, Liriope, Lithospermura, Myosotis, Penstemon, Sidalecea, and Solidago did not have galls or egg masses present on the root system and were rated as resistant. Astrantia, Boltonia, Centranthus, and Miscanthus had more than 100 galls on the roots (similar to 'Rutgers' tomato controls) and were rated susceptible. The remaining plants were intermediate in response. The identification of additional M. hapla-resistant perennial ornamentals will aid in nematode management in nurseries and landscapes.
TL;DR: Based on extensive comparisons with similar communities in the Southeastern Alps and in the northern part of the Dinaric mountains, the studied communities are classified into the order Seslerietalia caeruleae, which is described as the following new syntaxa: Primulo carniolicae-Sedge swards and stony grasslands on the northern edge of the Trnovski gozd plateau in western Slovenia.
Abstract: Applying the standard Central-European phytosociological method we studied the open sedge swards and stony grasslands on the northern edge of the Trnovski gozd plateau in western Slovenia. Based on extensive comparisons with similar communities in the Southeastern Alps and in the northern part of the Dinaric mountains we classified the studied communities into the order Seslerietalia caeruleae Br.-Bl. in Br.-Bl. & Jenny 1926. They are differentiated from similar communities in the Southeastern Alps by certain northern-Illyrian endemics (above all by Primula carniolica and Hladnikia pastinacifolia) and by some of the southern or southeastern-Alpine-Illyrian species (e.g. Phyteuma scheuchzeri subsp. columnae, Astrantia carniolica and Aquilegia bertolonii). This article describes these communites as the following new syntaxa: Primulo carniolicae-Seslerietum calcariae, Primulo carniolicae-Caricetum firmae, Caricetum mucronatae var. geogr. Primula carniolica and Caricetum ferrugineae var. Astrantia carniolica.