Jun 14th, 2007
New Literature
Literature Archive: 2007 | 2008 | 2009 | 2010 | 2011 | 2012
Not all members of the International Cichorieae Network do have access to botanical libraries. As a service we would like to point to important recent publications regarding Cichorieae. However, some articles will escape our attention. Therefore, your hints to recent publications are always welcome.
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6 January 2012
Duran A., Dogan B., Hamazaoğlu E. & Aksoy A. 2011: Scorzonera coriacea A. Duran & Aksoy (Asteraceae, Cichorieae), a new species from South Anatolia, Turkey. – Candollea 66: 353–359.
Abstract:
“A new species, Scorzonera coriacea A. Duran & Aksoy (Asteraceae) from Anatolia, Turkey, is described and illustrated. The species grows in open Pinus nigra forest and on the serpentine stony slopes of the Kızıldağ Mountain in the district of Derebucak (Konya province) in the Kızıldağ National Park in the district of Şarkikaraağaç (Isparta province). Scorzonera coriacea is a very distinct species, and with no obvious allies among other Scorzonera species in Turkey in terms of morphological features. The new species is an endemic confined to the Southern Anatolia. Notes on its ecology, biogeography and its conservation status are also presented. The geographical distribution of the new species is mapped.”
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6 January 2012
Pruski J. F. 2011: Hypochaeris microcephala var. albiflora (Hypochaeris albiflora: Asteraceae), new for the vascular flora of Mississippi and its distribution in North America. – J. Bot. Res. Inst. Texas 5: 345–348.
Abstract:
“Hypochaeris microcephala var. albiflora is newly reported to Mississippi. This South American native is vouchered in the United States only from Georgia, Louisiana, Mississippi and Texas.”
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6 January 2012
Šingliarová B., Chrtek J., Plačková I. & Mráz P. 2011: Allozyme variation in diploid, polyploid and mixed-ploidy populations of the Pilosella alpicola group (Asteraceae): relation to morphology, origin of polyploids and breeding system. – Folia Geobot. 46: 387–410.
Abstract:
“The Pilosella alpicola group includes four species (P. alpicola s.str., P. ullepitschii, P. rhodopea and P. serbica) with allopatric distributions (Alps, Balkans, Carpathians) and contrasting cytotype patterns (diploid, diploid-polyploid and polyploid species). Whereas diploid taxa (P. ullepitschii and P. serbica) reproduce sexually, the mode of reproduction of polyploid cytotypes reflects their origin: autopolyploids of P. rhodopea reproduce sexually, while allopolyploid cytotypes of P. alpicola s.str. apomictically. We used allozymes to elucidate overall genetic variation within the group and to test their utility for taxon discrimination, assessment of polyploid origin and possible correlations with breeding systems. Variation of five allozyme systems encoded by eight polymorphic loci and 29 alleles was studied in 20 populations and 298 plants representing all taxa. Allozymes were proved to be only of limited usefulness for the taxonomic classification within the P. alpicola group. The Western Carpathian populations of P. ullepitschii formed the only genetically well-differentiated group. The same allele suite shared by all cytotypes of P. rhodopea and presence of both balanced and unbalanced heterozygotes in tetraploids was consistent with autopolyploid origins of polyploids and provided further evidence for a primary contact zone. An isolated relic population of P. rhodopea from the Southern Carpathians exhibited lowered values of genetic diversity when compared to the core area. Pronounced fixed heterozygosity was found in P. alpicola s.str., supporting its allopolyploid origin. In accordance with assumptions, genotypic variability was significantly higher in sexually reproducing diploid and diploid-polyploid taxa than in apomictic P. alpicola s.str.”
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