Phylogeny of the Ranunculaceae Based on Epidermal Microcharacters and Macromorphology

Abstract

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Molecular phylogeny of Ranunculaceae based on rbc L sequences

“…Caltha is generally considered the most original group of Helleboroideae (Smith 1928;Tamura 1987Tamura , 1990, as also supported in later research (Loconte & Estes 1989;Hoot 1991), and the two trees used in our research gave similar results. Caltha is not closely related to Trollius and these two genera should not be assigned to the same tribe (Xi et al 1993).…”

“…Gu & Ren (2007) found that Coptidoideae was an early clade next to Hydrastis in Ranunculaceae and our results support that place at the base of phylogenetic trees. These authors consider that Hydrastis is a highly autapomorphic lineage that should be retained within the Ranunculaceae, while Hoot (1991) advocates placement of Hydrastis in the monotypic family Hydrastidaceae, closely related to the Ranunculaceae (Delectis Florae Reipublicae Popularis Sinicae Agendae, Academiae Sinicae Edita 1979). Combining pharmaphylogeny analysis, we also believe that Hydrastis should be retained within the Ranunculaceae, congruent with the results of Ro and colleagues (1997).…”

“…Peng's (2006a) results, based on pharmaphylogenetic research, were in accordance with the phylogenetic analysis of Tamura (1966Tamura ( , 1993, and also supported the establishment of Cimifugoideae in light of their chemical composition, with Isopyrum as a transitional group (Peng et al 2006b). Other studies have used cytology (Yang 2001;Lehnebach 2007), serological approaches (Jensen 1966(Jensen , 1968 and cladistic analyses (Leconte & Estes 1989;Hoot 1991). Some of these studies are roughly compatible with the current classification of Ranunculaceae, but this information should be carefully evaluated in light of independent phylogenetic estimates, especially molecular sequencing.…”

Trichomes in the tribe Lactuceae (Asteraceae) — taxonomic implications

“…Trichome types are therefore considered as important accessory characters, especially at lower taxonomic levels (e.g. Stebbins 1953;Faust & Jones 1973;Napp-Zinn & Eble 1980;Sahu 1982Sahu , 1984Hoot 1991;Al-Shamary & Gornall 1994;Korolyuk 1997).…”

Palynological Studies on Ten Species of Angiosperms from Nepal

“…Vaidhya (2005). Polyporate pollen grains are considered to be secondarily derived one (Hoot, 1991). In most of the studied taxa are triporate, echinate exine wall.…”