Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Nomenclatural Changes In Polemoniaceae, J. Mark Porter
Nomenclatural Changes In Polemoniaceae, J. Mark Porter
Aliso: A Journal of Systematic and Floristic Botany
Recent molecular phylogenetic analyses of nuclear, chloroplast and mitochondrial DNA of Polemoniaceae have prompted a reexamination of morphological data and a reassessment of current taxonomy. These studies prompt several nomenclatural changes in the family. Eight taxa formerly included in Gilia section Giliastrum are transferred to the genus Giliastrum. In addition, two new tribes of Polemoniaceae are recognized.
Aliciella, A Recircumscribed Genus Of Polemoniaceae, J. Mark Porter
Aliciella, A Recircumscribed Genus Of Polemoniaceae, J. Mark Porter
Aliso: A Journal of Systematic and Floristic Botany
Recent phylogenetic analyses within Polemoniaceae have provided evidence that the current circumscriptionof Gilia recognizes and gives taxonomic status to a polyphyletic assemblage of species. As a first step in rectifying this problem, the genus Aliciella Brand (Polemoniaceae) is resurrected and recircumscribed to include Gilia section Giliandra and Gilia subgenus Gilmania sensu Mason & Grant, a monophyletic (=holophyletic) group as here described. Twenty-one recombinations are proposed: Aliciella cespitosa, A. formosa, A. haydenii, A. haydenii subsp. crandallii, A. heterostyla, A. humillima, A. hutchinsifolia, A. latifolia, A. latifolia subsp. imperialis. A. leptomeria. A. lottiae. A. mcvickerae.A. micromeria. A. nyensis, A. pentstemonoides, A. …
Phylogeny Of Polemoniaceae Based On Nuclear Ribosomal Internal Transcribed Spacer Dna Sequences, J. Mark Porter
Phylogeny Of Polemoniaceae Based On Nuclear Ribosomal Internal Transcribed Spacer Dna Sequences, J. Mark Porter
Aliso: A Journal of Systematic and Floristic Botany
Nuclear ribosomal internal transcribed spacer (ITS) DNA sequences are used to estimate the phylogeny of 53 members of Polemoniaceae, representing all but two genera of the family. Fitch parsimony analysis of equal-weighted nucleotide sites result in 1080 minimal-length trees. However, when alignment-ambiguous positions are removed and an II: 10 transition to transversion weighting is imposed only eight trees are found. These data are used to address two issues: I) patterns of diversification in Polemoniaceae, and 2) the circumscription and monophyly of the genus Gilia. Although the monophyly of Polemoniaceae is well supported, relationships inferred among the earliest diverging lineages …
New Species, Combinations, And Notes In Ipomopsis (Polemoniaceae), James Henrickson
New Species, Combinations, And Notes In Ipomopsis (Polemoniaceae), James Henrickson
Aliso: A Journal of Systematic and Floristic Botany
Ipomopsis wendtii and Ipomopsis aggregata subsp. carmenensis are described as new from the Sierra del Jardín and Sierra del Carmen in northern Coahuila, Mexico, Ipomopsis pringlei is recognized as specifically distinct from Ipomopsis macombii. Gilia calothrysa is considered synonymous with I. macombii, and Ipomopsis effusa is reported as new to the floras of California and the United States.