New names and combinations in Mexican Alloispermum (Asteraceae: Heliantheae)
نویسندگان
چکیده
منابع مشابه
An ITS phylogeny of Balsamorhiza and Wyethia (Asteraceae: Heliantheae).
The relationships among the species of Balsamorhiza and Wyethia (Asteraceae: Heliantheae) were examined using data from the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA. The ITS sequences were obtained from nine species of Balsamorhiza and 14 species of Wyethia as well as seven outgroup genera. Five of the outgroup genera were members of the subtribe Engelmanniinae of t...
متن کاملTwo new combinations in the genus Distephanus Cass. (Asteraceae, Vernonieae)
New combinations are provided in Distephanus for two species from Madagascar.
متن کاملDiploid and polyploid cytotype distribution in Melampodium cinereum and M. leucanthum (Asteraceae, Heliantheae).
Previous chromosomal studies within Melampodium (Asteraceae, Heliantheae) of Mexico and Central America have documented chromosome numbers n = 9, 10, 11, 12, 18, 20, 23, 25 ± 1, 27, 30, and 33. Some species also have been shown to exhibit infra- and interpopulational polyploidy. The presence of cytotype mixtures is especially pronounced in the white-rayed complex, which occurs in the southweste...
متن کاملPhylogeny of Balsamorhiza and Wyethia (Asteraceae: Heliantheae) Using ITS, ETS, and trnK Sequence Data
Balsamorhiza and Wyethia together comprise 24 species native to western North America. All species in the two genera are perennial herbs with large taproots and chromosome base numbers of x 5 19. The species of Balsamorhiza have exclusively basal leaves while the species of Wyethia have cauline leaves (in addition to basal leaves in some species). The relationships among the species of Balsamor...
متن کاملValidation of publication of new names and new combinations previously effectively published outside the IJSEM.
The purpose of this announcement is to effect the valid publication of the following new names and new combinations under the procedure described in the Bacteriological Code (1990 Revision). Authors and other individuals wishing to have new names and/or combinations included in future lists should send three copies of the pertinent reprint or photocopies thereof to the IJSEM Editorial Office fo...
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ژورنال
عنوان ژورنال: Phytologia.
سال: 1990
ISSN: 0031-9430
DOI: 10.5962/bhl.part.19465