New Species, Combinations, and Notes in Ipomopsis (Polemoniaceae)
نویسندگان
چکیده
منابع مشابه
Asymmetrical pollen success in Ipomopsis (Polemoniaceae) contact sites.
Variation in hybridization rates among contact sites of a species pair provides an opportunity for assessing the importance of individual reproductive isolating mechanisms in limiting gene flow between species and thus promoting speciation. Conspecific pollen advantage is common in angiosperms, but its importance as a reproductive isolating mechanism is uncertain. We compared the strength of co...
متن کاملLeaf physiology reflects environmental differences and cytoplasmic background in Ipomopsis (Polemoniaceae) hybrids.
Natural hybridization can produce individuals that vary widely in fitness, depending upon the performance of particular genotypes in a given environment. In a hybrid zone with habitat heterogeneity, differences in physiological responses to abiotic conditions could influence the fitness and spatial distribution of hybrids and parental species. This study compared gas exchange physiology of Ipom...
متن کاملSelf-sterility in Ipomopsis aggregata (Polemoniaceae) is due to prezygotic ovule degeneration.
Based on previous studies, extreme (>99%) self-sterility in scarlet gilia (Ipomopsis aggregata) appears to be involved in late-acting ovarian self-incompatibility (OSI). Here, we confirm this suggestion by comparing structural events that follow from cross- vs. self-pollinations of I. aggregata. Growth of cross- and self-pollen tubes in the style at 11 h and growth in the ovary at 24 h was equi...
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Based on the taxonomic and nomenclatural recommendations of Quandt et al. (2014) new species combinations are made for Ophiocordycipitaceae. These new combinations are compliant with recent changes in the International Code of Nomenclature for algae, fungi, and plants (ICN) and the abolition of the dual system of nomenclature for fungi. These changes include 10 new combinations into Drechmeria,...
متن کاملNew species, new combinations and new distributions in neotropical species of Elaphoglossum (Lomariopsidaceae).
More new species, new combinations and new distributions are made in the large and difficult genus Elaphoglossum in Neotropic. Ten new species are described, this are: Elaphoglossum adrianae A. Rojas, E. betancuri A. Rojas, E. caridadae A. Rojas, E. glabromarginatum A. Rojas, E. kessleri A. Rojas, E. macdougalii A. Rojas, E. paramicola A. Rojas, E. paxense A. Rojas, E. pseudoherminieri A. Rojas...
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ژورنال
عنوان ژورنال: Aliso
سال: 1987
ISSN: 2327-2929
DOI: 10.5642/aliso.19871104.14