A checklist of Asteraceae from Pedra do Lagarto, Santa Maria, Rio Grande do Sul, Brazil
1 Laboratório de Estudos em Vegetação Campestre, Instituto de Biociências, Universidade Federal do Rio Grande do Sul. Av. Bento Gonçalves, 9500, Prédio 43431, Agronomia, Porto Alegre, RS, Brazil. 2…
Asteraceae no Município de Mucugê, Chapada Diamantina, Bahia, Brasil
The floristic inventory of the Asteraceae in the municipality of Mucuge, Bahia is surveyed, providing subsidies for an updated taxonomic recognition of the family in the region to show a significant species richness and endemisms in this family for the grassland vegetation.
Asteraceae no município de Jacobina, Chapada Diamantina, Estado da Bahia, Brasil
The study aims to survey the flora of Asteraceae of the municipality of Jacobina, discuss occurrence and distribution, and provide a key for species, with emphasis on the genera Lepidaploa and Mikania.
Phylogenetic relationship of the genus Scorzoneroides (Compositae) inferred from plastid and low-copy nuclear markers, and karyological data
In unserem Projekt sollen die Chloroplasten-DNA Daten zum einen vorhergegangene Ergebnisse bestatigen, and zum anderen eine zusatzliche Informationsquelle darstellen.
Pappus and fruit micromorphology and fruit anatomy in some members of the tribe Cardueae (Asteraceae) from Turkey with their contributions to systematics.
- MedicineMicroscopy research and technique
Data of pappus and cypsela characters as well as previous results from 21 additional Cardueae taxa have been comparatively evaluated, and a total of 42 taxa were grouped by using cluster and MDS analysis methods.
Tricomas foliares en Senecio sección Mulgediifolii (Senecioneae, Asteraceae)
The combination of characters like trichome type, ornamentation and wax deposition may be useful for recognizing the species of Senecio section Mulgediifolii.
Flower structure in ten Asteraceae species: considerations about the importance of morpho-anatomical features at species and tribal level
- BiologyBrazilian Journal of Botany
The floral ontogeny of ten Brazilian weed species of Asteraceae was performed to describe the morpho-anatomy, ontogenetic steps, and identify features that may support the tribeal classification.
Cuticular Patterns on Stylar Hairs in Asteraceae: a New Micromorphological Feature
- BiologyInternational Journal of Plant Sciences
It is speculated that the cuticular striations of the stylar hairs increase the repellence of water drops in the flower, which would harm the viability of the pollen grains (due to osmosis, most pollen grains burst in pure water).
Systematic significance of cypsela morphology in Lessingianthus (Vernonieae, Asteraceae)
- BiologyAustralian Systematic Botany
Cypsela features of Lessingianthus are often widespread in other related genera of Vernonieae, but they are valuable within genera to differentiate related species from one another.
Cytomorphological Diversity in Some Members of Family Asteraceae from the Ecologically Disturbed Habitats of Solang Valley, Kullu District, Himachal Pradesh
Present cytomorphological surveys include meiotic studies and chromosome counts in 42 species under 93 accessions collected from the various localities of Solang Valley in Kullu district, Himachal…
SHOWING 1-10 OF 23 REFERENCES
Origin and Development of Compositae
- GeologyBotanical Gazette
of the gymnosperms and angiosperms contains a few illustrations from articles by CHAMBERLAIN and Miss PACE which had been published in the BOTANICAL GAZETTE. The articles on paleobotany were first…
New infrafamilial taxa in Asteraceae
Phylogenetic studies based on chloroplast DNA have recently identified several lineages that are recognized at the tribal and subfamily levels that are related to tribes and subfamilies that have been described.
Phylogeny and Taxonomy of the Compositae
An effort to summarize the information available on the origin of the family, and on the evolutionary developments and broad relationships within the group, and suggests that the Heliantheae comes the nearest of all the tribes to matching the necessary characters of the hypothetical progenitor of the group.
Phylogeny and character evolution in the Asteraceae based on chloroplast DNA restriction site mapping
The chloroplast DNA phylogeny shows almost complete congruence with the less explicit phyletic scheme proposed by Thorne but differs markedly from the cladistically-based phylogeny of Bremer.
Nuclear rDNA Evidence for Major Lineages of Helenioid Heliantheae (Compositae)
Pappi of bristles or bristle-like subulate scales have arisen in various lineages of Heliantheae s.s.l. and in general have received too much weight in previous circumscriptions of suprageneric taxa, according to the phylogenetic data.
THE ORIGIN AND DEVELOPMENT OF THE COMPOSITÆ.
- Materials Science
The variation in structure of styles and stamens is described and discussed in separate sections, while their functions in the pollen-presenting mechanism is considered partly in section D of the present chapter and partly in Chapter III which deals with the irritability of the mechanism.
Phylogenetic studies in the Gerbera‐complex (Compositae, tribe Mutisieae, subtribe Mutisiinae)
The paper discusses the phylogenetic and taxonomic implications of the presented consensus-tree and proposed to rank the Gerbera-complex as a single, large genus.
Chloroplast DNA Variation in the Asteraceae: Phylogenetic and Evolutionary Implications
These studies, which have produced the largest molecular data set for any plant family, have allowed us to perform phylogenetic comparisons from the intraspecific to the interfamilial levels and to sequenced the gene encoding the large subunit of ribulose-l,5-bisphosphate carboxylase (rbcL).