Showing papers in "Botanical Journal of the Linnean Society in 2004"

TL;DR: The concept of ‘archaeophytes’ (alien taxa which became established in a study area before AD 1500) is widely used in floristic analyses in central and northern Europe, but few authors have applied it to the British flora.

TL;DR: Pollen morphological data confirm the coexistence of the two pollen patterns in the subtribe Artemisiinae containing Artemisia L. are considered to be closely related with increased environmental variation, including global climate changes and some important tectonic movements.

TL;DR: Results from this study confirm that Apiales comprise five major lineages: core Apiaceae, core Araliaceae, Pittosporaceae, the Mackinlaya group and the Myodocarpus group, and the nature and extent of the polyphyly is confirmed.

TL;DR: This paper shows the highest diversity of useful palm species and the highest number of different uses ever recorded for an indigenous group in Amazonian Ecuador.

TL;DR: Phylogeny inferred from morphology and DNA data: characterizing well-supported groups in Vanguerieae (Rubiaceae) is characterized.

TL;DR: The Euterpe edulis embryo consists of a prominent single cotyledon, a very short radicle-hypocotyl axis and an epicotyl, which corresponds to one of the two categories recognized for palm seeds by DeMason (1988).

TL;DR: A chromosomal pattern with few polyploids infers that variation of karyotype structure at the diploid level seems to be the predominant feature of chromosomal evolution in this group and sympatric speciation via hybridization and polyploidization has played a minor role in its species diversity.

TL;DR: Significant differences in chromosome size, morphology and condensing behaviour were observed among members of the controversial tribe Cassieae, revealing the tribe to be a heterogeneous group from the karyological point of view.

TL;DR: On the basis of the study of c.

TL;DR: The results support the idea that whereas leaf development is controlled primarily by moisture availability and secondarily by temperature, flowering is temperature dependent, above a minimum moisture threshold.

TL;DR: Two alternative hypotheses on the aberrant chromosome number (for the Centaureinae) found in C. behen are proposed and if verified would confirm that a cycle of polyploidy and descending dysploidsy is a key mechanism in the speciation of the group.

TL;DR: Gas chromatography with electroantennographic detection revealed the male wasp pollinators are electrophysiologically responsive to the same GC peak on two different kinds of GC column in both orchids, leading to predictions that a single compound is the sexual attractant in all Australian Cryptostylis.

TL;DR: The results suggest that fungus gnats are highly efficient pollinators of Mitella spp.

TL;DR: It is shown that the genus Ceratonia formed part of the wild flora of western Europe in preglacial times and that C. siliqua was present in ancient times in the Middle East and that its spread to the western Mediterranean area took place progressively, possibly beginning in the second millennium bc.

TL;DR: Multivariate analysis was carried out in order to elucidate the taxonomic relationships between Salvia officinalis L., the type species of the genus, and S. fruticosa Mill.

TL;DR: Cladistic analyses using anatomical characters yielded no resolution among subtribes, illustrating that anatomical characters are of limited value in assessing relationships within this tribe.

TL;DR: The majority of the endemic species in the southern and south-western parts of Iran are Irano‐Turanian or have their origins in the Irano-Turanian region and it is questionable to consider the area as part of either the Saharo‐Sindian, Sudanian or Sudano‐Zambezian regions.

TL;DR: The data show that the relative frequency of polyphily, oligophily, monophily and anemophily are influenced by community structure and plant species richness, and may change from season to season, and the relative importance of night pollination among life forms decreased from trees to perennial herbs.

TL;DR: Investigation of the joint influence of pollination type and maternal effects on both life-cycle traits and dispersal ability in the herb Hypochaeris radicata found that selfed seeds produced outperformed outcrossed seeds in seed size and flowering probability, surely as a result of an effective reallocation of resources among selfing seeds.

TL;DR: The lateral meristems of all Nyctaginaceae studied are storied (stratified), as are products except for fibres, which undergo such extensive intrusive growth that a storied pattern is not achieved at maturity.

TL;DR: The population structure of H. salzmanniana reveals distinct groups in southern Spain that are separated geographically, and population sizes and genetic compatibility differ greatly among populations and can be used to explain levels of within-population genetic diversity, together with recent documented loss of habitats resulting from tourist developments.

TL;DR: Chromosome number and morphology in 14 taxa belonging to 19 populations of Tripleurospermum Sch.

TL;DR: The evolution and adaptive radiation of these rare and threatened species are discussed with particular reference to the possible role of heterochrony.

TL;DR: Clear patterns were detected suggesting the existence of four independent morphological groups also supported by the ecogeographical data, and at the population level significant differences in hybrid plant frequencies between areas were also found.

TL;DR: Roots, stems, rhizomes and leaves of Rhaponticum carthamoides (Willd.) Iljin (a Siberian adaptogenic plant) of different ages were investigated by means of light and electron microscopy to characterize epithelial cells in all organs.

TL;DR: Sophora tomentosa, the type species of the genus Sophora, is shown by phylogenetic analyses of rbcL and ITS sequence data to be sister to Sophora sect.

TL;DR: The developmental morphology of seedlings and shoots of Dalzellia zeylanica was examined with reference to the meristem in order to understand the dorsiventral, foliose shoot.

TL;DR: Leaves of Inula viscosa have been used in medicine from ancient times and produce, as do its leaf cells, numerous polar compounds that could be of pharmaceutical interest.