Showing papers in "Botanical Journal of the Linnean Society in 2005"

TL;DR: The results suggest that Rosa in its traditional infrageneric circumscription is not reflected by molecular data, and the highest taxonomic rank below the generic level should be the sectional status.

TL;DR: Investigating the patterns of generalism and specialization among plants and animal pollinators by comparing the flower visit frequency by different pollen vectors during the spring and summer months of three consecutive years found plants with unspecialized flower morphology supported a higher species richness of pollinators, but visiting rates did not differ from specialized flowers.

TL;DR: Among Celastrales, Lepidobotryaceae especially share special features with Malpighiales, including a diplostemonous androecium with ten fertile stamens, epitropous ovules with an obturator and strong vascularization around the chalaza.

TL;DR: The main finding is that the Miocene flora of Iceland belongs to a widespread Neogene northern hemispheric floral type including plants whose representatives are restricted to East Asia, North America and to western Eurasia at the present time.

TL;DR: The results confirm that methodological problems posed by RAPD markers can be avoided by careful laboratory procedures and appropriate data analyses and suggest that this kind of marker is useful at low taxonomic levels and is, furthermore, complementary to DNA sequence analysis.

TL;DR: A phylogenetic analysis of morphological data and the sequences of the internal transcribed spacers of nuclear ribosomal DNA suggested that the Chinese species Z. schneideriana and Z. sinica are basal within Zelkova, and gene flow occurred between Z. carpinifolia and a lineage ancestral to Z. abelicea/sicula.

TL;DR: Results suggest that phenotypic plasticity, gene flow, hybridization and natural selection have shaped foliar variation in this oak complex.

TL;DR: Twenty-two chromosome counts of 19 taxa (21 populations) in the tribe Anthemideae and one member of the tribe Inuleae of the family Asteraceae are reported, finding Dysploidy is also present, with two x = 8 diploid taxa.

TL;DR: Floral structure of all putative families of Crossosomatales as suggested by molecular studies was comparatively studied.

TL;DR: The leaf epidermis of 127 samples representing ten species within Schisandra Michaux.

TL;DR: It appears that relatively minor structural changes are associated with switches to rodent dispersal in Paullinia sphaerocarpa and water dispersalIn P. clathrata andP.

TL;DR: Detailed studies were carried out on the phenology, floral biology, pollination ecology and breeding system of Boswellia serrata Roxb, the source of ‘salai guggul’, which is self-incompatible and the self-pollen tubes are inhibited soon after their entry into the stigma.

TL;DR: For certain populations having morphologies intermediate between those considered typical of these two subspecies, nuclear DNA contents showed them to be tetraploid, with greater values in the more easterly populations.

TL;DR: It is demonstrated that the pollen has a distinct chemical character in possessing two exclusive volatiles, while lacking seven compounds occurring in males and females of both variants.

TL;DR: The structure of the lip, where pollinators are temporarily kept prisoner, and the method of their capture, are unusual in being Paphiopedilum - rather than Cypripedium -like, and may foreshadow evolutionary transitions between melittophily and myiophily found in slipper orchids.

TL;DR: The meiotic behaviour was abnormal, with a single multivalent ring of six chromosomes at metaphase I, resulting from multiple translocations, and the occurrence of ectopic telomeric sites has not been described previously for plants with holokinetic karyotypes and with reduced chromosome numbers.

TL;DR: The analysis revealed two major groups within Velloziaceae, supported mainly by stomata, vascular bundles in the pedicel, aquiferous tissues, filaments, anthers, pollen, stigma, seeds, ploidy and chemical characters.

TL;DR: The intrapopulation variation of the population from the Abruzzian Apennines is comparable with those of all six populations of P. mugo from the Sudety and Carpathian Mountains, suggesting that isolated but locally abundant plant populations do not necessarily show a reduction in variability resulting from isolation.

TL;DR: The results suggest that inbreeding depression in the two self-compatible species may also result in partial seed abortion under open pollination if mixed pollen is deposited on the stigma, and suggest that pollen interference plays an important role in low female fertility in theTwo Pedicularis species.

TL;DR: Four plastid markers, four nuclear markers and 14 morphometric characters were used in this study to investigate the evolution of Dactylorhiza baltica in European Russia and several morphological characters were found to be robust and could be useful in identification of D.baltica.

TL;DR: Eight species of rain forest species of the genus Chlorophytum in central and west Africa are recognized, including one with three subspecies and another with three varieties, and ten new synonyms are introduced and three lectotypes are designated.

TL;DR: Karyotype structures and heterochromatin distribution in representative taxa of the genus Ophrys are compared, based on Feulgen-stained and banded somatic metaphase chromosomes, and the relationships among the species with respect to asymmetry indices and heterchromatin content are indicated.

TL;DR: This revision was to elucidate the taxonomic position of the specimens collected in south Angola, and to provide a review of species boundaries in the genus, especially between T. angolense P. Silveira & S. Castro sp.

TL;DR: The three northernmost populations were found to contain the majority of the species’ remaining genetic diversity and thus, should be a focus for future conservation management.

TL;DR: Although Rotafolia songziensis closely resembles Hamatophyton verticillatum in axis character, leaf morphology and primary xylem type, they are quite different in strobilar structure.

TL;DR: The results indicate that sect.

TL;DR: As the first definitive documentation of Tetraxylopteris in Gondwana, this study indicates aneurophytalean progymnosperms were more widespread than formerly understood and support the concept of a largely uniform worldwide vegetation.

TL;DR: Macro- and micromorphological characters of the seeds of 32 species belonging to Aizoaceae, Gisekiaceae and Molluginaceae were analysed for their taxonomic value, and seed characters support the independence of Gisekia in a family of its own.

TL;DR: New taxonomic data are provided for the genus Didymodon, after a revision of the species treated as Trichostomopsis, where only two species are now recognized: D. australasiae andD.

TL;DR: After studying the morphology and anatomy of abundant well-preserved specimens from two localities, Sublepidodendron wusihense and Lepidostrobus grabaui are reconsidered and viewed as Suble pidodendronsgrabaui (Sze) comb.