Showing papers in "Botanical Journal of the Linnean Society in 2006"

TL;DR: An annotated taxonomic conspectus of the genus Coffea (coffee) is presented, with 103 species and seven infraspecific taxa enumerated, with 72 species threatened with extinction as a result of a combination of decline in quantity and quality of habitat.

TL;DR: This paper compiles and evaluates the ethnobotanical data currently available on wild plants traditionally used for human consumption in Spain, and highlights the rich traditional knowledge on edible plants that has remained in rural Spain.

TL;DR: This paper aims to demonstrate the efforts towards in-situ applicability of EMMARM, as to provide real-time information about concrete mechanical properties such as E-modulus and compressive strength.

TL;DR: A new subfamilial classification of the palms is established, in which five subfamilies are recognized, rather than the six that were included in the previous classification, and critical basal nodes are now fully resolved and, in most cases, strongly supported.

TL;DR: It is here claimed that they are the world’s longest lived trees because stem cells of several kinds remain active in differentiated tissues throughout the life of the palm because absence of physiological dormancy may be related to this property.

TL;DR: Of all monocotyledons the Arecaceae displays by far the richest fossil record, and their taxonomy and morphological limitations are considered.

TL;DR: The three most commonly used techniques of data analysis – Cluster Analysis, Principal Component Analysis and Discriminant Analysis – are discussed and the kinds of data that can be taken from palm specimens and the problems of using specimens as data sources are outlined.

TL;DR: The African palm fossil record is limited but the data provide an outline of palm evolution from the Late Cretaceous through the Neogene, with a notable species turnover and decline at the Eocene–Oligocene boundary, a change that resulted in the elimination of nypoid palms from Africa.

TL;DR: Based on 185 427 collection records of 5873 plant species in sub-Saharan Africa, the availability of distribution data suitable for the GIS-based mapping of plant diversity patterns at a one-degree resolution is analyzed.

TL;DR: The systematic position of the enigmatic Asiatic liverwort Metzgeriopsis pusilla (Marchantiophyta), the single thalloid member of the largest family of leafy liverworts, Lejeuneaceae, was investigated based on sequences of the rbcL gene and the trnL-F region of chloroplast DNA, and morphology.

TL;DR: The regression analyses confirmed the hypothesized effects of lineage history on the geographical patterns in species richness, and suggested that modern species richness patterns in the New World palm subfamilies strongly reflect their divergent biogeographical histories.

TL;DR: It is concluded that polyploidy and an effective reproductive system are a perfect mix for successful invasion by these species in Singapore.

TL;DR: A scenario for the evolution of life forms in Davalliaceae and related groups that involves successive changes in rhizome habit, root function, and germination place is hypothesized.

TL;DR: Dye distribution and a novel hydraulic technique are used to quantify species-specific differences in sectoriality in three temperate hardwoods, Betula papyrifera, Acer saccharum and Quercus rubra, finding Sectoriality was related to key elements of xylem structure: intervascular pitting, vessel diameter and vessel grouping.

TL;DR: Censuses of palm communities along transects, studies of microhabitat preferences of Oenocarpus bataua and documentation of the distribution limit of Astrocaryum species in the intermediate zone provide new insights on the floristic change that is occurring.

TL;DR: Data supports the hypothesis that there are two different evolutionary lines in the genus Capsicum and that the native south-eastern Brazilian species belong to the ancestral Capsicum gene pool, and forms a pattern different from that found in Andean wild and semidomesticated species.

TL;DR: These investigations focus on biofilm formation in the early stages of the Rhizobium-legume symbiosis, in which Gram-negative rhizobia provide fixed nitrogen to a host legume, and in return, the legume provides carbon-containing molecules.

TL;DR: Enormous morphological diversification and very few nucleotide substitutions within Clematis indicate the recent radiation of the genus.

TL;DR: The core Brassicales are well supported by a number of synapomorphies, although the internal position of Tovariaceae and Pentadiplandraceae is not well resolved, and the present scheme of affinities within the Brassicale corresponds well with a gradual morphological evolution in the order.

TL;DR: The pollination system of the South African terrestrial orchid Disa nervosa is characterized as intermediate between generalized food deception and specific floral mimicry, suggesting that the orchid does not have an obligate dependence on Watsonia.

TL;DR: The vegetative anatomy and morphology of the angraecoid orchids (Angraecinae + Aerangidinae) and 18 species of aeridine were examined using light and scanning electron microscopy.

TL;DR: Variation in flowering is caused mainly by the variability of weather conditions in the previous and current year, whereby reproductive effort causes further variability in flowering at the individual and, consequently, the population levels.

TL;DR: Although a majority of monocotyledons have simple leaves, pinnately or palmately dissected blades are found in four orders, the Alismatales, Pandanales, Dioscoreales and Arecales, and independent evolutionary origins of leaf dissection are indicated by phylogenetic analyses and are reflected in the diversity of mechanisms employed during leaf development.

TL;DR: A larger secretory surface, together with the extension of the secretory phase in adult flowers, were major shifts in the calycine colleters of Apocynaceae, and are possibly correlated with the functional and ecological aspects of these organs.

TL;DR: The results indicated that the geographical isolation among populations of Z. loddigesii generated allele loss, as well as a clinal variation in the frequencies of two loci ( MDH and MNR2 ), in relation to the latitudinal distribution of populations.

TL;DR: A classification of the genus Klasea, traditionally treated as a section in Serratula, is presented here, accommodating the 46 species in ten sections based on nuclear ribosomal DNA external and internal transcribed spacer sequence data and morphology.

TL;DR: The results of the study support the suggestions that south-eastern South American species are a group cytologically differentiated from the Andean as well as from most other American ones, and that the Brazilian and the North American unifoliolate Lupinus had independent origins.

TL;DR: This study encompasses 25 chromosome counts of 18 species in the subtribe Artemisiinae (tribe Anthemideae) of the family Asteraceae, from Mongolia, and the presence of B-chromosomes was detected in Ajania fruticulosa.

TL;DR: The results, which combine sequences of the internal and external transcribed spacers of the nuclear ribosomal DNA, support the monophyly of Dactylorhiza, with Coeloglossum being a sister clade.

TL;DR: The temporal and geographical variation in the history of botanical recording in the British Isles between 1836 and 1988 has been reconstructed from literature, herbarium, and field records, and related to the number and distribution of botanists.