Showing papers in "Botanical Journal of the Linnean Society in 1999"

TL;DR: Sequence analyses of the plastid genes atp B and rbc L support an expanded order Malvales and propose to merge Sterculiaceae, Tiliaceae and Bombacaceae with Malvaceae and subdivide this enlarged family Malvoideae into nine subfamilies based on molecular, morphological, and biogeographical data.

TL;DR: Gynoecium and ovule structure was compared in representatives of the basal eudicots of Ranunculales, Proteales, and some families of the former «lower» hamamelids that have been moved to Saxifragales and incertae sedis to support the close relationship of Platanaceae and Proteaceae.

TL;DR: The paper includes a short description of concept and rules of the new system for the nomenclature of cultivated plants, as published in the 1995 International Code of Nomenclatures for Cultivated Plants or Cultivated Plant Code, and a proposal to distinguish four cultivar groups.

TL;DR: Using ultrastructural, biochemical and molecular data, a classification scheme, which delineates 16 genera, is proposed for the Cryptophyta, which accommodates three new families, the Campylomonadaceae, Geminigeraceae, and Chroomonadaceae.

TL;DR: A comparison between Polygalaceae and Fabaceae flowers reveals a wealth of functional congruences with regard to visual attraction, flower mechanics, presence of special contrivances such as tongue guide, foot handles, pollen cache, etc., pollen presentation and nectar storage.

TL;DR: It is demonstrated that 40 years was sufficient time for the secondary forest to recover the original structure of the primary forest, but not the original species richness, and that the mixture of primary forest and disturbed forest has led to an increase in total species diversity.

TL;DR: It is concluded that these very fragmentary fossils derive from small plants comprising relict populations of the vegetation that flourished on land in turfs through the greater part of the Ordovician and early Silurian, but that was gradually replaced by the tracheophytes.

TL;DR: Comparative studies on fossil and living specimens of the genus suggest a new approach to the classification of species ofMetasequoia, and investigations indicate that extantM.

TL;DR: It is suggested that some kind of phylogenetic constraint may exist, impeding the occurrence of pollinators other than bees in these orchid genera, since all other flower-visiting animals lack the labrum-like structure needed to fix the pollinarium.

TL;DR: A phylogenetic analysis of plastid DNA sequences from the trn L-F region corroborates the hypothesis that Haemodoraceae, a small monocotyledonous family centred in southwestern Australia, are monophyletic with relationships to Philydraceae, Pontederiaceae and Commelinaceae.

TL;DR: N. pumilio plants appear to start their growth with the production of short GUs in all of their axes irrespective of the light conditions, and the development of a vertical, vigorous trunk seems to be restricted to plants growing in open environments.

TL;DR: Both aerial and terrestrial roots are notable for their uniseriate velamen the cell walls of which may be unmarked or ornamented with anticlinal strips.

TL;DR: PCR RFLP analysis of wild hybrids between F. japonica var.Japonica and either F. compacta or F. sachalinensis indicates that F.japonica is the maternal parent of all of its hybrids, consistent with the apparent male-sterility of this taxon in Britain.

TL;DR: Morphology, taxonomy, reproductive biology, esterase isozyme patterns and chromosome number were studied in 16 accessions of cultivated and wild buckwheat native to Tibet, Sichuan, Guizhou and Yunnan, and three new species are described, including F. megaspartanium and F. pilus.

TL;DR: Two forms of monocotyledon macrofossil are documented from latest Albian-earliest Cenomanian sediments of the Eromanga Basin, central Queensland, Australia, and appear to be the currently known, oldest, organically preserved monocots.

TL;DR: The finding of alleles unique to each species indicates high divergence among species suggesting ancient diversification, and supports the hypothesis of a geographical model of speciation in Antirrhinum.

TL;DR: The present results on development and morphology of the flowers of Thunbergia are compatible with an earlier subdivision of the genus into eight subgenera.

TL;DR: A group of tropical American orchids characterized by euglossine bee pollination and lateral inflorescences stemming from the bases of pseudobulbs and chlorenchyma, which is homogeneous and characterized by fibre bundles in adaxial/abaxial or adaxia/median/abxial positions, is described.

TL;DR: One new subspecies of NothofagusBlume, Noth ofagus obliquasubsp.andina, is described from Chile, and two new combinations have been made of the species.

TL;DR: A cladistic analysis based on 63 morphological characters was carried out on the tribe Colletieae including two presumed closely related genera, Geanothus and Noltea as outgroupS, finding the Colletia species from a well supported monophyletic group, while monophyly of the disjunct genus Discaria could not be confirmed.

TL;DR: Ensiform leaf development in monocotyledons follows a broadly similar sequence in a wide range of relatively unrelated taxa, indicating a plastic developmental pattern, possibly associated with stressed environmental conditions, since Xyrisspecies tend to grow in relatively damp but nutrient-poor environments.

TL;DR: Fascicularia bicolor (Ruiz & Pav.) Mez, the only one species in the genus, comprises two subspecies which are distinguished by their leaf anatomy and morphology.

TL;DR: Cuticle micromorphology of 21 species of Pinus in east and south-east Asia was studied with scanning electron microscopy and leaf morphology was described, using cuticular characters to try to resolve the position of taxa that currently appear in different places in different classifications.

TL;DR: Comparison between the theoretical and the observed mean inflorescence size suggests, that for M. pentlandiana, pollen donation may be the primary evolutionary factor behind excess flowers.

TL;DR: Plant fossils from the Avon Gorge originally identified as Rhacophytonsp.

TL;DR: Three new Narcissus species are described that are endemic to the mountains of south-east Spain and grow in meadows or deciduous oak forests and characters used for determining resemblances and differences with other known taxa are discussed.

TL;DR: Transmission electron microscopy revealed mucilage, characterized by microfibrils, embedded between the innermost wall-like septum and outermost layers of the inner periclinal cell wall, confirming the authenticity of mucilagination in epidermal cell walls.

TL;DR: A potential chemotaxonomic value of seed fatty acids and tocopherols in Onagraceae is suggested, and some phylogenetic relationships are suggested.

TL;DR: It is indicated that in the Begoniaceae the endothecium is of moderate systematic value within and between closely related sections inBegonia and in Symbegonia and exhibits high levels of homoplasy between distantly related sections of Begonia.

TL;DR: P Phenological, functional-morphometric and distribution data indicate that A. mangkamensis is an optimal pollinator of H. flabellata and thus the anthecological adaptation of the orchid to the pollen vector may be unique.