Showing papers in "Botanical Journal of the Linnean Society in 1988"

TL;DR: The variety of fungal-algal symbioses, their evolutionary significance, aad the nature of lichens are described, and a revised definition to exclude 'mycophycobioses' is proposed, and the terms 'phycotype' and 'parasymbiont' are rejected.

TL;DR: The present data support a division of Polygonum L. sensu lato and its related taxa into two tribes: Polygoneae and Persicarieae (containing Fagopyrum Mill., Harpagocarpus Hutch. and Koenigia L.).

TL;DR: The Lobarion communities in Europe are reviewed on the basis of field surveys by the author from south-west Norway to the Pyrenees, Tuscany and Austria and one being newly proposed here for southern European communities with species drawn from the Xanthorion is proposed.

TL;DR: The monophyly of the Aizoaceae sensu stricto after exclusion of Molluginaceae is demonstrated, and a subdivision of the family and the relevant synapomorphic character expressions are discussed.

TL;DR: Xylem and peripheral support tissues are described in axes of Gosslingia breconensis preserved as iron sulphide permineralizations and it is suggested that coalified layers mainly represent regions of lignification.

TL;DR: The effects of the various components of air pollution including metals, sulphur dioxide and acid rain are summarized.

TL;DR: Ninety-five species, some new to science were recorded, which is the largest number of marine fungi reported from a single study, and the knowledge of the geographic distributions of these fungi has been extended.

TL;DR: Characteristics common to known secretory tissues, however, were observed in all microhairs studied, implying secretory activity in all the morphological types.

TL;DR: The fossil species demonstrate that the tribe Banksieae of the Proteaceae was diverse by the end of the Eocene, but it is difficult to determine the ancestral type from the fossil evidence at present.

TL;DR: Two major disjunctions are recognized between the bryofloras of Europe and North America: Amphi-Atlantic and Western Europe—Western North America.

TL;DR: The structure of the ovules and/or seeds of twelve species of Rapateaceae were studied, some additional embryological characters also being recorded, and the family fits well into the Commelinales.

TL;DR: The primarily neotropical sub-tribe Hyptidinae (Labiatae: tribe Ocimeae) consists of six or seven genera of which the largest is the genus Hyptis with over 300 species as mentioned in this paper.

TL;DR: The pollination biology of the epilithic endemic Aerangis ellisii was studied on an inselberg in the Antananarivo region, central Madagascar and seems to display a relatively moderate specialization versus the Malagasy hawk-moth guild since its nectar is accessible even to those long-proboscis hawk- moth species which are not able to act as pollinators.

TL;DR: It is suggested that the type of staminal tubes found in Pseudogomphrena and Froelichia can be derived from that in Alternanthera and froelichiella by reduction of filament length and a fusion of pseudostaminodia with the filaments.

TL;DR: The genus Nothofagus is subdivided into two subgenera, two sections and three subsections, employing characters of the pollen, cupule and vernation, together with the incidence of leaf-fall, and agrees with present geographical distribution and withCharacters of the secondary xylem.

TL;DR: The genus Oreobolus R.Br.

TL;DR: Investigations were carried out on the floral, fruit and seed biology, and the embryology of representatives of the Sapindaceae and Bombacaceae which occur in the lower canopy of the lowland rain forest of Peninsular Malaysia, finding cross-compatibility and outbreeding in all species examined.

TL;DR: Three-dimensionally preserved coalified fragments recovered from upper Wenlock to Lower Devonian strata of the Welsh Borderland and South Wales are placed in a fourth genus of the Nematophytales Lang, which differs from Prototaxites only in its possession of internally differentially thickened tubes.

TL;DR: The most significant attributes conferring fitness in contemporary polar environments appear to be phenotypic plasticity, opportunistic responses in CO2, exchange, and poikilohydrous water relations leading to considerable tolerance of desiccation and frost.

TL;DR: The gamoheterotopic origin of the angiosperm gynoecium by a transfer of the bennettitalean microsporophyll structure to the seed-bearing organ is suggested.

TL;DR: Characterization and genetic analysis of antheridiogen-insensitive mutants in the fern Ceratopteris suggested a single gene basis for each mutant, and exhibited partial or complete insensitivity to anTheridiogen.

TL;DR: A new species of Tordylium is described, and two new combinations made, and a taxonomic treatment of the genus ‘Tordylia’ is given.

TL;DR: A study of neolithic stone circles at Rollright in Oxfordshire and Castlerigg in Cumbria showed that stone movements in the recent past may be deduced from the varying sizes of lichen populations on different surfaces and approximate dates may be suggested for periods of change.

TL;DR: Comparison with pyritized tracheids in Gosslingia indicates that those in the new plant possess both annular and spiral secondary thickenings which are indirectly connected and are thus considered typical of zosterophyll water-conducting elements.

TL;DR: New material of Diplopteridium holdenii is described from the Drybook Sandstone assemblage of Upper Visean (Middle Mississippian) age at Puddlebrook, Gloucestershire, and the synangiate organ is assigned to a new genus and species.

TL;DR: Aspects of lichen morphology, for example the relation between the bionts, are discussed together with principal ways of scientific interpretation and a system of standard steps of development is proposed.

TL;DR: Comparisons with related groups support the distinctiveness of Anisophylleaceae, and suggest a close affinity with both Rhizophoraceae and the Myrtales.

TL;DR: This study of 11 Hung Kong species of Selaginella indicates that sufficient characters exist by which they may be conveniently, consistently, and conclusively distinguished, and implies that the same is true for the rest of the genus, which suffers from chronic taxonomic confusion.