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Showing papers in "Botanical Journal of the Linnean Society in 1990"


Journal ArticleDOI
Germund Tyler1
TL;DR: The literature on heavy metals in bryophytes is reviewed, including mechanisms of metal uptake, retention, toxicity and tolerance and interspecies differences in particular are discussed, including the development of extreme tolerance encountered in certain taxa.

294 citations


Journal ArticleDOI
TL;DR: This paper considers a separate aspect of moss growth and production from the perspective of broad macroclimatic patterns, finding that moss populations are dynamic, highly active entities and can tell us not only about the mosses themselves but also about the systems in which they live.

192 citations


Journal ArticleDOI
TL;DR: A summary is given of recent laboratory work on the internal redistribution of elements in Rhytidiadelphus squarrosus and of field experiments involving fertilizer addition to Pseudoscleropodium purum; their significance is assessed.

182 citations


Journal ArticleDOI
TL;DR: Hypodermal Casparian bands were found in roots of hydrophytic, mesophytic and xerophytic species and in members of primitive as well as advanced families, suggesting that this feature has been retained by many species in this group.

182 citations


Journal ArticleDOI
TL;DR: Most bryophytes, including species of well-illuminated habitats, function in effect as shade plants, with low chlorophyll a/b ratios, and become light-saturated at relatively low irradiance.

164 citations


Journal ArticleDOI
TL;DR: Bryophytes are involved in a variety of competitive, parasitic, symbiotic, mutualistic and as yet unspecifiable interactions with vascular plants, algae, fungi, lichens, cyanobactcria and autotrophic and heterotrophic bacteria, in only very few cases have these interactions been analysed functionally.

154 citations


Journal ArticleDOI
TL;DR: In this paper, a comparison between the range of strategies displayed by bryophytes and that already described for vascular plants is made, and some of the implications of these strategy theories for the role of Beryophytes in the structure and dynamics of plant communities.

112 citations


Journal ArticleDOI
TL;DR: The facility for vegetative reproduction and reproduction by spores was compared in four common mosses by observations on naturally occurring spores, sporclings and juvenile shoots combined with experimental field plantings, showing contrasting life-history strategies shown by the four species.

84 citations


Journal ArticleDOI
TL;DR: In this paper, a review of the literature on bryophyte communities is presented, particularly those involving niche breadth and overlap, and special attention is given to niche diversification in Sphagnum, Splachnaceae, and ephemeral Bryophytes.

82 citations


Journal ArticleDOI
TL;DR: The occurrence of the Spondias-type in Canarium, a member of the sister group Burseraceae, suggests that this type is plesiomorphic in the Anacardiaceae, and the presence ofThe Anacardium- type in Blepharocarya and Orthopterygium Qulianiaceae further supports the inclusion of these taxa in the ANACardiaceae.

77 citations


Journal ArticleDOI
TL;DR: HUSAIN et al. as mentioned in this paper performed a micromorphological study of some representative genera in the tribe Saturejeae (Lamiaceae) and showed that the structure of the nutlet surface and leaf indumentum can provide useful additional character combinations in delimiting these closely related genera.

Journal ArticleDOI
TL;DR: The neobasic number, n= 120, appears to have arisen through various combinations and permutations of these, theoretically 2401 routes; only a relatively few of these routes exist today, suggesting that extreme selection has been exerted against the majority, and further suggesting that Ophioglossum represents an evolutionary dead end through repeated cycles of polyploidy and is possibly at the verge of extinction.

Journal ArticleDOI
TL;DR: It is suggested that mangosteen is an allopolypoid derivative of these species which arose as a female from a single hybridization event in cultivation, and which has since reproduced asexually.

Journal ArticleDOI
TL;DR: It is considered that facultative agamospermy renders the genus Garcinia particularly suitable for the development of new types of fruit, as well as unusual phenomena, which are discussed in the context of the lifestyle of a tropical forest tree.

Journal ArticleDOI
TL;DR: The approaches which have been used and results obtained from monitoring bryophytes in urban and industrial habitats are described, illustrating the increasing interest in low cost methods for monitoring contamination.

Journal ArticleDOI
TL;DR: Microscopical investigations on the detached cells of the stigma after compatible and incompatible pollinations, suggest that the incompatibility response is probably controlled by these cells.

Journal ArticleDOI
TL;DR: The data support the conclusion that the ‘Cotuleae’ is an unnatural assemblage: Cotula, Leptinella, Nananthea and Soliva appear to form one close-knit group, and Dimorphocoma, Elachanthus and Isoetopsis another, while the remaining genera are highly diverse.

Journal ArticleDOI
TL;DR: It can be stated that phytomass of epiphytic bryophytes in equatorial latitudes increases from the tropical lowlands to the foreslline by gradients of factors such as precipitation, humidity, temperature and desiccation, or combinations of these.

Journal ArticleDOI
TL;DR: Shoot extracts on starch-wafer substrate appeared to be more acceptable than intact shoots suggesting that the cell wall provides the barrier to free consumption, and the form and location of a possible feeding deterrent is discussed.

Journal ArticleDOI
TL;DR: Cultivation experiments indicate that protonema and shoots of Splachnum sphaericum have a greater tolerance for concentrated dung liquid than the control species Physcomitrium pyrij'orme, Funaria hygrometrica and Pohlia nutans.

Journal ArticleDOI
TL;DR: It is unfortunate, therefore, that the emphasis has shifted away from bryophyte autecological studies at important northern sites where increasing human impact is threatening this fragile biome type.

Journal ArticleDOI
TL;DR: The ‘wet’ stigma and binucleate pollen suggest that Garcinia arose from hermaphrodite plants with a gametophytic self-incompatibility system and is considered as ‘steady state’ strategists.

Journal ArticleDOI
Lu An-Ming1
TL;DR: A preliminary cladistic analysis was undertaken to evaluate the relationships between families of the superorder Lamiiflorae sensu Dahlgren, and several family interrelationships could not be resolved, although several groups were common to all three cladograms.

Journal ArticleDOI
TL;DR: None of the members of section Solanum appears to be a weed of significant agronomic importance in this area, except in a few localized areas.

Journal ArticleDOI
TL;DR: Water relations of bryophytes must be understood along at least four dimensions: hydration/dehydration frequency; hydration duration; dehydration duration; degree of water loss; and biomass-dependent functions such that large colonies of b Bryophytes may maintain hydration longer than smaller colonies.

Journal ArticleDOI
TL;DR: Patterns of leaf exudate compounds separated by two-dimensional thin-layer chromatography and revealed by staining with Fast Blue B have been obtained for all but one of the Aloe species in Reynolds' Group 19 and Series Arborescentes.

Journal ArticleDOI
TL;DR: Embryological features suggest that Bretschneidera is distinct from any of the taxonomically related families but resembles both Hippocastanaceae and Sapindaceae (Sapindales) more closely than Moringaceae or Capparaceae (Capparales) which have been considered alternative allies, supporting most of the modern taxonomic treatments that place Bretsnidera as a separate family in Sapindales.

Journal ArticleDOI
TL;DR: The effects of nitrogen and sulphur pollutants on Sphagnum species are used to make broad generalizations as to how other bryophyte species might respond to these pollutants and to explain known effects of atmospheric pollution on bryphyte communities.

Journal ArticleDOI
TL;DR: An analysis of the geographical distribution of the closest relatives of these five taxa leads to hypotheses on their geographical origin, which suggest that P. rhoeas originates from the eastern border of the Mediterranean, where it might have differentiated only under human influence.

Journal ArticleDOI
TL;DR: Observations in natural and experimental situations suggest that the window of Diascia section Racemosae is used as an orientation cue by oil-collecting bees.