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  • Influence
SUMMARY (1) Variation in standing crop and in litter has been measured by seasonal sampling and sorting of the herbaceous vegetation at thirteen sites in the Sheffield region. The vegetation typesExpand
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Growth Rate and Temperature Responses in Bryophytes: II. A Comparative Study of Species of Contrasted Ecology
(1) Forty species of bryophyte of contrasted growth-form and ecology have been grown under controlled laboratory conditions using a standardized procedure. The results allow the mean relative growthExpand
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Growth Rate and Temperature Responses in Bryophytes: I. An Investigation of Brachythecium Rutabulum
(1) The growth of the perennial pleurocarpous moss Brach 'thecium rutabulum under controlled conditions of temperature, irradiance, moisture and inorganic nutrient supply was analysed. (2) Over aExpand
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An explanation of the intermittent occurrence of Physcomitrium sphaericum (Hedw.) Brid.
Abstract The spasmodic temporal distribution of the rare ephemeral moss Physcomitrium sphaericum is described and an explanation of this unusual periodicity is proposed. Field observations over 44Expand
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Polymorphism in Arrhenatherum elatius (L.) Beauv. ex. J. & C. Presl
SUMMARY In the vicinity of Sheffield, natural populations of Arrhenatherum elatius exhibit continuous variation in tiller and leaf number, leaf length and tiller angle. In the associated range ofExpand
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The status of Thamnobryum angustifolium (Holt) Crundw.
Abstract Morphological distinctions between Thamnobryum alopecurum and T. angustifoliumare maintained when the species are grown under standardized conditions, confirming the validity of the presentExpand
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Rivers of the World
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