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Plant cover and vegetation structure were examined at two inland coastal sage scrub sites differing in fire history and use by California gnatcatchers. Salvia mellifera and Eriogonum fasciculatum dominated one site; shrub cover on gnatcatcher– occupied plots averaged 50 percent greater than on unoccupied plots. At the other site, gnatcatcher-occupied plots had high cover of Artemisia californic...

An investigation was carried out to study the AM fungal association in Sida cardifolia from different parts of Karnataka. AM colonization in the roots, spore load and Phosphatase activity in the root zone soil collected from different parts of Karnataka were determined. AM root colonization was more in the roots of Sida cardifolia collected from Kolar and least in case of root samples collected...

Lady's slipper orchids (Cypripedium spp.) are rare terrestrial plants that grow throughout the temperate Northern Hemisphere. Like all orchids, they require mycorrhizal fungi for germination and seedling nutrition. The nutritional relationships of adult Cypripedium mycorrhizae are unclear; however, Cypripedium distribution may be limited by mycorrhizal specificity, whether this specificity occu...

Lady’s slipper orchids ( Cypripedium spp.) are rare terrestrial plants that grow throughout the temperate Northern Hemisphere. Like all orchids, they require mycorrhizal fungi for germination and seedling nutrition. The nutritional relationships of adult Cypripedium mycorrhizae are unclear; however, Cypripedium distribution may be limited by mycorrhizal specificity, whether this specificity occ...

Spores density and mycorrhizal colonization were studied in twenty-five rhizosphere samples of some selected soils and plant roots from fertile and marginal soils of North West Frontier Province of Pakistan. All tested plants are considered to be mycorrhizal plants. Highest number of mycorrhizal spores was found in Potatoes, Barley, rice and chickpea (>4000 spores kgG soil) in fertile soils. Fi...

This is a preliminary report on a project to characterize the historic species composition of coastal sage scrub vegetation in southern California using plot data collected between 1929 and 1934 by the USDA Forest Service's Vegetation Type Map (VTM) survey. Records and maps from a large historic data set collected for the VTM survey were converted into a digital database and GIS coverage. Histo...