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Slide Collection (Paraclinical Sciences - Pharmacology & Toxicology): Recent submissions

  • Ornithogalum species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Various Ornithogalum spp. occur throughout the country. Also cultivated in gardens.
  • Phytobezoariasis 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    TOXIC PRINCIPLE: Mechanism of formation: • Plant hairs are apparently poorly digested by ruminal micro-organisms and accumulate in especially the abomasum. • Here under the influence of abomasal movement, innumerable ...
  • Medicago sativa and Trifolium species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Trifolium spp. as well as Medicago spp. were imported from Europe and Asia to grow as fodder for stock. The Oudtshoorn district is responsible for about 90% of the lucerne seed produced in South Africa.
  • Jatropha species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    BOTANICAL DESCRIPTION: Jatropha multifida General: A small spreading tree Leaves: The leaves are large, deeply cut (fingered or palmate) Fruit: The fruits are fleshy. Jatropha curcas General: A shrub or small ...
  • Gnidia species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: G. burchelli occurs more or less in the eastern half of the country and in the Western Cape, while G. polycephala is to be found in the drier parts of the Karoo and the Northern Cape province.
  • Pennisetum clandestinum 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • Mainly utilized as a pasture or a lawn grass, but it also escapes and grows in moist fertile places in the wild. • It grows naturally in the highlands of Kenya, Uganda, Tanzania, DRC, Ethiopia, Rwanda ...
  • Geigeria species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: G. ornativa is confined to the western drier areas of the country, while G. burkei is to be found around the Gauteng area and G. aspera is seen chiefly in the eastern Highveld of S.A.
  • Cucumis species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Widespread on disturbed soil, etc.
  • Calcium oxalate raphides 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Mostly exotic plants cultivated as garden- or pot plants. Zanthedeschia spp. occurs naturally in the wild in wet or moist places.
  • Eucalyptus cladocalyx 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: E. cladocalyx is a tree of the winter rainfall area. Trees (originally from Australia) cultivated for various purposes – timber, etc.
  • Galenia africana 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: An active invader, often in disturbed areas and over-grazed land. Most common on the western and southern edges of the Karoo.
  • Athanasia trifurcata 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Grows in the south-western Cape near the coast, preferably in sandy soils. Important species in coastal Rhenosterveld. Broad strip approximately 100km wide along southern Cape coast.
  • Paspalum dilatatum 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • It grows mostly in clay and loam soil in moist places. • Often a weed in gardens, cultivated lands and on roadsides.
  • Datura species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Possibly originating in tropical America, it is now widely distributed in South Africa, especially in disturbed soil, like seasonal river courses, cultivated lands and along roadsides.
  • Solanum tettense 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: It grows on flats or hill slopes, and on sandy, loamy or stony soil, especially where the soil is overgrazed or disturbed. Once S. kwebense becomes established in an area, no grass will grow in its vicinity.
  • Tribulus terrestris 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: It is found as a weed, widely distributed in disturbed places, old lands, overgrazed areas and along stream banks especially in dry, hot regions.
  • Lolium species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Agriculturally cultivated, also growing in disturbed places.
  • Acacia species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    Acacia erioloba, Camel thorn, Kameeldoring. DISTRIBUTION: Typically found in deep sandy soil. In dry areas along river courses and other places where water is present. It is a small to medium-sized deciduous tree of up ...
  • Senecio species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Mostly found in the central and eastern parts of the country. In open veld on mountain slopes and in marshy areas. Often invasive.
  • Cotula nigellifolia 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: It grows in damp places, near or even in water, and prefers shady areas.