Slide Collection (Paraclinical Sciences - Pharmacology & Toxicology)
Permanent URI for this collectionhttp://hdl.handle.net/2263/8082
A selection of slides created by lecturers in the Section of Pharmacology & Toxicology, Dept of Paraclinical Sciences, University of Pretoria. The focus of the collection is the botanical description and distribution of the plants in Southern Africa and also the clinical signs, necropsy, syndromes and treatment of affected animals. The slides were also published on a CD-ROM : Botha, CJ & Venter, E 2002, 'Plants poisonous to livestock in Southern Africa (CD-ROM)' University of Pretoria, Faculty of Veterinary Science, Dept. of Paraclinical Sciences, Section of Pharmacology and Toxicology, Pretoria, South Africa.
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Item Smodingium argutumBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Occurs in shaded valleys, often Acacia dominated thorn bush in low rainfall areas.Item Opuntia ficus-indicaBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Originally from central Mexico, it is now to be found mostly in the drier regions of the country, along the coast, etc. Also cultivated as garden subjects and for drought feeding. Botanical description: General: Prickly pear is a branching shrub or tree with fleshy leaf-pads that are flattened, 1 - 3 cm thick, varying from heavy spined to spineless. Flowers: During November plants are covered with bright yellow to orange flowers that grow from the margins of the leaf-pads. Fruit: The succulent edible fruits are yellowish when ripe. They are covered with clusters of tiny spines.Item Vicia villosaBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Imported plant. Cultivated as pasture in the Western and Eastern Cape and Northern province.Item Nolletia gariepinaBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: To be found in Namibia and the Northern Cape province. Growing on sand among rocks and in rock crevices on hills and mountain slopes. Almost always in association with granite.Item Euphorbia speciesBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Occuring at medium to low altitudes in various types of deciduous woodland, most frequently on rocky koppies and often associated with termite mounds.Item Crotalaria burkeanaBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Occurs in mixed grassland or open sandy areas. Spreads rapidly in disturbed soil or trampled veld.Item Salsola tuberculatiformisBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Occurs in a wide range of dry habitats – plains, depressions and brackish soil. Very drought resistant.Item Agave americanaBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Originally from South America. Planted for drought feeding, etc. Widespread.Item Rumex speciesBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Growing on disturbed soil or sometimes growing together with artificial pastures on cultivated land.Item MesembryanthemaceaeBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Mostly to be found in the drier regions of the country, along the coast, etc. Also cultivated as garden subject.Item Crotalaria speciesBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Usually in grassland. C. dura grows from sea level to 900 m above, while C. globifera can grow up to 1 500 m above sea level.Item Oxalis speciesBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Widely distributed. Growing on nearly all soil types and under most climatic conditions. More than 200 species are found in South Africa; only two are exotic. Mostly in damp conditions in high rainfall areas. Often found as weeds in gardens.Item Fusarium graminearumBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Grows on different grains, e.g. maize and sorghum. Maize is produced mainly in the North-West, north-western, northern and eastern Free State, the Mpumalanga Highveld and the Kwazulu-Natal Midlands.Item Exotic Acacia speciesBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Originally from Australia. Now aggressive invader species to be found all over the country.Item Quercus roburBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Most common and best-known oak species in South Africa. Cultivated in colder, moister climatic areas – problematic in eastern and south western Cape and highveld of Kwazulu- Natal and Mpumalanga. Botanical description: General: Large trees. Exotic, cultivated in gardens, on farms, etc. Leaves: Deciduous. Alternate, simple, deeply lobed leaves. Slightly hairy and bright green when young. Later in the season they become smoother and darker. Fruit: Typical conical acorn and cup.Item Grasses and weedsBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)Aristida spp. Three-awned grass, Steekgras. DISTRIBUTION: Usually to be found in disturbed, eroded soil or on hard bare gravelly soils.Item Solanum speciesBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: This family of plants is widely spread all over the country, often in places where the soil has been disturbed.Item Sesbania puniceaBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Originally from South America, it is an escaped exotic and a declared weed that has to be eradicated in South Africa. Found especially along watercourses and on disturbed soil.Item Ricinus communisBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Commonly found along roadsides and watercourses and disturbed soil. It is planted in gardens and cultivated for medicinal purposes. A declared invader plant that has to be eradicated. Originally from tropical Africa.Item PoaceaeBotha, C.J. (Christoffel Jacobus); Venter, Elna (2002)DISTRIBUTION: Widespread grasses that occur naturally in all kinds of veld types.