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Leaf characters of various tea clones in relation to quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.J. Robbertse --- , Republic of South Africa Elsie M.A. Steyn --- , Republic of South AfricaThe leaves of ten different tea clones were investigated to explore the possibility that structural differences exist between clones and that morphological characters relate to the quality of the infusion. Our results revealed a significant negative correlation between TF-values and... -
Aspects of the anatomy and histology of the alimentary canal of the greater cane rat, Thryonomys swinderianus, with reference to its feeding physiology
Item type: Journal Article • Journal: African Zoology • Authors: A. van Zyl --- Department of Zoology and Entomology, South Africa R.V. Rambau --- Department of Zoology and Entomology, South Africa M. van der Merwe --- Department of Zoology and Entomology, South AfricaAspects of the anatomy and histology of the alimentary canal of Thryonomys swinderianus were studied to gain a better understanding of this animal’s ability to digest large quantities of fibre. Morphometric measurements of the gut regions were taken with the... -
Dissimilar stem and leaf hydraulic traits suggest varying drought tolerance among co-occurring Eucalyptus grandis × E. urophylla clones
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Casparus J Crous --- Department of Plant and Soil Sciences, South Africa Izette Greyling --- Department of Microbiology and Plant Pathology, South Africa Michael J Wingfield --- Department of Plant and Soil Sciences, South AfricaIn South Africa, there is currently a phenomenon where a Eucalyptus grandis × E. urophylla clone is dying on a large scale, whereas co-occurring clones in the same plantation area remain healthy. No primary biotic pathogen has been isolated from... -
Letheobia pauwelsi, a new species of blindsnake from Gabon (Serpentes: Typhlopidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Van Wallach --- Harvard University, USAA new species of African blindsnake related to western Letheobia caecus and eastern L. acutirostratus is described from Gabon. It differs from both species in having an hourglass dorsal rostral shape, a ventrally angled corneal cutting edge, and a unicameral... -
Cranial osteology of the African gerrhosaurid Angolosaurus skoogi (Squamata; Gerrhosauridae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: HollyA. Nance --- The University of Texas, USAPhylogenetic relationships both within and between the scincomorph families Gerrhosauridae and Cordylidae are in need of re‐examination. Currently the basal gerrhosaurid is unknown, although Angolosaurus skoogi previously was proposed as the sister taxon to mainland African gerrhosaurids. Many details of... -
Aprosdoketophis andreonei, a new genus and species of snake from Somalia (Serpentes: Colubridae: Boiginae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Van Wallach --- , USA Benedetto Lanza --- Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia “La Specola”, Italy Annamaria Nistri --- Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia “La Specola”, ItalyAn aglyphous colubroid snake representing a new genus and species is described from Somalia. It is a terrestrial form that inhabits xerophytic woodlands. A comparison with both African and extralimital genera indicates that its relationships lie with the opisthoglyph Boiginae... -
A visceral synapomorphy of Scolecomorphus Boulenger, 1883 (Amphibia: Gymnophiona: Scolecomorphidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mark Wilkinson --- The Natural History Museum, UK DavidJ. Gower --- The Natural History Museum, UK SimonP. Loader --- University of Basel, Switzerland Hendrik Müller --- Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich Schiller Universität Jena, GermanyWe describe the distinctive but previously overlooked shape and position of the fat bodies of some scolecomorphid caecilians. Anteriorly positioned, finger-like fat bodies projecting into the coelom from narrow bases in the genital mesenteries are found in both sexes of... -
Notes on lung development in South African ghost frogs (Anura: Heleophrynidae)
Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Jackson R Phillips --- , USA Jens Reissig --- , South Africa Gary Kyle Nicolau --- , USALungs are a prototypical trait of most tetrapods, but some amphibians have become secondarily lungless over evolutionary time. Anuran (frog) tadpoles offer an opportunity to examine lung loss from an evolutionary perspective, because there are many independent instances where lungs... -
Changes in anatomical characteristics of Falcataria moluccana wood due to Uromycladium tepperianum infection
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Widyanto Dwi Nugroho --- Universitas Gadjah Mada, Indonesia Brian Nurharjadi --- Universitas Gadjah Mada, Indonesia Shofi Rukhama --- Universitas Gadjah Mada, Indonesia Hairi Cipta --- Universitas Gadjah Mada, Indonesia Sri Rahayu --- Universitas Gadjah Mada, IndonesiaSerious problems have occurred on Falcataria moluccana plantations because of gall rust disease caused by Uromycladium tepperianum. The disease inhibits tree growth, reduces wood quality, and can cause tree mortality. The presence of galls is a notable symptom of this...