Search results
Results from the WOW.Com Content Network
The species was first described scientifically by American mycologist Howard James Banker in 1913. [2] Italian Pier Andrea Saccardo placed the species in the genus Hydnum in 1925, [3] while Walter Henry Snell and Esther Amelia Dick placed it in Calodon in 1956; [4] Hydnum peckii (Banker) Sacc. and Calodon peckii Snell & E.A. Dick are synonyms of Hydnellum peckii.
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
Lathraea squamaria, the common toothwort, is a species of flowering plant in the family Orobanchaceae.It is widely distributed in Europe and also occurs in Turkey. It is parasitic on the roots of hazel and alder, and occasionally other trees, and represents the second occasion on which a member of the family Orobanchaceae lost the ability to photosynthesize and became parasitic. [1]
Among adults with fully developed dentition, numerous techniques have been developed for age estimation by looking at various characteristics including periodontosis, cementum apposition, tooth-root translucency, [3] root resorption, secondary dentine deposition and the attrition of the occlusal surface. [10] The tooth-root translucency method ...
A root canal is the naturally occurring anatomic space within the root of a tooth.It consists of the pulp chamber (within the coronal part of the tooth), the main canal(s), and more intricate anatomical branches that may connect the root canals to each other or to the surface of the root.
Cementum is a specialized bone like substance covering the root of a tooth. [15] It is approximately 45% inorganic material (mainly hydroxyapatite), 33% organic material (mainly collagen) and 22% water. Cementum is excreted by cementoblasts within the root of the tooth and is thickest at the root apex. Its coloration is yellowish and it is ...
The periodontium is the tissue that surrounds and supports the teeth. It includes the connective tissue and overlying keratinised membrane lining the oral cavity that surrounds the teeth, the periodontal ligament, cementum which provides a protective covering for the root surface and supporting alveolar bone. [5]: 269
Common toothwort (Lathraea squamaria) is parasitic on the roots of hazel and alder, occasionally on beech, in shady places such as hedge sides. Lathraea squamaria is widespread in Europe. The common toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy ...