Abstract:
Studying biodiversity of plants on the population level is impossible without describing ontogenesis of species. Creatinga unique Ontogenesis herbarium at Mari State University and official registration of its collections in the International catalogue «World Herbaria» are to solve this problem. Ontogenesis herbarium is a herbarium of plants at different levels of individual development. Ontogenetic states are distinguished by using the concept of ontogenesis discrete description with regard to morphological features-markers. Plants are referred to this or that ontogenetic state on the basis of the complex of qualitative features. The most significant of them are the following: relationship with the seed, presence of embryonic, juvenile or adult structures and seed or vegetative reproduction capability of individuals, correlation of the processes of new growth and die off, individual formation degree of the life form main features. Complete ontogenesis of perennial plants includes 12 ontogenetic states: seed, plantules, juvenile, immature, virginile (young vegetative), cryptogenerative, young (early generative), middle age (mature generative), old (later generative), subsenile, senile, dying plant. The collection of the Ontogenesis herbarium is a part of the Population-ontogenetic museum which is a scientific and educational establishment, it is presented in the form of museum exhibitions and consists of six departments: General, Theme-based, Ontogenesis first stages, Collection of fruits and seeds, Izoteka (Picture collection), Phototeka (Photo collection) and Library.
Page(s):
1495-1500
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Botany, Volume: 48, Issue: 4, Year: 2016