On the biomorphology of Matteuccia struthiopteris (L.) Tod.

Abstract

Currently, many flowering plants have been studied from the standpoint of the doctrine of plant life forms, their structure, development in ontogenesis, distribution, ecology, biology and evolution. Higher spores, including ferns, remain a poorly studied group. Therefore, the purpose of this work is to clarify the features of the structural organization of Matteuccia struthiopteris in order to study the specifics of the species under the conditions of introduction to the botanical garden of Vyatka State University, located in the Ladoga-Vychegodsky South Taiga biome. In the course of the research, the modular organization of the M. struthiopteris escape system was analyzed. It is represented by elementary, universal and basic modules. There are 8 variants in the structure of elementary modules. They differ in the type of frond and their modifications, as well as the presence of subordinate roots. The universal module of M. struthiopteris is a polycyclic anisotropic upper-rosette shoot. The main module of the plant is a system of monopodially increasing polycyclic upper-rosett shoot with lateral underground stolons. As a result, a short-lived sympodium of polycyclic shoots is formed. In the course of a comparative morphological description of individual structures of the plant’s shoot system, the life form of M. struthiopteris is characterized as: vegetatively mobile, yavnopolycentric, sympodially growing rosette stolon-forming herbaceous perennial with early complete morphological disintegration; hemicryptophyte.