Temporary grafts
Термины кактусовода
A horticultural technique in which a slow-growing cactus is "grown on" a fast-growing rootstock, then is rooted and continues to live on its own roots.
Glossary of terms
A reference section with categories and short explanations.
Turf
Термины кактусовода
The surface layer of soil interwoven with living and dead roots, shoots, and rhizomes of perennial grasses.
Tussock
Термины кактусовода
Group growth form, a collection of plant stems growing closely together and forming dense multi-headed groups.
Taxon
Термины кактусовода
An individual which, together with others related to it by varying degrees of similarity in properties and characters, makes it possible to distinguish it and its like into a particular taxonomic category; the set of characters and propert…
Taxonomist
Термины кактусовода
A specialist systematist engaged in taxonomic matters.
Taxonomic unit
Термины кактусовода
Any classificatory unit in systematics (form, genus, species, etc.).
Taxonomy
Термины кактусовода
The theory of classification and systematization of plants, often regarded as synonymous with systematics, although systematics is a broader concept, and taxonomy, as a branch of systematics, deals with the methods and rules of plant class…
Tektotype
Термины кактусовода
Fragment of the type taken for microscopic studies.
Temperature regime
Термины кактусовода
Maintaining temperature within the parameters optimal for plant development.
Terminal cephalium
Термины кактусовода
Cephalium (see below), located at the apex of the plant.
Testa
Термины кактусовода
The outer covering of a seed, its seed coat, has recently become an important subject in resolving questions of plant classification through the process of "dactyloscopic" analysis of the surface pattern.
Tissues
Термины кактусовода
A collection of cells. They are divided into three systems: the protective (epidermis), the conducting (vascular), and the fundamental (ground) — all of these are permanent tissues formed by meristematic tissues (meristems).
Tolerant species
Термины кактусовода
Species fully adapted to the biotype and biotope.
Topotype
Термины кактусовода
A specimen collected in the same locality as the type.
Transpiration
Термины кактусовода
The process of plant respiration, the plant-regulated rate of water loss during life processes. The main organs of transpiration in cacti are the epidermal stomata.
Tubular flower (tube-shaped)
Термины кактусовода
A flower with united corolla petals and calyx lobes (sepals) when the perianth is double. Often the petals have a short reflex at the tips.
Tubercles
Термины кактусовода
Outgrowths, bumps. In lichens, these are specialized outgrowths that have become organs of vegetative reproduction.
Turgor
Термины кактусовода
The turgid state of cells, tissues, and organs of a plant that gives them strength and elasticity due to the uptake of a sufficient amount of water; a characteristic of a cactus reflecting the degree of saturation of the stem with moisture.