Affichage de 262 résultats

• 1: a treatise on some aspect of nature
• 2: the natural development of something (such as an organism or disease) over a period of time
• 3: the study of natural objects especially in the field from an amateur or popular point of view

• a branch of biology dealing with plant life

Utilisé pour : Economic Botany

• a division of botany that deals with the utilization of plants

• Natural dyes. Colours extracted from plants.

Utilisé pour : gutta-percha

• A tough plastic substance from the latex of several Malaysian trees (especially Palaquium gutta) of the sapodilla family that resembles rubber but contains more resin and is used especially as insulation and in dentistry as a permanent filling in root canals.

• 1: a widely cultivated shrub (Camellia sinensis of the family Theaceae, the tea family) native to China, northern India, and southeastern Asia and having glossy green leaves and fragrant white flowers b: the leaves, leaf buds, and internodes of the tea plant prepared for use in beverages usually by immediate curing by heat or by such curing following a period of fermentation
• 2: an aromatic beverage prepared from tea leaves by soaking them in usually boiling water

Utilisé pour : plant diseases, plant pathology, phytopathology

• a branch of botany concerned with the diseases of plants

Utilisé pour : Elm blight

• A widespread fungoid killer of elms (Ulmus species) and certain other trees, first described in the Netherlands. Spread by bark beetles, the disease has decimated elm populations throughout much of Europe and North America.

• Here are entered works on the discipline of medical botany. Works on the description and/or the cultivation of medicinal plants are entered under [Medicinal plants.]