Clés d’identification de graines
Ces clés d’identification numériques sont des outils permettant de déterminer l’appartenance taxonomique d’une graine inconnue. Les clés numériques sont plus faciles à utiliser que les clés dichotomiques traditionnelles, car elles permettent de sélectionner, dans n’importe quel ordre, les caractéristiques convenant le mieux à la graine en question et qu’elles intègrent des images et des représentations visuelles des caractéristiques afin d’aider la personne qui cherche à identifier la graine. Il est utile de connaitre la morphologie végétale, mais il n’est pas nécessaire de maîtriser la terminologie taxonomique et morphologique détaillée.
Les personnes qui utilisent la clé numérique pour la première fois sont priées de consulter le guide de l’utilisateur :
Premiers utilisateurs de la clé, veuillez vous référer au mode d’emploi:
- Clés de familles de graine
- Clé des espèces d'Asteraceae
- Clés d’identification des graines envahissantes
ID Key was developed for common plant families using LUCID builder 3.3. It contains feature descriptors describing plant families when a family identification is needed for an unknown seed or fruit.
Unlike the traditional dichotomous key, this character-driven tool allows the user to choose which descriptive features best fit the seed or fruit in hand. This aids in determining the family of the unknown seed or fruit.
Each family has a number of identification features programmed into the ID key. If a seed feature is selected that does NOT occur in a particular family, the program will eliminate it from the possibilities. The user will see the number of potential families decrease and the eliminated families increase as they work through the ID key.
Go to the Key
A key to the propagules or fruits of 102 biosecurity-relevant species of the daisy or sunflower family Asteraceae. It was produced by CSIRO scientist Alexander Schmidt-Lebuhn at the Australian National Herbarium (CANB) in collaboration with and through funding from the Department of Agriculture and Water Resources.
Go to the Key
This key is an identification tool for seeds of invasive plants. The choice of species was based on an extensive survey of seeds and seed mixtures in trade, where the seeds of these invasive species were found as contamination.
A total of 143 species is included. All features are illustrated with botanical drawings so that no knowledge of botanical terms is needed, basic knowledge of plant morphology, however, is helpful. The keys link to complete species descriptions on the Q-bank – Plants website.All species are well illustrated by photographs showing distinguishing characteristics or invaded sites. This key is also available in French and Dutch.