'Fraxinus excelsior' diaporamas de présentation

Scrophulariales

Scrophulariales. Oleaceae. Scrophulariaceae. Orobanchaceae. Bignoniaceae. Pedaliaceae. Scolophulariaceae. Antirthinum. Digitalis. Verbascum. Linaria. Veronica. scrophularia. Antirrhinum majus. ?? ?????. Antirrhinum majus. Digitalis purpurea. ?? ????????? ??????. Digitalis.

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Ash Dieback Chalara fraxinea

Ash Dieback Chalara fraxinea. Alistair McCracken & Louise Cooke Applied Plant Science & Biometrics Division November 2012. Ash ( Fraxinus excelsior ). Chalara dieback of ash. Chalara fraxinea (asexual) Anamorph of new species called : Hymenoscyphus pseudoalbidus (sexual). Ash Dieback.

589 views • 31 slides

Colonization, Survival and Competition of Young Trees

Colonization, Survival and Competition of Young Trees. Introduction I. Annual plants : Life span : one growing season Have to germinate, grow and bloom fast to produce seeds before the end of growing season Perennial plants : Life span: two to more years Plenty of resources: rapid growth

217 views • 15 slides

How can we discover environments of the distant past?

310 views • 11 slides