Corylus
by Science Staff
Not peer reviewed
Last modified: 07/07/2010
Nomenclature
Corylus L., Sp. Pl. 998. 1753. Gen. pl., ed.5, 433. 1754. LECTOTYPE: Corylus avellana L. designated by Britton & Brown (1913).
Key to the species of Corylus
1. Petioles hairless or with glandless hairs; mature involucre 4-7 cm, with a
long beak...Corylus
cornuta
1. Petioles with glandular hairs; mature involucre 1.5-3 cm,
without a long beak...2
2. Involucre nearly twice as long as nut, with laciniate
lobes...Corylus americana
2. Involucre
shorter or slightly longer than nut, with shallow lobes...Corylus
avellana