1
The optimum temperature and sugar concentration for germination of Corylus pollen.
2
All catkins were dead on the Corylus rostrata from Rhode Island.
3
The ideal nut of genus Corylus should combine qualities of both hazels and filberts.
4
Hardiness is also being sought by crossing the Rush native hazel with varieties of Corylus avellana.
5
Specimens of Corylus avellana, Montebello Bysance and other nuts by Dr. David Fairchild, Washington, D. C.
1
The ideal nut of genus Corylus should combine qualities of both hazels and filberts.