The optimum temperature and sugar concentration for germination of Corylus pollen.

All catkins were dead on the Corylus rostrata from Rhode Island.

The ideal nut of genus Corylus should combine qualities of both hazels and filberts.

Hardiness is also being sought by crossing the Rush native hazel with varieties of Corylus avellana.

Specimens of Corylus avellana, Montebello Bysance and other nuts by Dr. David Fairchild, Washington, D. C.

Storage of Corylus and Juglans Sieboldiana pollen

Both the walnut species are confined to Kashmir and Chamba states, while Corylus Colurna grows all over the Himalayas.

The former was mostly from hybrid plants produced by crossing the Rush filbert (Corylus americana) with European varieties.

Wetterhan, Mr., on Corylus.

The Corylus pollen was placed in storage March 20, 1942, and the Juglans April 12, 1942.

Mr. Wetterhan and H. Muller on Corylus 'Nature' volume 11 page 507 and 1875 page 26.

The following preliminary experiments were conducted to obtain data on germination media, forcing methods, and storage conditions for Corylus and Juglans Sieboldiana pollen.

The optimum sugar concentration for germination of Corylus pollen is around 25% by weight in 1.5 per cent agar at 25° C.

Corylus Colurna also grows between 8,000 and 11,000 feet.

1, Chinese Corylus, Brixnut and Longfellow.