We know nothing about the pollination requirements of any of these _Corylus avellana_ or _Corylus americana_ hybrids. We do know that when the cross is made that the _Corylus americana_ variety must be the seed-parent. The cross doesn't work the other way around. That's about all we know about the cross-pollination of these filberts. MR. SAWYER: We have had them to bloom in April or the first week in May. MR. SLATE: The seedlings? MR. SAWYER: The seedlings. MR. SLATE: What is the origin of the seedlings? MR. SAWYER: They are the natives. MR. SLATE: The native _C. rostrata_, or _C. cornuta_ to some botanists, it seems to me has nothing that we want in the way of a nut, if we can possibly grow these other varieties, the _americana_ selections or the hybrids. It's a miserable little nut with that long, prickly husk. It's very difficult to get the nut out of it. For that reason, I have never been very much interested in it. MR. SAWYER: How is the Ryan? MR. MCDANIEL: Mr. Gellatly out in British Columbia has named several hybrids between _avellana_ and the _Corylus cornuta_. Have you seen it? MR. SLATE: No, I haven't seen it. MR. MCDANIEL: They described them in their catalog. MR. COLBY: I have preference for the Winkler hazel, as you know. I bought and put them in the greenhouse several years ago and shook the pollen on the pistils and got a full set. So I felt that was self-fruitful. MR. SLATE: That was pretty good evidence, then, that it was self-fruitful. Now, Mr. Silvis, you raise nut trees, and the climate is somewhat like that in Western New York, perhaps a little milder in the winter. What have you to say about the filbert varieties? MR. SILVIS: It's Warmer, and in spite of all the statistics of previous gentlemen, I find that _avellana_ types which I had growing in my back yard three years ago produced pollen on January the 25th. It was unseasonably warm. It was 70 degrees, and most of the pollen was dispersed. And this year I found the wild hazel pollen much later than the early types, due to the different situation. The wild ones which I had seen were growing in semi shade under tall trees, and my bushes and plants are growing in the back yard south of our house. And I think I have the largest planting in the State of Ohio, about two dozen plants, and I am in production. Besides numerous seedlings, I have the following varieties: Italian Red, Cosford, Medium Long, DuChilly. They are in bearing. Italian Red and DuChilly planted together, I believe, are good for one another for the production of nice filbert nuts. I have, from scion wood you sent me several years ago, Cosford, and now on their own roots Neue Riesenuss, and what I thought the tag said, not "Langsdorfer," but Langsberger. MR. SLATE: There is a Langsdorfer, and I think there is another variety which Langsberg is part of the name. I am not sure, I will have to look that up.