20 
Agricultural Experiment Station 
Rotundifolia-Munsoniana Hybrid X Vitis VEstivalis 
In 1917 two flower clusters on the variety Eden were bagged and 
dusted with fresh ^Estivalis pollen. Ho fruit developed in these bags. 
In 1918 ten more flower clusters on the same Eden vine were bagged 
and treated as before. One fruit developed, from which one seed was 
obtained. This seed will be planted and the resulting seedling, if it 
survives, will he studied and duly examined for hybrid characters. 
Vitis Cordifolia X Vitis Rotundifolia 
In 1917 ten flower clusters on a native imperfect hermaphroditic 
Cordifolia vine were bagged and dusted with pollen from G-52. In the 
fall some fruit was harvested and a total of 12 seeds was obtained. 
These seeds were planted and five seedling vines resulted. Of these 
only two survived the seedbed and were set in the nursery. They will he 
described more fully in our succeeding bulletin. 
In 1918 ten flower clusters were again bagged on the same Cordifolia 
vine and later dusted with pollen from 1-1. In the fall fruit was 
harvested from each of the bags and a total of 174 seeds was obtained. 
These seeds will be planted and the resulting seedlings will be duly 
cared for. 
Vitis Rotundifolia X Vitis Cordifolia 
In 1917 fourteen flower clusters on a Scuppernong vine were bagged 
and dusted with pollen from a staminate Cordifolia vine. Ho fruit 
developed from this work. In 1918 eight flower clusters were again 
bagged on a Scuppernong vine and dusted with pollen from a staminate 
Cordifolia vine. Again no fruit developed. Here we once more encoun¬ 
ter difficulty in obtaining the reciprocal cross, Y. rotundifolia x Y. 
cordifolia. 
Vitis Cinerea X Vitis Rotundifolia 
In 1917 fourteen flower clusters on a native imperfect hermaphroditic 
Cinerea vine were bagged and later dusted with pollen from perfect 
flowered Rotundifolia vines. Ho fruits were produced in any of these 
bags. In 1918 three flower clusters on another imperfect hermaphroditic 
Cinerea vine were bagged and later dusted with Rotundifolia pollen. Ho 
fruits were produced in these hags. 
Vitis Rotundifolia X Vitis Cinerea 
In 1916 six flower clusters on P-48 were bagged and later dusted with 
fresh pollen from a staminate Cinerea vine. Ho fruits developed in 
any of these bags. In 1917 two flower clusters on H-28, one on E-19, one 
on James, five on X-32 and seven on Scuppernong vines were bagged and 
dusted with fresh pollen from a native staminate Cinerea vine. Ho 
fruits developed in any of these bags. In 1918 ten flower clusters on the 
James variety were bagged and later dusted with pollen from a native 
