Cardinal and Rubeo derivities. W. R. Dykes and derivities (Happy Days, 
Isabellina, etc.), and our own Cool Lemonade which is from two plicatas, Elec- 
tra and Bonanza. Dr. Loomis, John Ohl and C. G. White suggest using diploids 
(24 cromosomed varieties) of pallida blood (such as Clara Noyes, Trostinger, 
Eros, Pink Ruffles, No-we-ta, Beverly, Elizabeth Ann, etc.) as pod parents 
when using the pollen of the oncocyclus species and their pure bred seedling 
offspring. We would suggest, too, using Purissima, Easter Morn and Snow 
Flurry as pod parents for these same oncocyclus and their fertile decendents 
since these varieties set seed with great ease. We hope you find these notes of 
interest. 
Keeping the Pollen, 
_We have found a pollen-file very handy to keep throughout the bloom- 
ing season and we carry this with us everywhere we go. I make small en- 
velopes from half sheets of typing paper folded to fit into a narrow but fairly 
long box. We have found a small cheese-box ideal. 
We have kept pollen (on their stamens, for easy handling and hybri- 
dizing) six weeks with good results at the end of that period. It is not neces- 
sary, here, in this somewhat arid state to keep pollen in closed capsules or 
under refrigeration. 
(3) 
