TRYSOMIC GIANT IMPERIAL 
BRANCHING TYPE 
New. This is the first Trysomic Stock ever offered. 
Based on studies commenced by Dr. H. B. Frost at 
Cornell University in 1915 and furthered through 
the 20’s, the genetic theory of Trysomic doubles in 
Stocks was developed and proved by 1930 to be 
capable of producing 85% doubleness from seed. 
85% or 
more double flowering plants when sown from seed. 
In addition to this desirable trait, the percentage 
of any planting can be increased up to 100% at the 
four-leaf seedling stage as at this period of growth 
the young singles are noticeably weaker and can be 
readily distinguished from the vigorous double flow- 
ering plants. 
The Trysomic Stock offered produces 
Bright Rose Lilac-Lavender 
Fiery Red Salmon-Pink 
White Azure-Blue 
Choice Mixed 
Each of the above: 1 tr. pkt. $1.00; tr. pkt. $1.75; 
lg oz. $2.75; 14 oz. $5.00; oz. $18.00. 
Giant Calumn, Non-Branching 
This type produces one enormous spike 2 to 3 feet in 
height and is especially adapted for greenhouse culture, 
as the plants can be grown close together. 
LAVENDER, BLUE and PURPLE 
Silver Lilac. (Ball No. 1.) Lilac-lavender. 
Ball Blue No. 3. Rich dark lilac-blue. 
Purple Heart No. 21. New brilliant violet-purple; large 
flowering, and long stemmed. 
PINK, ROSE and RED 
Pacific Pink. New. A distinct new break in this Stock. 
This is the first pure true pink Stock developed. Ex- 
tremely fine under artificial light. Vigorous spikes 
possess well-spaced flowers. This is a definite “must’’ 
for the florist trade. Y tr. pkt. $1.00; 
tr. pkt. $1.75; Ye oz. $2.75; 14 oz. $6.00; oz. $18.00. 
American Beauty. Rich deep American Beauty or car- 
mine-rose. 
Ball Pink No. 11. Fine clear rose-pink. 
Ball Rose-Pink No. 14. Deeper than No. II. 
grower. 
Strong 
Ball Supreme No. 22. Fine heavy spikes of rich silvery 
rose. 
Chamois Pink. (Ball No. 9.) Chamois-pink. 
illusion. (Ball Ruby.) Scarlet-red. 
Malmaison Pink Improved. Long spikes of soft shell- 
pink. 
Rose-Pink. (Michell.) Brilliant rose-pink. 
STOCK, Column—Non-Branching 
WHITE 
White Giant. A new and outstanding white non-branching Stock a week to ten 
days earlier. he extra large florets are a pure glistening white on a tremendous 
flower spike. 
Avalanche is definitely the earliest of all White Column Stocks. The flower spike 
is particularly long and massive with very double individual florets. 
Ball White No. 2. Long-stemmed white, slight pink blush. 
Ball White No. 16. Pure white, semi-tall, compact grower. 
Gardenia. Shimmering glistening white. 
MISCELLANEOUS VARIETIES 
Ball Apricot No. 20. A strong-growing buff with a faint pink tinge. 
Yellow Wonder (Gold Standard). The color is rich creamy yellow. 
Florist Mixture. 
Each of the above (except where noted): 14 tr. pkt. 75c; tr. pkt. $1.25; 
4 on. $2.75; oz. $10.00. 
HENRY F. MICHELL COMPANY, Phone Lombard 3-5620, Philadelphia 5, Pa. Pei 
