508 
ANNE M. LUTZ 
and red sepals (text fig. 4).^ In 191 3 a few plants were grown from 
seeds of the Amsterdam rubrinervis, kindly sent to me by Professor de 
Vries, and the single individual which came to flower had crimped 
petals. 
0. plicatula produced an abundance of seemingly good pollen con- 
sisting of 3-lobed grains. Unfortunately, no effort was made to self 
this mutant. 
Fig. 3. 0. Lamarckiana, plant No. 4650, C. S. H., 1909. Offspring of 0. lata, 
selfed. Photographed September 19, 6:50 A. M., same day and hour as flower 
shown in Text-fig. 2. Showing absence of "crimps" in petals. 
(5) 0. delicatula, a form of especial interest, will be fully described 
in a later communication. 
(6) Type 3514 (described on page 520 of this report) may be a modi- 
fied form of de Vries's rubrinervis. While the chromosome number of 
this form has not been announced previous to this communication (un- 
This character is much more pronounced in some individuals than in others. 
