254 BRAINERD: FOUR HYBRIDS OF VIOLA PEDATIFIDA 
along the borders of railways. On May 16, 1909, Mr. Chase, 
whose bicycle was adjusted to run on rails, traversed in 5 hours the 
24 miles between his home at Wady Petra and the town of Galva. 
In order to make the return by train, he says, ‘I could not 
stop to hunt along the way; but whenever I saw a cut-leaved 
violet that was not V. pedatifida I stopped for it.”” The twelve 
numbers of living plants collected on this trip reached me safely, 
and all have flourished in the Vermont garden. 
The status of hybrid plants in the wild is well shown by a 
detailed study of these specimens and of their offspring; for all 
but two sterile plants have been reproduced by seed. The main 
points regarding them, that have a bearing on the present problem 
of hybridism, are presented in the following tabular synopsis 
(TABLE II): 
TABLE II 
VIOLET PLANTS COLLECTED BY V. H. CHASE IN CENTRAL ee May Sig 1999) 
bial Pig ie pend 
h noe oe a pares characters Soe "Seed color A paoer 
V. pedatifida D { 1951 re ie | 7 
pedatif = 1956 | (parted) |(glabrous) ioeem | ales 
V. sororia Willd... I2Q1 | B fD 66 
educn) (villous) | hte (brown) 
V. papilionacea Ph. 1958 a D 66 
| 1950 Aa ' sterile o 
V. he psc 1952 . b | Dd 7 
sicsanaes 1949 ae ie BARE Bie 93 
1947 Aa b A . tee 
1957 Aa Bb | sterile 0 
V. pedatifida 1955 A ras Ce 4 Da 10} 
X sororia 1953 Aa c pias Br 
1954 Aa Ce Dd 8 
3 5008 AB. | gine Dd 18 
Nos. 1951 and 1956 are V. pedatifida; and I have added to the 
list, though not collected May 16, 1909, V. sororia, the other 
parent of the hybrid under discussion; specimens of this had 
been previously sent me by Mr. Chase from four stations in his 
vicinity. No. 1958 is the prairie form of V. papilionacea, named 
V. pratincola by Dr. Greene (Pittonia 4: 64. Ji 1899). These 
three are common and widespread species of the Prairie States 
from Canada to Texas; the first and third reach westward to the 
mountains of Colorado. 
Four of the numbers are the hybrid V. papilionacea X peda- 
