19141 
GATES—SOME (ENOTHERAS FROM CHESHIRE AND LANCASHIRE 395 
squarish). Two other plants agreed exactly with Œ. Lamarck- 
iana except in the buds. The petals were 35 mm. long x 48 
mm. broad, emarginate, anthers reaching nearly to top of stigma 
lobes, sepals green and with the same pubescence as in Œ. 
Lamarckiana, from which these two plants therefore differed 
only in the somewhat smaller flowers and shorter style. One 
mut. nanella also occurred in this culture, and several other 
slightly aberrant individuals, including a plant with broadly 
elliptical foliage. The ‘‘Lamarckiana foliage” was also more 
variable than in cultures from de Vries, this no doubt being due 
to the continued inbreeding in the latter case. 
It will be understood that the new forms described here are 
scarcely to be looked upon as ‘‘new species” according to the 
usual interpretation at the present time. They merely represent 
a partial analysis of a complex interbreeding colony of forms, 
and their variability is one of their most interesting features. 
Nearly all if not all the differences observed are inherited, how- 
ever, and the mutations can in many instances be separated 
from the characters arising through hybridization. The forms 
are, moreover, as distinct from each other as many species of 
(Enothera. 
In conclusion, I am indebted to the Missouri Botanical Garden 
and the John Innes Horticultural Institution for the facilities 
provided for growing the plants, and to Mr. Е. J. Allard for 
several of the photographs. А portion of the expenses of my 
second visit to Lancashire was defrayed by a grant from the 
Royal Society. 
LITERATURE CITED 
Bailey, С. (07). De Lamarck’s evening primrose (GZnothera Lamarckiana) on the 
sandhills of St. Anne's-on-the-Sea, North Lancashire. (Address, Annual Meeting 
Manchester Field Club.) 1-28. pl. 1—6. 1907. 
Gates, В. В. (710). Abnormalities in (Enothera. Rept. Mo. Bot. Gard. 21: 175-84. 
pl.29-31. 1910. 
, (11). Studies on the variability and heritability of pigmentation in Gino- 
thera. Zeitschr. f. induct. Abst.- u. Vererbungsl 4: 337-72. рі. 6. f. 1-6. 
1911. 
‚ (12). An onagraceous stem without internodes. New Phytologist 11: 
50-53. pl. 2-8. 1912. 
, (13). A contribution to a knowledge of the mutating cenotheras. Trans. 
Linn. Soc. Bot. 8: 1-67. pl. 1-6. 1913. 
