126 THE JOURNAL OF BOTANY 
descriptions being imperfect, (>) the synonymy (often the most 
important part of the description) being contradictory, or (c) 
that in doubtful cases, so far as possible, the description in con- 
cut off; and, as regards group 3, that unless the evidence is hope- 
lessly vague, or contradictory, the names should be retained for the 
species for which the weight of evidence points to their having been 
intended. 
Ar the meeting of the same Society on Feb. 6th, Messrs. H. 
and J. Groves exhibited a series of British hybrid Batrachian 
Ranunculi, including R. peltatus x Lenormandi (R. Hiltont H. & o- 
Groves), R. Baudotii x Drouetii, R. Baudotii x heterophyllus, and 
R. peltatus x trichophyllus, together with specimens of their sup- 
two parents, having some of the distinctive characters of each, but 
with a more vigorous vegetative growth, and (2) by the fruit being 
d 
being fixed, the remaining part of the root and the hypocotyl 
became curved in varying degrees, due to the continued stimu- 
lation of the root-tip. The result has been confirmation of the 
observations made both by Czapek and by Pfeffer. 
