10 THE JOURNAL OF BOTANY 
side with B. ne iniata before the ire i migration of oe a 
have not s 
Pe incre the most striking of the putative hybrids are those 
which have blue or purple flowers and_ strongly — leaves. 
a 
Thi nded f somewhat similar change ich a 
nown to occur sr 7 oe: e.g. the colour changes 
-which occur from year to r in Darwin tulips; and here also 
yea 
the bulbs being paciiisied: the question of factorial seecganing 
consequent on cross-fertilisation does not a 
B. laciniata x vulgaris does not appear és have been previously 
recorded as British; but Austrian examples have been distributed 
by Dr. Stapf, now of the Kew He rbarium, in Fl. Ex ies Amstes 
this putative hybrid Mr. J. W. White (Journ. Bot. oc. cit.; Fl. 
Bristol, 478,.1912) recognised the existence of these ae? 
but decided against their hybrid-origin. 
The definite recording of a putative hybrid which one here 
makes gives one the opportunity of appending a few general 
remarks. 
There can be no possible doubt that the occurrence S — 
mediates of the kind here mentioned between B. laciniata and 
a vulgaris would have been held by most syotematie poekiite of 
d 
which had invoked the intermediate forms. In the hazarding of 
such speculations no —_ either of eee or boldness would 
° Cf. Lotsy in Proc. Linn. Soc. pp. 73-89 (1914), and the discussion, pp. 89-98. 
