280 Scientific Intelligence. 
ner of fertilization. But this had been wholly overlooked “in such com- 
mon garden-flowers as LZ. grandiflorum and avum,” until Mr. Dar- 
win detected it, and worked out the case to the striking results which 
we record below, chiefly in his own words. 
“The crimson Linum grandiflorum presents two forms, occuring in abou' 
equal numbers, which differ little in structure, but greatly in function. The 
a — stamens, and pollen (ex amined wor and distended _ oe 
like orms. The difference is co to the pistil: in the one 
sa which I will i “short-styled,” the sceonae: formed by the united styles 
and the short stig = ene is about half the length of the whole neg 
five stigmas in the short-styied pep diverge greatly from each other, and pass 
out between the filaments of the stamens, and th lie within the tube of the 
anthers, or reaching up only to about. thei eee Nevertheless, there is 
never the slightest difficulty in distinguishing between the two forms; for, be- 
sides th ence in divergence, the stigmas of the short-styled form never 
e bz 
orter stigmas, the papilla are more crowded and darker-colored than in those 
with the longer stigmas. Considering the slight and variable differences be- 
tween the two forms of this Linum, ” is not surprising that they have been 
“In 1861, I had eleve n plants growi in my garden, eight of which were 
long-styled, and only thre short-styled ‘y Two ; ia fine Sonp-etyiel plants 
Ina e a screen 
are stigma; and it was late in the season, namely, September 1 
gether, to expect any result from this trial seemed almost childish. _From my 
experiments, however, on Primula, which have been laid before this Society 
i j i make the trial, 
ber of flowers, but the germens of not even one swelled. 
though their stigmas i so densely covered with their 
en. 
er plants, six long-styled and three short-styled, grew in the 
wer. Ai en. Four of the long-styled produced m no ab 
ut the sere long-styled plant grew 80 
¢ their hes touched ; — produced 
