SOLUTION OF CALYX FROM PISTIL. 79 
of the development of the flowers in Pomacee as given 
by Payer, Caspary, and others, so that the flowers 

Fie. 36.—Section through Apple Fie. 37.—Calyx detached from 
blossom, showing detachment of carpels in Apple. 
ealyx from ovaries, absence of 
dilated flower-stalk, &e. 
above described would owe their deficiency of the swollen 
receptacle to an arrest of development. M. Germain 
de Saint Pierre, among other malformations of the rose, 
presented to the Botanical Society of France in 1854 two 
specimens which are of special interest as relating to 
this contested point. In the one, the swollen portion 
beneath the flower was surmounted by five perfect 
leaves, as, indeed, is not infrequent in such malforma- 
tions; here, then, the calyx could have had little or no 
share in the production of the swelling in question. In 
the other, the swollen portion was actually above the 
insertion of the sepals here represented by five perfect 
leaves. 
On the other hand, M. Planchon’s specimen of the 
Quince before alluded to, not to mention other in- 
stances, tends to show that the bases of the sepals do 
sometimes enter into the composition of the pome. 
And, indeed, in many of these cases it would be im- 
possible to say where the axial or receptacular portion 
ended, and the foliar portion began. As both from 
1 «Bull. Soc. Bot. Fr.,’ 1854, p. 303. 
