245 
Anomalies in Species of Cerastium. 
The ovules, of course, are much younger, apparently in the 
embryo-sac mother-cell stage. They seem quite normally developed,, 
though their position is morphologically affected by their straitened 
circumstances. This abnormal pressure has also caused the 
depressed position of the lowest ovules in the primary carpels 
(Fig. 81, b.o.) These are normally erect, with the funicles growing 
at a similar angle to those in the same vertical row. 
&ULG. 
Fig. 82. 
Cerastium quaternellum. Floral diagram of anomalous flower. 
The only analogy I can find with this peculiar development is 
the case of Pituica granatum 1 where one or sometimes two subse¬ 
quent oligomerous whorls of carpels in the inferior ovary, are 
of normal occurrence. 
Payer 2 considered the placental column in the Caryophyllaceae 
to be of an axillary nature. The above anomaly, if such evidence 
can be accepted, seems to lend some support to this view. 
2.—Two Nucelli in One Ovule. 
Cerastium glomeratum. Thuillier. 
This ovule was a very conspicuous feature in a section through 
an ovary of the plant in question, on account of its abnormal size. 
The first idea was of two ovules grown together, but investigation 
proved that to be out of the question. 
Throughout the whole series of sections only one outer and 
one inner integument are seen to enclose both nucelli. The divi— 
1 Eichler. Bliitendiagramme, p. 489. 
2 Payer. Organographie, p. 326, Tab. 71, 73 and p. 344, Tab. 70. 
