262 Miscellaneous. 
baselloides, and of the Clematites, which is wide open in flowering, 
becomes still more widely spread after fecundation. 
3. REFLEXED (postfl. reflewa), presented by the Begonia, espe- 
cially B. semperflorens, and by Crassule spathulata and cotyledon. 
4, SHRIVELLED (postfl. crispa).—The petals retain their posi- 
tion and form, but become shrivelled in drying. Ex.: Pavia, Del- 
phinium, Lythrum, and the corolla of the Campanula, Linarie, &c. 
Sometimes the perianths in shrivelling become twisted irregularly : 
this modification of the shrivelled postfloration is presented by 
Clerodendron. 
5. Puury (postfl. pulposa).—In Tradescantia virginica the petals 
lose their membranous aspect and become pulpy. 
6. Curuep or Circinate ( postfl. circinata).—The petals of the 
Capparideze (Capparis, Cleome, Gynandropsis), which are twisted in 
zestivation, become rolled into a crook after anthesis. This is also 
the case with the corolla of the Peruvian Heliotrope and of Verbena 
Melindres, chamedrifolia, and tenera. 
7. Recircinate (postfl. recircinata).—In Mesembryanthemum 
and Cryptostemma calendulaceum the petals and ligule become 
rolled into a crook, but from within outwards, or in an opposite 
direction to the circinate form. 
8. ConpupticatTe (postf. conduplicata), one of the lateral 
halves of the inner surface of the petal applying itself to the other. 
Ex. Ornithogalum Ecklont. 
Postfloration may render some service to classification, especially 
in the limitation of genera. Authors are not agreed as to the generic 
denomination of the Agrostemma Celi-rosa of Linné. Desrousseaux 
has placed it in Lychnis; it is a Silene with MM. Grenier and 
Godron, and a Viscaria with others. It is distinguished from 
Silene by the postfloration of its petals, the two borders of which 
roll inwards, whilst that of Silene is shrivelled and contorted. 
A Plumbagineous plant has been alternately described under the 
names of Plumbago Larpente and Valoradia plumbaginoides. It 
presents the same postfloration as Plumbago, namely the rumpled 
arrangement of the limb of the corolla, which is in favour of its being 
united with that genus. 
The postfloration of the stamens deserves a special study. It is 
remarkable in the genus Aloé, in which the filaments become undu- 
lato-crispate in consequence of an unequal shrinking of the tracheal 
system and of the long cells which surround it. The three first- 
formed stamens become shrivelled before the others.—Comptes 
Rendus, 26th Dec. 1865, pp. 1177-1179. 
Observations on the part played by the Nucleus in Animal Cells. 
By M. Bavpiant. 
In 1864 the author detected in the ovules of several animals cer- 
tain transparent cavities or vacuoles seated in the germinal spots, 
