66 Miscellaneous. 
September 4th.—Edward Doubleday, Esq., V.P., in the Chair. 
Dr. Becker of Wiesbaden exhibited a new species of Papilio from 
South America, and also a specimen of the very rare P. Protodamas. 
Mr. S. Stevens exhibited specimens of Sibinia arenaria, Mononychus 
Pseudacori, Cicindela germanica, Micronyx pygmea, &c., recently 
captured in the Isle of Wight; also of Apion Schénherri, Choragus 
Sheppardi, Mecinus circulatus, and various Lepidoptera, the latter 
captured by daubing sugar upon the trunks of trees in the neigh- 
bourhood of Arundel. 
Mr. F. Smith exhibited specimens of Platypeza subfasciata? (a 
Dipterous insect varying greatly in the two sexes,) reared from fungi 
from Birch wood; also Pissodes Pini from Weybridge. 
Mr. Evans exhibited specimens illustrating the natural history of 
Mamestra Brassice and Euthalia impluviata ; also a specimen of Mar- 
garitia diversalis, taken by himself either in Yorkshire or at Darenth 
wood in June last. 
The following papers were read :— 
Notice of a Gynandromorphous specimen of Smerinthus Populi. 
By George A. Thrupp, Esq. 
Description of an ancient Irish Amulet made in the form of and 
used as a charm against the Murrian Caterpillar. Communicated 
by W. F. Evans, Esq. 
Descriptions of some new species of Exotic Spiders, and two species 
of Peciloptera. By A. White, Esq., by whom some additional ob- 
servations were made on the study of arachnology, and upon the struc- 
ture of the nests of two British species of spiders. He likewise read 
an extract from Abbott’s MSS. in the British Museum, on the habits 
of one of the fossorial Hymenoptera which collects spiders for the 
provisioning of its nest. 
MISCELLANEOUS. 
Observations on the group Schizopetalez of the family of Crucifere. 
By J. Marius Barneoup*. 
In 1822 Mr. Francis Place, on his return from a voyage to Chili, intro- 
duced into England a charming plant having four elegantly pinnate 
petals, and furnished with an embryo with four yellowish cotyledons 
rolled in a spiral. These extraordinary characters did not prevent 
Sir William Hooker from placing this plant in the family of the 
Crucifere ; he formed of it the genus Schizopetalon, of which he pub- 
lished an excellent description and a very detailed figure in the ‘ Exotic 
Flora,’ vol. i. p. 74, by the name of Schizopetalon Walcheri. A new 
coloured figure, but without analysis, appeared somewhat later in the 
‘ Botanical Magazine,’ tab. 2379. 
Mr. Robert Brown, on his part, had adopted in the ‘ Botanical 
Register,’ no. 752, precisely the determination and classification 
of Sir W. Hooker. Nevertheless these two botanists, struck with 
the remarkable forms which the embryo of this genus presented, had 
not neglected to state, that it ought to serve as type of a new tribe 
of Crucifere ; they differed solely on one point: Mr. R. Brown con- 
* From the Annales des Sciences Naturelles for March 1845. 
