Structure of Flowers of Adoxa moschatellina. 259 
the alpine form of Bulimus lubricus and the Clausilia above-men- 
tioned. 
Helix hispida, /3, (an Helix concinna, Ferr ?) 
rotundata, Mull, (radiata, Mont.) 
IV. The following species were plentiful in the first pine forests : 
Helix villosa, Drap. 
pomatia, Lin. 
personata, Drap. 
obvoluta, Mull. 
Clausilia bidens, Dr. 
rugosa, Dr. 
perversa, Pfeiff. 
~ solida, Drap. 
Bulimus montanus, Drap. 
(cionella) lubrica, Mull. 
In the lowlands of Berne the Testacea are those of the north of 
Europe and Germany, but in the Vallais the conchology assumes a 
more southern character. The trunks of the chestnut trees about 
Sion are often covered with the Helix sylvatica, Drap. and under 
stones we find Bulimus radiatus, Pupa quadridentata, and Pomatias 
maculata. 
VI. On the Structure of the Flowers of Adoxa moschatellina. By 
the Rev. J. S. HENSLOW, M. A. Professor of Botany in the Uni- 
versity of Cambridge. 
THE flower of Adoxa moschatellina, as is well known, are ar- 
ranged in ahead, and are so placed that one is terminal, and four others 
lateral. They are composed of four whorls; but the number of the 
parts in each is usually different in the terminal and in the lateral 
flowers. In speaking of the subordinate parts of the two outer whorls 
we shall consider them as sepals and petals, which cohere to form a 
gamosepalous calyx and gamopetalous corolla. In this sense then, 
the terminal flower more usually Fig. 1. 
contains 2 sepals, 4 petals, 8 sta- 
mens, and a 4-celled ovarium, 
which may be considered as com- 
pounded of 4 carpels, while the 
lateral flowers contain 3 sepals, 5 
petals, 10 stamens, and 5 carpels 
(Fig. 1.) Such is the ordinary 
view taken of the structure of these flowers. They are, however, very 
subject to vary in the number of their parts, and we propose to exa- 
mine each whorl in detail. 
