santut.] THE MECHANISMS OF FLOWERS. 303 
1, 2); on other plants, the petals were rough on the upper 
‘surface, marked with a red elliptic line, and with another red 
line traversing the long axis of the ellipse, and were produced at 
the end into a slightly recurved point. 
Visitors: A. Hymenoptera—Apide: (1) Bombus muscorum, F. § (Thur., 
July 8, 1872),s, B. Diptera—Bombylide: (2) Systechus sulfureus, Mik., 
s. (Thur., July 14, 1868). Additional visitors (four beetles, six flies, two Lepid- 
optera) are enumerated in No. 590, 11. 
- Fic, 107.—Asperula taurina, L. 
-—Herma peatise flower, from the side. 
.—Pistil o P the same flower, with nectary. 
x ae hrodite flower, with the lobe of the corolla revolute, the stigmas more exserted, and 
r papille: obvious. 
ah age flower, whose stigmas overtop the black shrivelled anthers on which a few pollen-grains 
 -E.—Half-withered flower, in which the styles project still further. 
_ F —Abortive pistil of a male flower. 
_ G.—Male flower, with three teeth, from the side. (x 7.) 
a _ (Churwalden, May 31, 1879.) 
a Asperula taurina, L.—This plant is adapted for nocturnal 
Lepidoptera by its white colour, and by its long, narrow tube, 
