African and Madagascar Flowering Plants. 359 
Hildebrand ; it seems not to be so in G. r ingens). The most 
marked peculiarity however is the delicate elastic portion of 
the style below the thickened extremity. One may on a 
sunny morning almost see the pollen being pushed up through 
the anther-sheath by the style, and when the latter has 
finished extending, it stands fully three lines above the 
anthers. However, after the pollen has been removed, it 
sinks till the open stigmatic lips are just above the anther- 
sheath. This sinking, moreover, seems to be due to a con- 
traction of the style (not to withering), as in the younger 
styles the cells are longer than they are in the older state. 
Visitors : — Hymenoptera : Halictus vittatus . Diptera : Systo - 
cheilus mixtas , Dischistus heteroceras. Coleoptera : Peritrichia 
capicola. 
Cullumia setosa, R . Br. 
The pollen is echinulate. The style terminates in a 
thickened portion as in Arctotis. Visitors : — Coleoptera : Pa - 
chy enema crassipes , Dicranocnemis sallicollis , Dichilus dentipes. 
Berkheya carlinoides, Wild. 
In the shape of the style-extremities and the matter of 
retraction, this is exactly similar to Gazaniapinnata. Visitors : 
— Coleoptera : Peritrichia capicola , and others. 
Wahlenbergia procumbens, A. DC. 
In this species pollen is shed on the hairy outer surface 
of the stigma just as in Campanula. Visitors : — Lepidoptera, 
ab. — Also ants stealing honey. 
Wahlenbergia capensis, A. DC. 
This species differs from the preceding in the peculiarly- 
shaped thickened extremity of the style. This is hemispherical 
with the broad surface uppermost, and it is upon it that insects 
usually alight. The bases of the filaments are flattened and 
triangular in shape, and their edges being turned up and hairy 
probably prevent the entrance of small insects. 
Microeodon glomeratum, A. DC. 
The anthers shed their pollen upon rather long hairs 
which cover the style. The bases of the filaments are tri- 
