African and Madagascar Flowering Plants . 355 
Hymenoptera : Apis mellifica sucking between the stamens. 
Diptera : a small sp. and Syrphus capensis. Coleoptera : 
Peritrichia capicola , P 'achy enema crassipes , and others. 
M. aristulatum, Sond. 
Similar to preceding species. Visitors: — Diptera: Lucilia 
argyrocephala , L ophonotis sp. Coleoptera: Anisonyx ursus , 
- 4 . longipes . 
Hydroeotyle Solandra, L. f 
This flower is very markedly protandrous. There is no 
vestige of the styles while the anthers are dehiscing, and when 
the former are ripe the anthers have usually fallen off. Nec- 
tary dark purple and very large. Visitors : — Lucilia argyro- 
cephala , and other Diptera. 
Pleetronia ventosa, L. 
The style projects well above the stamens ; the corolla 
has a ring of short woolly hairs just above a basal constricted 
portion which forms a cavity to hold the honey secreted by 
the top of the ovary. Visitors : — Apis mellifica , very ab., also 
a Bombylid.— Durban. 
Kraussia floribunda, Harv . 
The corolla has a narrow tube with spreading reflex 
lobes. The style ends in a thickened clavate extremity which 
is marked by longitudinal furrows ; whilst in the bud the 
anthers closely surround this thickened portion and shed their 
pollen on the grooves, so that when the flower opens the end 
of the style is thickly covered with pollen. Subsequently 
the stigmatic lamellae unclose. The arrangement is there- 
fore the same as in Campanulaceae. Visitors : — Lepidoptera : 
four species (373, 378, 380, 381), very ab., and also Planema 
protea . Hymenoptera: Apis mellifica. Coleoptera: two species. 
Pavetta obovata, E. Mey, and Canthium ob ova turn, Klot 
have practically an identical arrangement. 
Pentanisia variabilis, Harv . 
The flowers are arranged in capitula and those towards 
the exterior open first. They are also distinctly dimorphic ! 
In the first form the style is exserted and the stigma stands 
