35 ° Scott Elliot . — On the Fertilisation of South. 
Fort Dauphin. Visitors \—Apis mellifica and other Hyme- 
noptera. 
Erythrina eaffira, DC ., and E. indiea, L. 
See Annals of Botany, 1 . c. p. 267. 
Canavalia ensiformis, DC. (Figs. 70-71.) 
The large reddish purple flowers are very conspicuous. 
The vexillum is strongly reflex and the basal ends of the 
limbs are produced downwards into thickened pegs which 
occupy the space between the auricles and claws of the alae. 
There is a longitudinal bulging along each side of the carina, 
which is fitted above and below by the alae ; the auricles of 
the latter are also carried back below the vexillum and 
thickened in such a way that they fill up the entrance so that 
no honey can escape. On depression both style and stamens 
emerge, and in young flowers some of the pollen is thrown a 
considerable distance as the edges of the carina catch the 
stamens. Honey is abundantly secreted. Visitors : — Xylocopa 
violacea , also Lepidoptera. — Fort Dauphin. 
Phaseolus lunatus, L . 
The carina in this form is bent into a spiral forming one 
complete turn and a half. The flower is fertilized exactly as 
n e. g. P. Caracalla (see Delpino, Muller, No. 178). It differs 
from P. coccineus described by Farrer (MUller, No. 242) in the 
appendage to the odd stamen being perfectly symmetrical (cf. 
Darwin, Muller, No. 169). Visitors : — Apis mellifica and several 
Lepidoptera. 
Phaseolus adenanthus, Mey (Figs. 7 3 ~ 75 )* 
In this flower there is a very close similarity to Canavalia. 
The lower basal ends of the wings of the vexillum are similarly 
thickened, but there is also a pulley-like thickening at its 
point of curvature ; the auricles of the alae lie between these 
two thickened parts of the vexillum and rotate round the 
lower one on depression, but as each ala has also a small 
horizontal spur from its lower margin which passes below the 
carina, and as the calyx is strong and leathery, the effect of 
