356 Scott Elliot . — On the Fertilisation of South 
about two lines above the corolla, while the anthers are per- 
fectly sessile and included within a small dilatation of the 
corolla-tube just inside the throat : in the second form the 
filaments of the stamens are not quite i lines long, and during 
dehiscence their anthers are almost horizontal with their 
inner pollen-covered face directed upwards, while the style is 
slightly shorter than the corolla-tube, so that the stigma is 
included. The narrowness and length of the tube (6-7 lines) 
shows an adaptation to Lepidoptera, and near Pretoria I have 
seen various species sucking the flowers. Honey is secreted 
by a small ring round the base of the style. 
Diplopappus fruticulosus, Less. 
In the florets of the disc the ends of the style-branches are 
covered with short rough hairs which brush out the pollen : 
the branches remain in contact at their extremities but curve 
apart so as to form an arch. The stigmatic papillae are on 
the sides of the outer edges of the branches. It is hence very 
similar to Agathaea coelestis i Cass., described by Hildebrandt 
(Muller, No. 357), and not very unlike Chrysoeoma (Muller, 
‘ Fert. of Plants,’ p. 323). The rayflorets have no hairs. 
Visitors : — A peculiar little fly with a very elongate head, very 
ab., also other Diptera. 
Aster tenellus, L. 
Similar to Agathaea coelestis and Chrysoeoma Linosyris 
(see Muller, 1 . c.) Visitors: — Small Hymenoptera: Halictus 
vittatus , Sm. very ab. Diptera : Systocheilus mixtus , Dischistus 
heteroceras , Macg. Coleoptera : Peritrichia capicola . 
Relhania genistaefolia, E Her. and R. ericoid.es, Cass. The 
branches of the style (in the disc-florets) end in hairy flat tops 
which push up the pollen in the usual way. 
Osmitopsis asteriscoides, Cass. 
I found that in this species there was a differentiation in 
the disc-florets. The outer circle of disc-florets being alone 
fertile and having larger nectaries and less pollen than the 
others. Their styles were open moreover, long before those 
of the inner florets were ready. — Cape Town. 
