“ The Karroo ” in August. 115 
yellow appeared to be the dominant colour, then white, then red, 
while only a very few blue flowers were observed. 
One or two observations were made on insect and other visitors 
to flowers. A tall Scnecio was systematically visited by a dipterous 
insect belonging to the Bombylideae, and also by a very hairy 
beetle of the genus Hoplia (Cetonidae). The spineless Euphorbia 
shown on the left of Fig. 1. PI. VII., was visited by numerous small 
beetles also belonging to the Cetonidae. 
Just before the photograph forming the last mentioned figure 
was taken, one of us noticed a sun-bird, with bright metallic green 
plumage (probably the Malachite sun-bird, Nectarinia famosa ) 
sucking honey from the flowers of the Aloe shown in the middle of 
the photograph. 1 
Our best thanks are due to Dr. H. Bolus, Lieutenant-Colonel 
Prain (Director of the Royal Gardens, Kew), Mr. N. E. Brown, and 
Dr. O, V. Darbishire, for their kind assistance in identifying some 
of the plants mentioned in this paper. We also desire to express 
our indebtedness to Miss Emily Dust for executing the drawings 
which constitute Text-figures 15—19 and 22. 
1 Cf. G. F. Scott-Elliot. Ornithophilous Flowers in South Africa. 
Annals of Botany, 1890, Vol. IV. pp. 265 et seq. 
EXPLANATION OF PLATES V., VI. and VII. 
Plate V. 
Fig, 1. General view of Karroo vegetation near Matjesfontcin, looking nearly 
east. In the foreground is a sward-like patch composed of annuals ; 
behind this are bushes of Zygophyllum sp.—further in the distance 
are seen Elytropappus, etc. 
Fig. 2. The dominant shrubs here are a species of Mesembrianthemum with 
fleshy stems and reduced leaves. 
Fig. 3. Facing the Witteberg range. Galenia africana dominant. 
Plate VI. 
Fig. 1. On high ground near foot of the Witteberg. In the centre is a stream 
bed—whose course is faintly indicated by the somewhat greater size of 
the shrubs. In the foreground are several specimens of Cotyledon 
fascicularis. 
Fig. 2. Watercourse on plain, note the larger trees (Rhus viminalis and Acacia 
liorrida) fringing its banks. 
Fig. 3. Acacia liorrida. 
Plate VII. 
Fig. 1. Summit of small kopje lying south of Matjesfontcin. Aloe sp. in 
centre; to right of this, and again on left of photograph, are seen the 
small cylindrical stems of some small specimens of a common Euphorbia. 
Fig. 2. Cotyledon Eckloniana , on summit of a low kopje. 
Fig. 3. A common type of woody shrub found on the Karroo. 
Fig. 4. A white flowered species of Moraea. 
