HENRIK PRINTZ J92Ø 
Nr nike same place NN Oct. 25th, 1912 
62 nn thesame pace PA 
» 24—27. Above Bluff, at the Signal Station, at the 
entrance of the harbour of Durban, .... » 928th, » 
» 28—37. On trees and pieces of wood near the 
«ocean, south of the Whaling Station, 
But LISE sr Nov. 3rd, » 
» 38—53. On trees along Bluff Railway Line, 
towards Eastern Co., near the ocean,.... » 8th, » 
» 54—59. On trees in the garden of Umgeni Hotel, 
Umgeni River, north of Durban, ..:... » On» 
>602S7 One: sa Umblokner SE » 2 
» 88—184. From various localities above Bluff (in 
dense wood), along he cross-road to the 
South African Whaling Co.s station... » 13th, » 
» 185—320. From the forest above Bluff, between 
the South African Whaling Co.'s station 
and Ksipmso Kaales- AR >» hp» 
» 321—3583. From trees, shrubs, etc., at Ostenwald, 
SaldahaBan LS March i0th, 1913 
»304—379. From the «bush», on the peninsula 
between Donkergat and Jutten Island, 
Saldanha Bay, Cape Colony, ...-..-... » iith, 1913 
» 374—408. From the water-place, Saldanha Bay, .. » 19th, » 
It appears from this that the samples were colleeted within 
rather small and limited territories and in the course of a short 
period, and it was to be expected beforehand that the material 
would be somewhat homogeneous. At the same time the number 
of the samples was so large, however, that the account I intend 
to give in the subsequent pages of this paper, is supposed to be a 
fairly complete survey of the composition of the subaérial algal 
fiora of the said places. 
When compared on the basis of the material at hand, it will 
immediately be seen that the neighbourhood of Durban is much 
richer in subaérial algae than Saldanha Bay. All of ihe species given 
thus occur at Durban, while only few of them have been observed 
at Saldanha Bay. This, of course, is a consequence of the climatic 
conditions, being damp and tropical at Durban, while Saldanha 
Bay has a dry, desert climate. In my samples there are only 
two species that can be designated as really common at Saldanha 
Bay, viz. Ghlorococcum vitiosum nov. spec. and Pleurastrum 
lobatum (CuHopatT) Printz. Besides, there occur more sparse.y 
Phycopeltis flabelligera and Ph. arundinacea, while all the rest 
observed here, are very rare. 
Thus, the flora of subaérial algae at Saldanha Bay is poorer both 
in quantity and quality. The fact that the same species are to be 
