348 



Annals of the South African Museum. 



ca. 9 intra lobum lateralem utrumque, et granulis 4-5 intra angulum 

 apicalem utrumque, tumore centrali nullo. A latere visae globoso- 

 ellipticae, apice rotundato, tumore parvo prop.' basin utrobique. A 

 vertice visae ellipticae, polis ca. 5-6 dentibus exiguis munitis, 

 inflatione mediana aliquantula acuta. Long, cell., 36 /< ; lat. cell, 

 med., 27-30 /x; lat. lob. pol., 21 // •. lat. isthm., 8 [i; crass.. 17-18 p. 



Samples 7 (very common), 8, 14, 51. 



This species appears to be not uncommon in the Cape Peninsula. It 

 is distinguished by the character of the apex from all the other 



Fig 24.— Euastrum capense, n. sp. a, b, c. Cells and semi-cells in front 

 view, showing varying shape of apex, the granulation, and the small 

 teeth, d. End-view. e. Semi-cell in side-view. All figures x SOU. 



Euastra of small dimensions, and the end-view is also rather charac- 

 teristic. It belongs to the species without elaborate ornamentation, 

 and may best be compared with E. hi note (Turp.), Ehrenb. (especially 

 forma gutwinsJcti, Schmidle), K elegans (Breb.), Kuetz., and E. 

 dubium, Naegeli, with the last of which it perhaps shares most points 

 of resemblance. 



As the figures show, the shape of the apex is somewhat variable 

 (Fig. 24, a-c), and the amount of granulation also varies to some 

 extent in different individuals. 



2 Euastrum denticulatum (Kirehn.). Gay; W. & G. S. West, 

 op. cit, ii, 1905, p. 56, PL XXXIX, tigs. 1-4. (Syn.: E. amoenum, 



Gay.) 



Samples 12. 24 (very rare). 



