238 MR. H. BOLUS ON SOME CAPE ORCHIDS. 
Fig. 4. 
Structural parts of the flower of Satyrium pumilum, Thunb. 
(A to D enlarged twiceand E thrice natural size.) 
anteriores, and of the sepals, which he calls ‘ laciniæ laterales exte- 
riores. The former are present, and are the sepals; but the 
latter have no existence. I presume, however, there has been 
some mistake in the description given by Thunberg; for in all 
other respects it agrees well with the present species.” 
Thunberg’s description of the sepals and lateral petals is as 
follows :—“ Lacinim laterales exteriores lanceolate, acuminate ; 
due interiores anteriores subfalcat et una intermedia (labellum) 
oblonga, inter se cohzrentes, labium inferius obovatum planius- 
culum simul mentientes.” 
Any one reading the above with the description of the whole 
plant will, I think, be satisfied that the plant figured above is 
the same as Thunberg’s. It differs in the most striking manner 
from any other Satyrium with which I am acquainted ; yet it is à 
difference caused simply by the partial cohesion of organs usually 
more deeply parted, and by the rudimentary state of the lateral 
petals. Mr. Bentham, even on the supposition that these petals 
were absent, considers it unnecessary to separate this plant from 
Satyrium; and his judgment will therefore be strengthened by the 
confirmation of Thunberg’s description. 
It may be added that in the young flower the lateral petals are 
frequently so soldered down to the sepals as to be difficult of 
detection. The specimens examined were kindly communicated 
to me by Mr. Tyson, who gathered them near the Hex river; 
about October last. 
