C. H. Ostenfeld: Contributions to West Australian Botany. I. 25 



does not give any confirmation to the view of the existence of 

 two different species: 



Leaves of the branches of the upright shoot. 



Yallingup, W. A 



Port Philip Head, Vict 

 Henley Beach, S. A. . . 



Victor Harbour, S. A. 



Leaves Of the yOimg upright Shoot itself (* of young plants, "seedlings".) 



Carnarvon, W. A 3.0-4.5 3.0 -5.5 



Port Pirie, S. A 3.0—3.3 3.0-3.5 



♦Yallingup, W. A 3.0-4.5 5.0-7.0 



♦Carnarvon, W. A 4.5-6.0 6.0-7.0 



♦Bunburry, W. A 2.8—4.5 4.5-7.0 



♦Henley Beach, S. A 3.0—4.5 3.5-4.0 



Passing now to the flowers of C. antarctica. Both the male 

 and female flowers are terminal at the apex of the short branches 

 of the upright shoots. The male flower was found and figured 

 by Gaudichaud who says (1826, 35): "J'ai trouvé quatre étamines 

 biloculaires connées et supportées par un petit pédicule (voyez 

 pi. 40, fig 2)". In reality the flower is like the male flower of 

 the other species of Cymodocea, i. e. it consists of two short-stalked 

 4-locular stamens connected on the dorsal side, and Gaudichaud's 

 figure is also better explained in this manner than by regarding 

 the flower as consisting of four stamens. I. M. Black (1913, 

 Figs. 10 — 12) has given good drawings of them. The apices of the 

 anthers are adorned by branched appendages. Gaudichaud has 

 drawn the appendages as unbranched, and if Mr. Black's claim 

 for the existence of two separate species is right, it would be 

 worth while to look here for a distinctive feature. 



A transverse section of the double stamen does not differ in 

 any point worth mentioning from the section of the male flower 

 of C. isoétifolia (see Fig. 13). I have not had specimens preserved 

 in fluid for examination, but have soaked herbarium specimens 

 sent by Mr. Black and then hardened them in spirit. The length 



