C. H. Ostenfeld: Contributions to West Australian Botany. II. 6o 



Moq. in D. G. Prodr. XIII 2 (1849) 149; Salicomia quinqueflora 

 Bge. in Ung. Sternberg 1. c. (1866) 59. 



A low bluish-green shrub. Flowers in fives, whereby this 

 species is easily recognisable. The specimens have lost their 

 fruits, the axes remaining. Here, then, the spikes are not tumb- 

 led about by the wind (comp. A. leiostachyum). From the defici- 

 ency of fruit and seed it is uncertain whether the species is a 

 Salicomia, or an Arthrocnemum. 



Carnarvon, in salt pans (No. 350, 31. Oct. 1914). 



27. S. sp. 



A slender, sterile specimen. 



Swan River at Perth (No. 340 B, 6. Sept. 1914, E. Dorph- 

 Petersen). 



XI. Suæda Forsk. 



28. S. australis (R. Br.) Moq., Ann. se. nat. 23, (1831) 318; 

 Chenopodium austräte R. Br. Prodr. (1810) 407; Chenopodina 

 australis Moq. in D. C. Prodr. XIII 2 (1849) 163; Suæda mari- 

 tima Benth. Fl. Austr. V (1870) 206. 



The specimens have been named Suæda maritima by Mr. 

 J. H. Maiden. They are shrubby below, sterile, having thrown 

 off their fruits, but the branches are shooting freely. Having 

 had no opportunity to examine flower and fruit, I have made 

 cross-sections of leaves. The anatomy of the leaf is, as a whole, 

 like that of S. maritima from our North-European coasts, but 

 there is one difference, namely that the epidermis is very papil- 

 lose on all sides of the leaves 1 ). Thus, both the shrubby habit 

 of the plant and the shooting after flowering show that it is 

 perennial, and the papillæ on the leaves give further proof for 

 the assumption that S. australis, if derived from S. maritima, is 

 no longer identical with it, but must be regarded as a distinct 

 species. 



Swan River at Perth (No. 341, 6. Sept. 1914, E. Dorph- 

 Petersen). Derby, dominant in mangrove (No. 1163, 7. Nov. 1914). 



29. S. sp. 



A fragment. 



Kalgoorlie (No. 232, 7. Oct. 1914). 



1 On the value of anatomy in identification of the species of Suæda, see 

 the present writer's book : Studies in the Vegetation of the Transcaspian 

 Lowlands. Copenhagen 1912. 



Dansk Botanisk Arkiv, Bd. 2. Nr. 8. 6 



