Cross. — Observatio?is on some New Zealand Halophytes. 559 



tne more exposed parts of the meadows some of the leaves show a yellow 

 autumn colouration, but it is not of such frequent occurrence nor so briUiant 

 as in Sellirra. Some of the leaves, however, take on a very pecuUar pink 

 colour, as if they had been cut and their cut ends placed in red ink. Flowers 

 were gathered at Tu. as early as July. 



Kirk divides C. dioica into three species ; while Cheeseman gives five 

 varieties of the one species, according to the shape of the leaves. It^iwould 



Fig. 8. — Cottjla dioica. 



a. Creeping stem in driest part of salt meadow, half natural size. h. Creeping stem 

 in damper part of salt meadow, half natural size, c, d. Forms from the marsh, 

 half natural size, c, /. Leaves from salt marsh, natural size, g, h. Leaves from 

 salt meadow, natural size. 



be difficult to say to which of these varieties thoie collected at the above 

 stations l-elong. 



16. Cotula coronopifolia. 



Station. — (1.) H.C. : (a.) In the salt meadow, where it has stout branches 

 and short leaves. (6.) Partly or wholly submerged in the w^ater of 

 the channels. (2.) N.Br. : {a.) Salt meadows. (6.) Wholly submerged in 

 the brackish water of the pools in the meadows. (3.) Tu. : (a) Round the 

 edges of the lagoon, (b.) A few^ individuals actually in the water, but not 

 wholly submerged ; this, perhaps, may be accounted for by the fact that 

 the water is exceedingly salt. 



