254 



may stand so close at the tips of the branches that the 

 plant becomes almost globular. 



The anatomy of the leaf is of the ordinary centric type. 

 There are two sorts of hairs: some are long stiff multi- 

 cellular hairs, but more abundant are the short, stiff uni- 

 cellular ones. No hypodermal layer of crystal- cells is present, 

 but these cells are numerous in the green tissue and in the 

 aqueous tissue. The epidermis is one -layered, with stomata 

 slightly sunk. 



Fig. 77. Halimocnemis pilosa. July. 



Halimocnemis. 



This genus is characterised by the ripening fruit, the 

 perianth of which developes no wings or other protuberances, 

 whereas the leaves harden and coalesce thus forming a 

 protective cupule in which the fruit is placed. The species 

 are true summer-plants growing on clayey and saline soil. 



The habit of H. pilosa is illustrated (fig. 77), and related 

 to this we have H. macranthera and H. villosa. These species 



