199 - 



ones, beyond the year- shoot branches of last year, and from 

 buds which may be seen the preceding year. 



The flowers and fruits are very similar to those of the 

 last species. 



The anatomy of the leaf is also similar to that of Salsola 

 Arbuscula, but the crystal-layer below the epidermis is absent. 



Salsola hispidula Bge., 



which I have not seen, is according to descriptions very much 

 like S. subaphylla. 



Salsola rigida Pall. 



A stumpy shrub attaining the height of 30 to 50 centi- 

 metres, and almost an undershrub. It is one of the charac- 

 teristic plants of the clay-desert (p. 69). The leaves are 

 cylindric, and although the lower ones disappear in July, 

 foliage leaves are present through the whole summer. The 

 whole plant is hairy and grey. 



The year-shoots, which may be 30 centimetres long, 

 bear flowers in all the axils at their extremities and here 

 in this region there are generally a few curved, ascending 

 branches (fig. 40). In the axils lower down, vegetative short- 

 shoots are frequently present, which probably next year 

 develope into rejuvenescence shoots. The distal parts of the 

 year-shoot and the flowering branches die away before the 

 next vegetative period. 



The flowers are hidden between three bracteoles and 

 open in June or July; the fruits are of the ordinary Salsola 

 type and ripen in the autumn. 



The anatomy of the leaf is the usual type. Central 

 aqueous tissue, palisade cells with starch-sheath towards 

 which veins pass from the midrib; the hypodermal crystal- 

 layer consists of scattered thin-walled cells. 



Salsola laricina Pall., 



which I have not seen alive, resembles the preceding species 

 as regards ramification. 



