SAXIFRAGES (ROCKFOILS). i8i 



position where it will not receive drip in winter. Loam 

 and limestone grit should be applied in autumn. 



Caesia is a silvery species from the Swiss Alps, 

 bearing creamy flowers in May. It belongs to the same 

 section as the preceding, and its grey tufts are among 

 the dwarfest of all, being quite moss-like in their 

 density. A larger-flowered variety of it called major 

 is offered. They like a sunny place with loam and 

 hmestone grit. 



Camposi, see Wallacei. 



Cordifolia is a Siberian species, wholly different from 

 the mossy and encrusted species already mentioned, 

 in that it has large, roundish, leathery, shining leaves 

 on tall, strong stalks. The flowers are purplish rose. 

 There is a variety called splendens with crimson flowers, 

 and others named purpurea and alha. They will grow 

 in ordinary soil. 



Cotyledon is a valuable species from the European 

 Alps. The leafage is produced in large, loose, 

 silvery rosettes, and the flowers in pyramidal 

 spikes. It belongs to the encrusted section, but has 

 a habit and a beauty of its own. The variety nepalensis 

 is good, and pyramidalis still better. The latter is 

 very robust, and bears splendid pyramidal spikes 

 of white, red-dotted flowers. They all thrive in 

 ordinary soil and are easily propagated by division 

 (see coloured plate). 



Crassi folia belongs to the Bergenia (Megasea) section. 

 It is a Siberian species, with thick shining leaves and red 

 flowers in April. It may be associated with cordifolia. 



Geum is a member of the Robertsonia (London 



