]2fi 



THE AVILD OARDEN. 



chrysantha of Westevn America is the most hardy and enduring of 

 the American kinds. The species are of a truly northern and alpine 

 family, most alnmdant in Siberia. 



Wall Cress, Arabis. — Dwarf alpine plants, spreading in hal)it, 

 and generally producing myriads of white flowers, exceedingly suitable 

 for the decoration of sandy or rocky ground, where the vegetation is 

 very dwarf. With tliem may be associated Cardamine trifolia and 



Thlaspi latifolium, 

 which resemble the 

 Arabises in habit and 

 flowers. All these are 

 particularly suited for 

 association with the 

 purple Aubrietias, or 

 yellow Alyssums, and 

 in bare and rocky or 

 gravelly places, old walls, 

 sunk fences, etc. 



Sandwort, Are- 

 naria. — A most import- 

 ant family of plants 

 for the wild garden, 

 though perhaps less so 

 for lowland gardens 

 where more vigorous 

 types flourish. There 

 are, however, certain 

 species that are vigorous 

 and indispensable, such 

 as A. montana and 

 A. graminifolia. The 

 smaller alpine species 

 are charming for rockj- 

 places, and the little creeping A. balearica has (pite a peculiar 

 value, inasmuch as moist rocks or stones suttice for its support. 

 It covers such surfaces with a close carpet of green, dotted with 

 numerous star-like flowers. Some of the smaller species, such as 

 Arenaria c;espitosa (Sagina glabra var.), better known as Spergula 

 pilifera, miglit be grown in the gravel, and even used to convert 

 bare and sandy places into carpets of Mossy turf. In certain 



Siberian Columbine in rocky place. 



