146 SUB-ALPINE PLANTS 



Rather moist, stony places on the primary rocks ; 3300-8000 

 feet. July, August. 



Distribution. Eastern, Central, and Western Alps ; Pyrenees, 

 Spain. 



Saxifraga mutata L. 



Stem erect, springing from a rosette of large leaves. Stem ends 

 in a racemose cyme, covered with viscous hairs, like the bracts, 

 flower - stalks, and calyx ; ultimate branches i-many flowered. 

 Rosette-leaves thick, stiff, glabrous, tongue-shaped, or obovate- 

 lanceolate, flat, obtuse, with a cartilaginous white margin, densely 

 fringed below, inconspicuously serrate towards apex or entire, with 

 distant, inconspicuous dots which are encrusted with lime when 

 young. Stem-leaves smaller and passing into bracts. Petals linear- 

 lanceolate, acute, orange-yellow. Sepals oval, obtuse, much broader 

 than the petals. 



Damp, rocky places and among debris in limestone mountains, 

 descending into the valleys. June to August. 



Distribution. Carpathians, Eastern, Central, and Western Alps. 

 Not found in the Jura or high Swiss Alps, but occasionally in the 

 plains. 



Saxifraga Aizoon Jacq. (Plate XIV.) 



Root putting out naked runners bearing half-closed rosettes of 

 leaves. Stem erect, 3-10 inches high, bearing a loose racemose 

 cyme, glandular-hairy like the bracts, flower-stalks, and calyx, or 

 calyx and lower part of stems glabrous. Branches 1-3 flowered. 

 Rosette-leaves thick, stiff, glabrous, with cartilaginous teeth, and 

 depressed dots near the margin ; teeth sharp, covered like the dots 

 with a white, at length deciduous, calcareous incrustation. Stem- 

 leaves much smaller and more wedge-shaped, passing into the 

 bracts. Petals obovate, obtuse, snow-white or sometimes cream- 

 coloured, and often dotted with red. Very variable in size, colour, 

 and habit, but nurserymen are too apt to give names to so-called 

 varieties which are not always constant in their characters. 



Common in rocky places in calcareous mountains up to 8500 feet. 

 June to August. 



Distribution. Carpathians, Silesia, Bohemia, Eastern, Central, 

 and Western Alps ; Jura, Vosges, Black Forest, Corbieres, Pyrenees, 

 Caucasus, Siberia ; North America. 



Saxifraga Cotyledon L. 



Stem 10-16 inches high, forming a many-flowered, loose, some- 

 what pyramidal panicle, branched from the base, glandular-hairy ; 

 the middle branches 5-15 flowered. Leaves of radical rosettes 

 tongue-shaped, entire, pointed or mucronate, dotted near the 

 serrated margin with an incrustation of lime, serratures carti- 



