SAXIFRAGACE^. 103 



branous margin and a row of calcareous pits; Pyrenees. 

 S. atropurpuj^ea^ Sternb. ; stem caespitose, many-flowered, 

 leaves of barren shoots on long stalks, 3-5 -cleft, petals 

 obovate-elliptical, dark purple ; very high, local. 



B. Flowers yellow: — 6^. mutata^ L. (PI. 35); radical 

 leaves in a dense rosette, fleshy, ligulate, with a marginal 

 row of calcareous pits, stem 2-4 in., branched, petals 

 linear, orange-yellow ; Southern Switzerland, Jura, Pyre- 

 nees. S. aretioideSf Lap. ; petals oblong, denticulate, 

 leaves linear, v/ith a few pits ; Pyrenees. vS. ambiguay 

 DC. (PI. 36); Pyrenees; a very remarkable plant, is 

 possibly a hybrid between 6^. media and aretioides. S. 

 HiradtiSy L. ; petals golden yellow, dotted with red and 

 tubercled at the base, sepals free, reflexed, ciliate, leaves 

 linear, not pitted ; Jura, rare. 5. muscoides, Wulf. ; 

 stem densely caespitose, flowers citron or pink, leaves 

 linear, narrowed into the leaf-stalk ; high ; Northern 

 Switzerland, Jura, Pyrenees. S. moschata, Wulf.; re- 

 sembling the last, but plant covered with viscid hairs. 

 6". Allioniiy Gaud. ; similar, but petals greenish-yellow or 

 white, obovate ; rare. S. croceay Gaud. ; similar, but 

 petals saffron-yellow. vS. Facchiniij Koch ; stem 1-3- 

 flowered, petals as broad as and longer than the calyx- 

 teeth ; rare. vS. sedoideSy L. ; plant loosely caespitose, 

 fertile stem leafless, petals lanceolate, acute, shorter and 

 narrower than the calyx-teeth ; Alps, Pyrenees. 6". 

 Hohenwartiiy Sternb. ; fertile stem leafy, petals as broad 

 as calyx-teeth, lemon-yellow with dark purple apex; 

 Tirol, Carinthia, Styria, Carniola. 5. stenopetala, Gaud. ; 

 stem I -flowered, petals lemon-yellow, linear, lower leaves 

 pinnatifid ; Eastern Switzerland. 6^. aizoides, L. (PI. 37) ; 

 calyx half-inferior, leaves linear, ciliate ; moist ; very 



