102 THE FLORA OF THE ALPS 



I. Saxifraga, L. 



Flowers in cymes, rarely solitary; calyx-tube free or 

 partially adnate to the ovary ; ovary 2-lobed, 2-celled ; 

 styles 2; capsule 2-valved, 2-beaked. 



Only a very few species of Saxifrage grow in the low- 

 lands, viz. : — 5. tridactyliteSy L. ; a small annual plant 

 2-4 in. high, with small white flowers in many-flowered 

 cymes, and cuneate 3-5-fid leaves ; walls and dry places. 

 S. granulata, L. ; stem 6-18 in., with bulbs in the axils 

 of the lower leaves, flowers J in. diam., white, drooping, 

 leaves palmately lobed; meadows. 5. bulbifera, L. ; all 

 the stem-leaves bulbiferous; Western Switzerland. All 

 the remaining species are alpine. 



A. Flowers pink or violet : — 6'. oppositifolia, L. (PI. 34) ; 

 flowers sessile, solitary, J in., violet, stem prostrate, 

 leaves small, ciliate, very crowded, opposite, with a pore 

 at the tip ; one of the most beautiful alpine plants ; wet 

 rocks, not uncommon ; Alps, Jura, Pyrenees. wS. biflora, 

 All. ; flowers 2 or more, petals lanceolate, leaves op- 

 posite, not so crowded, ciliate; very high; Alps, Dau- 

 phiny. 5. retusa, Gou. ; flowers small, stalked, light purple, 

 calyx-teeth not ciliate, stem-leaves opposite, with 3-5 

 pits at the tip ; very rare ; Monte Rosa, Simplon, Styria, 

 Pyrenees. 5. Rudolphiana, Hornsch. ; flowers solitary, 

 terminal, pink, calyx-teeth and leaves glandular-ciliate, 

 plant csespitose ; high ; Switzerland, Carniola, local. S, 

 macropetala^ Kern. [Kochii, Horn.) ; flowers large, 2 or 

 more, lilac, petals lanceolate ; Switzerland, Tirol, Car- 

 niola, local. vS. media, Gou. ; flowers 3-7 in a simple 

 cyme, petals pink, shorter than the very dark purple 

 calyx, leaves oblong-spathulate, glaucous, with mem- 



