SAXIFBAOA 



BOGKFOIL ORDER 



SAXIFHAGA 417 



S. scardica 



S. Tombeanensis 



S. valdensis 



14. Porphyreon ; Muscoideie. — Leaves 

 imbricated, small, opposite, very often 

 porous at the apex. Flowers solitary, 

 red, or purple. Petals oblong wedge- 

 shaped, or lanceolate. 



S. biflora S. oppositifolia 



S. macropetala S. retusa 



15. Bergenia. — Eootstock thick, leaves 

 large, with stalks dilated at the base. 

 Petals white, red, or purple. Includes 

 Megasea which is kept up as a distinct 

 genus by some authorities. 



iS. cordifolia 8. purpurascens 



S. crassifolia S. Stracheyi 



S. ligulata 



S. adscendens. — A European and N. 

 American annual 3 in. high. Leaves 

 fleshy, 3-lobed ; lower ones cordate with 

 cut lobes. Flowers in AprU, white, with 

 hairy stalks and calyx. S. petrcea and 

 S. tridactylites are very closely related. 



Culture and Propagation. — This 

 species is little more than a, botanical 

 curiosity. It will flourish in cool damp 

 parts of the rookery facing north or east, 

 and may be increased by seeds sown as 

 soon as ripe or in spring in the open air. 



S. aizoides. — A British and European 

 alpine with decumbent, tufted, much- 

 branched stems, 3-8 in. long. Leaves 

 linear oblong, crowded below, scattered 

 upwards, J-2 in. long ; lower onesreflexed, 

 often ciliated. Flowers in summer, i in. 

 across, orange or golden yellow, with red 

 dots. 



Culture dc. as for 8. flagellaris, p. 420. 



S. Aizoon (S. intacta). — Native of 

 Europe and N. America, 5-10 in. high. 

 Lower leaves clustered, silvery, persistent, 

 thick, spoon-shaped, with white, cartila- 

 ginous, toothed edges. Flowers in June, 

 creamy-white, often spotted at the base ; 

 petals obovate ; scape downy, clammy. 

 There are very many varieties of this 

 species, among the best being carinthiaca 

 (or gracilis), robusta, recta. 



Culture and Propagation. — A good 

 rock plant ; it likes plenty of sun, and 

 may be planted so as to face outwards 

 more or less vertically from the face of 

 the rocks, which may be either limestone 

 or granite. The soil however should be 

 deep and rich, so that the roots may pene- 

 trate after the moisture between the 

 fissures. Increased by seeds and division. 



S. ajugxfolia. — A pretty little tufted 

 species from the Pyrenees. It has small 

 and rather thick fleshy bright green leaves, 

 and 1-3 white flowers with yeUow anthers 

 on a stalk, produced in July. 



Culture dtc. as above. This species 

 luxuriates in a moist but well-drained 

 situation, and is an excellent plant for 

 carpeting the rockery in positions facing 

 north or east, or for making edgings to 

 beds or shrubberies in the shade. 



S. Andrevysi. — A hybrid between 8. 

 Geum and 8. Aizoon, about 6-12 in. high . 

 Leaves long, spoon-shaped, obtuse, 

 smooth, rather thick, narrowed at the 

 base into a slightly fringed stalk, and 

 having a membranous margin. Flowers 

 in early summer, white, dotted with 

 purple. 8. guthrieana is very similar 

 to this. 



Culture dc. as above for 8. Aizoon. 



S. androsacea. — A mossy species 

 found on damp rocks on the higher Alps. 

 The small deep green shining leaves are 

 spoon-shaped or obovate wedge-shaped, 

 with an entire or 3-5-toothed apex. 

 Flowers 1-3 on a stem, pure white, pro- 

 duced in June and July. 



Culture d-c. as above for 8. ajugcs- 

 folia. 



S. aphylla. — A mossy Alpine species 

 with rosettes of entire or 3-5-toothcd 

 fleshy, bright green leaves. The bright 

 golden-yellow flowers appear in June and 

 July, and are usually borne singly on the 

 top of the stalk, but there are occasion- 

 ally two blossoms on one stem. 



Culture dc. as above for 8. ajugce- 

 folia. 



S. apiculata. — A charming mossy 

 Saxifrage supposed to be a hybrid between 

 8. aretioides and 8. scardica. It has 

 dense rosettes or tufts of small thick 

 linear acute leaves, and produces 6-9 

 flowers of a soft pale primrose-yellow 

 colour on very hairy yellow-green stalks 

 3-5 in. high from February to April. 



Culture dc. as for S. burseriana. It 

 makes a charming pot plant, and also 

 flne carpets in the rock garden. It is 

 better than 8. sancta for this purpose, 

 but does not flower so freely. 



S. aquatica. — A beautiful Pyrenean 

 species with fleshy and shghtly hairy 

 deeply 3-lobed leaves dilated at the base. 

 The large white or rarely yellow flowers 



