PRIMULACEyE 383 



the margins; flowers fairly large, rose-lilac, on stem of 

 i 1 4 -3 ' 2 in.; calyx petaloid, ciliate and very prominent. 

 It literally carpets rock-slopes in the limestone Alps of 

 eastern Switzerland. 800-2000 m. Easily grown in 

 rockeries; partial sun. The last three species will 

 readily make themselves at home in walls, given a full 

 north or a northerly position. 



P. farinosa* (PI. LXXIV). Small native of alpine 

 bogs; roots strongly scented with anise; leaves covered 

 below with a white or sulphury meal ; flowers in varying 

 shades of bright red in erect umbel. May-July. Moist 

 grasslands of the mountain districts. Highly recommend- 

 ed for gardens ; selective cultivation has produced a 

 variety with pure white flowers. The Balkan frondosa 

 is often sold for it a charming plant but the petals are 

 not cut in the centre and the farina is much more 

 abundant and covers the leaves on both sides. 



P. longiflora, from moist, high turf in the Pennines, 

 Oriental Alps and Dauphine, is distinguished by almost 

 entire leaves, few-flowered umbels, larger bloom, the 

 corolla-tube three times as long as the calyx. Easily 

 grown in sunny, porous and moist soil and a charming 

 ornament to a rockery. 



Cortusa 



C. Matthioti (PL LXXIV) is a graceful plant with soft 

 heart-shaped leaves, daintily palmate; a slender, downy, 

 leafless flower-scape; a small, terminal raceme of most 

 vivid carmine, drooping, bell-shaped flowers. July. 

 Torrent banks and shady places in the Grisons. 



C. pubens a fine, larger-flowered variety, with greyish 

 leaves, flowers well in gardens, but requires a position 

 which will be fairly dry in winter. The soil for both 



