LIST OF ILLUSTRATIONS xi 



FACING PAGE 



THE MAIDEN PINK 139 



A SHOWY GENTIAN (G. SEPTEMFIDA) . . . .144 



GENTIANA PRZEWALSKYII 145 



CHINESE PRIMROSE (P. PSEUDO-SIKKIMENSIS) . . .154 

 A STATELY BOG-LOVING PRIMULA . . . . 155 



A ROCK PRIMULA (P. HIRSUTA ALBA) . . . .160 



PRIMULA BEESIANA . . . . . . .161 



ALPINE PINKS AND SAXIFRAGA LONGIFOLIA . . .170 



GROUP OF SAXIFRAGA EXARATA 171 



SILVERY SAXIFRAGES .174 



MOSSY SAXIFRAGES . . . . . . .175 



IBERIS CORREAEFOLIA . .182 



EVERGREEN CANDYTUFT . . . . . .183 



ROCK-GARDEN YARROW 186 



LEBANON CANDYTUFT 187 



BALEARIC SANDWORT 202 



ANTHEMIS MONTANA 203 



AUBRIETIA PRICHARD'S A i . . . . . 208 



AUBRIETIA LAVENDER 209 



SNOW IN SUMMER (CERASTIUM) . . . . .212 



SUN ROSE (HELIANTHEMUM) . . . . . .213 



A HANDSOME SPURGE ....... 220 



HERON'S BILL (ERODIUM) 221 



POLEMONIUM REPTANS 234 



ROCK WALL AND BOG BORDER 235 



OXALIS ADENOPHYLLA . 244 



OXALIS ENNEAPHYLLA . 245 



