74 President's Address. 



lings are much more vigorous aud flower more freely than the okler 

 plants. Many other species, however, go on gro^ving and increasing 

 in size for years. D. neglectus and glacialis are two of the best 

 of these. I have plants of D. neglectus in my garden for fifteen 

 years, and which are as vigorous as ever, never failing to bloom 

 Avell. D. glacialis is not quite such a long liver, and will be the 

 better of being renewed from seed occasionally. 



Veronica is also a group well worth growing, and I think 

 there is none more handsome than our own wild V. saxatilis ; the 

 brilliancy of its blue flowers is unsurpassable. A pretty hybrid, raised 

 I believe in the Botanic Garden here between this and fruticulosa, 

 called V. Balfouri, is also a desirable plant ; it has rich brilliant 

 purplish-blue flowers. V. Daubenyi is also a pretty variety, with 

 pink flowers. One called V. Lyalli is well worth growing; it has, 

 however, a more upright habit, with glossy shining leaves. 



Some of the Hypericums are good rock plants. H. nummularia 

 is a dwarf plant, with j'^ellow flowers about the size of a shilling. 

 H. cegyptiacum is also a small growing sort, and rare in collec- 

 tions; these are both well worth looking after. A procumbent 

 variety called reptans, with very large flowers, seems almost the 

 counterpart of H. humifusum, a native species, but more than twice 

 the size in every way. This makes a capital plant for drooping 

 over rocks and stones, and also as an edging. Most of the plants 

 belonging to this family are large, and many of them are well suited 

 for the herbaceous border. H. speciosum is a very floriferous plant 

 with white flowers, but is too large for the rockery. Bellis rotundi- 

 folia coeridescens, from Mount Atlas, commonly called the blue daisy, 

 can be depended upon to stand our winters mthout protection. 



Senecio ahrotanifolius is not often seen in nurserymen's catalogues, 

 but is well worth looking after, as it is a dwarf-growing plant; 

 the leaves are very much cut and divided almost like parsley, the 

 flow^ers are bright orange, and it is easily grown. Geranium 

 argenteum, nearly allied to G. cinereuia, but with more silvery 

 white leaves, is a striking plant ; it is slow growing, and takes 

 years before it is strong enough for division. G. cinereum is more 

 vigorous, and the flowers of this and G. argenteum are very much 

 alike, of a pale pink tinged with purple. 



Many of the Linarias are very small and low-growing, and make 

 capital rock plants. L. pilosa, the smallest, does not rise an inch 

 from the ground, but grows very dense and sj^reading, L. hejiati- 

 nifolia is also a spreading plant, with pretty little purple flowers. 

 L. pallida is free growing, spreading, and very handsome when in 

 flower; it is, however, such a running-rooted species that it is not safe 

 to put it into a rockory beside other things, as it soon overgrows 



