220 THE GARDENER. [May 



a Triteleia, with flowers of a deeper tint of blue than generally appears 

 in T. uniflora. It was, no doubt, closely allied to this species, which 

 is one of the most useful of the hardy spring-blooming plants. 



K. D. 



I^OTES ON HARDY HERBACEOUS PLANTS. 



Adexophora is a genus closely resembling, in all superficial features, 

 Campanula, from which it was sej^arated on account of the glandular 

 cylindrical tube or disc that surrounds the base of the style. The 

 generic synonym Campanula is therefore common to all the species, 

 and under that name they are sometimes circulated in Continental lists. 

 They are very useful hardy herbaceous plants, but possessing very little 

 variety of colour, stature, and habit — blue, in lighter and darker tints, 

 being the colour of all. They wdll be found most useful for the shrub- 

 bery and mixed border, and are easily cultivated in almost any kind 

 of garden soil, if not wet and stagnant. 



A. liliifolia is perhaps the best and most useful species in the family. 

 It grows to the height of about 2 feet or 2 J feet, with narrow lanceo- 

 late leaves and rather erect stems, terminating in panicles of pale-blue 

 flowers, which appear in the end of May, and last till the middle or 

 end of September. Native of Siberia and Dahuria. 



A. suaveolens reaches the height of about 2 feet, with erect stems 

 and spreading terminal panicles of pale-blue flowers, ajDpearing in June 

 and July, often also throughout August. Native of Siberia. This 

 species appears to be a dwarf and more comj^act form of the A. com- 

 munis from the same country, but a taller and coarser plant every 

 way than the A. suaveolens. It is also sometimes confounded with 

 A. liliifolia and vice versa, from which, however, it is distinct ; and at 

 present in this country it is more plentiful. 



Siimjjhiandra is a genus of Campanulaceae, consisting, so far as is at 

 present known, of only one species. It is simply a peculiar Campanula, 

 and was separated from that genus on the ground of the anthers adher- 

 ing together somewhat in the manner of the Composites. The only 

 species, S. pendula, syn. Campanula pendula, is a native of the Cau- 

 casus. It is a choice and distinct plant, growing 1 foot or 1^ foot high, 

 with erect stems terminating in rather spare spikes of drooping cream- 

 coloured flowers, large and campanulate, and appearing in June and 

 July. It is regarded as being difficult to keep, and by some on this 

 account it has been set down as a biennial, but it is not so. It is, how- 

 ever, very impatient of full exposure to the sun in light dry soils, and 



