with hard white conical glands, which also appear on the edge 
of the bracts and calyx, from which remarkable circumstance 
the species derives its name. The spikes are something less 
than a foot long, and covered at short intervals by pale blue 
flowers, rather smaller than in the well-known Lobelia siphili- 
tica. The sepals are reflexed on the edge and slightly toothed. 
The lower lip of the corolla consists of three sharp ovate lobes, 
the upper of two very narrow channelled reflexed ones. 
Two varieties of it are mentioned by M. Alphonse DeCan- 
dolle ; one a smaller plant with a smooth corolla and calyx, the 
other with oblong downy leaves. We have not remarked 
either in gardens. It is also said to vary with oval, lanceolate, 
and linear leaves, which are more or less toothed. 
4 
