270 ALPINES AND BOG-PLANTS 
Ranunculus aconitifolius, Anemone rivularis, Thalictrum 
aguilegifolium, Lychnis haageana, Spiraea japonica, with 
its fellows, and Mimulus Model and Mimulus Brilliant— 
which are also magnificent on the inner edge, pushing 
masses of rose and vermilion right out over the water— 
and, of course, besides the larger Primulas, pulverulenta, 
japonica, and sikkimensis, the invaluable, gorgeous Myo- 
sotis palustris, which, like the Mimulus, is no less beautiful 
and effective for the very water's edge itself. 
If, too, you plant Potentilla Comarum and Menyanthes 
trifoliata on the rim of the pond, they will both spread 
and ramp forwards across the face of the ripples. Calla 
palustris, on the other hand, is, I think, happiest when 
within root grip of wet fat mud. The Potentilla and the 
Menyanthes thrive quite happily, emitting tufted silky 
roots into the water, but the bog-Arum prefers the help 
of a little soil, making mats of heart-shaped leaves across 
the wet marsh, and sending up all along its branches the 
white flowers, miniatures of Calla ethiopica. Orontiwm 
aquaticum, another Aroid, with yellow spathe, loves 
shallow water, but, for my own part, I have never 
admired its colour, its shape, or anything about it, and 
therefore have never made any prolonged effort to grow 
it. Hottonia palustris is a dainty native, for quite shallow 
depths, filling a whole pool with white fibres and masses 
of the finest lacy foliage, from which shoot up above the 
depths, whorled spikes of very large flowers of a very pale 
rose-violet. With this I have never had much to do. 
My efforts to establish it did not prosper, and, so heartily 
does it grow when the will takes it, that I do not alto- 
gether regret the fact that, in my case, the will was 
lacking. 
Of course, if you want a very full collection of water- 
plants, you will not only build one false wall, giving you 
a marshy edging to your pond, but also, within that 
