Viola alba.
— bicolor.
— biflora.
— canina.
— collina.
— elatior.
— hirta.
— ionodium.
— lancifolia.
— mirabilis.
— nana.
pollen-grains of.
— odorata.
— palustris.
— Roxburghiana.
— Ruppii.
— sylvatica.
— tricolor.
Voandzeia.
Walnut, the.
Watson, H.C., on cowslips, primroses, and Oxlips. Primula elatior.
Weddell, Dr., on hybrids between Aceras and Orchis.
Wetterhan, Mr., on Corylus.
Wichura, Max, on hybrid willows. sterile hybrids.
Wirtgen on Lythrum salicaria.
Wooler, W., on Polyanthus.
Wray, Leonard, on Fragaria.