Directions for Specific Culture. 53 
Erysimum Kotschyanum (Asia Minor). 
This species requires the same treatment as 
Erysimum pumilum, but is a better grower. 
Erysimum pumilum (Switzerland). 
The true form of this interesting little Alpine 
is very rare and requires special care. Plant, tightly 
wedged between pieces of limestone, in a hot dry 
place, in limestone and strong loam, without any sand 
or leaf-mould. 
Erysimum ; Remaining species. 
All the other Erysimums grow well in any 
sunny place in ordinary loam. 
Erythraa aggregata (Hab. ?). 
Treat like Erythraza Massoni. 
Erythrza Massoni (Azores). 
Plant in a moist, shady place on the flat, facing 
either east or south-east, in equal parts of leaf-mould 
and loam, together with a little fine peat and sand, 
as this is a plant which runs and roots. In spring, 
before growth begins, in the month of March, and 
again after flowering in autumn, top-dress with 
original compost, worked well in. After flowering, 
remove all old flowering shoots, as they are liable to 
be twisted by the wind. 
Erythronium giganteum (Washington Territory). 
Plant in partial shade facing west, or even north 
if the site isa dry one, in a compost of loam and 
leaf-mould in equal parts, together with a little sand. 
The Erythronium should be planted 6in. deep, in a 
bed of the prepared compost made gin. deep, so 
