Directions for Specific Culture. 67 
Iris paradoxa (Georgia and N. Persia). 
This is a beautiful species, of comparatively easy 
culture. Plant where it will be dry in autumn and 
winter, in full sun, in sandy, gritty loam. 
Iris verna (United States). 
Treat like Iris cristata. 
Isopyrum thalictroides (S. Europe). 
Plant in a sunny position on the flat, facing 
south, where it will not be overrun by coarser plants 
or disturbed after it loses its foliage at the beginning 
of June, in sandy loam. 
Jasione perennis (S.W. Europe). 
Rather a strong grower, but effective for larger 
rockeries, as it flowers all through the summer 
Plant on a bank facing south, in sandy loam. After, 
flowering, top-dress with equal parts of grit and loam, 
taking care not to bury the little rosettes. After 
they have flowered, the old flowering-stems should 
be carefully clipped off, as if pulled away the young 
growth often comes with them. 
Jeffersonia binata (Tennessee). 
Plant in a shady position on the flat by the side 
of a bog, in any aspect, in equal parts of peat and 
loam. In autumn, after the foliage dies down, top- 
dress with a little peat. 
Lathrea clandestina (Europe). 
A curious parasitic plant, the flower of which 
lasts for weeks when out. Plant in autumn, in 
shade, on the surface roots of a Poplar, using a 
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