HO OF THE ROOT,, 



of three pairs of tapering knobs or bulbs, 

 which flower in succession. On the contrary, 

 Ophrys manorokis, t. 7 1? forms its new bulb 

 so late that it is not perfected till the 

 autumn immediately preceding its flower- 

 ing, and the plant seems to have but one 

 bulb. Ophrys Nidus avis, t. 48, has clus- 

 ters of cylindrical knobs, which are formed, 

 and also wither away, in parcels, each 

 parcel being equivalent to one of the above- 

 mentioned bulbs. 



Such of the Orchis tribe as have bien- 

 nial bulbs are supposed to be very diffi- 

 cult of cultivation, but according to the 

 experience of my excellent friend the late 

 Mr. Crowe, in whose garden I have seen 

 them many successive years, they are best 

 removed when in full flower, the earth 

 being cleared completely away from the 

 roots, which are then to be replanted in 

 their natural soil previously dried and 

 sifted. Afterwards they must be well 

 watered. The bulb for the following year 

 has not at the flowering period begun to 

 throw out its fibres, for after that happens 

 it will not bear removal. Sahjrium albidum 



