THE LYCOPODS (CLUBMOSSES) 



they have been maintained ever since. In order to respect their evident need for a dry- 

 dormant period, they are dried out annually and placed in a cupboard for some months, 

 the season chosen being the winter instead of the summer in order to give them the 

 benefit of such sunshine as is available in Manchester. Under this treatment they have 



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t 



Fig. 254. Isoetes hystrix Durieu. a. Pot of plants from the Lizard, Cornwall, growing in cultivation. Half 

 natural size. b. Two wild specimens pickled as found, the left-hand plant from the Lizard, the 

 right-hand plant from Guernsey. (Note the double crown in the latter case.) Natural size. 



increased very greatly in size, as the photograph of Fig. 254^ taken in 1945 will show. 

 This is half natural size, and yet the plants in it resemble the full stature of the original 

 wild specimens which are shown, pickled at the time of collection, in Fig. 254^. In this, 

 the left-hand specimen is a plant from the Lizard, as are those of Fig. 254a; the right- 



256 



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