234 Borratt . — A Contribution to our Knowledge of the 
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DESCRIPTION OF PLATES VI AND VII. 
Illustrating Miss Barratt’s paper on the Vascular System of the Genus Equisetum. 
PLATE VI. 
Fig. 1. a-g. Drawings of sporelings taken from the same culture towards the end of the first 
season’s growth. Note the great variation in size and development of the different plants grown 
on prothallia from spores sown at the same time. The prothallial lobes have been removed. 
Natural size. 
