232 Transactions of the Royal Microscopical Society. 
authors as doubtful species, partly because they have never been 
found in fruit ; the structure of the leaves and stem is, however, so 
distinct that there can be no hesitation in maintaining the right of 
Sph. Pylaiei, as the most highly developed form, to the title of 
specific rank. 
The var. sedoides quite resembles Sph. laricinum var. cyclo- 
phyllum and also a simple form of Sph. subsecundum var. ohesum 
which Mr. Barnes has recently sent from Staveley ; yet here also 
the sections of the leaves and stem will readily enable us to refer 
each to its proper specific type. 
