THE POLYSTICHUMS 191 
which tend in some cases to expand at the tips into fimbriate, fan- 
like tassels. See Figs. 11, 12, 13, illustrating chapter on Fern 
Selection. 
Fig. 215. P. acul. pulchrum. 
PurcHRUM (Fig. 215).—Fine terminal crests, pinnules acute, and 
pinne usually subdivided at tips; found by Rev. C. Padley in 
Devon. 
P. GRACILLIMUM CRISTULATUM. See Fig. 13. 
P. PLUMOSUM GREEN.—This has varied on the lines of the finest 
angulare divisilobe blumosums of Jones and Fox, but retains the 
aculeatum character, a very beautiful fern. 

