THE EUROPEAN SPHAGNACEZ 809 
por na little or not at all undulate, not rarely secund ; 
inner surface with large non-bordered pores 
betwati oe fibrils in the middle of the ten wall; on the 
outer surface with small bordered pores in the cell- 
angles, rire "alas frequently towards ihe’ oe in shor 
commissures ; in the basal part towards the 
lateral margins with large pores in the upper cell-angles 
only. Border narrow. Stem-cortex distinctly differen- 
tiated. In the smaller forms by the softness of the tufts 
“maar S. molluscum. pipe a beautiful 
brown colour 8. balticum Russ. 
10. Br. 1. on rte 3 inner surface almost naiiany? without pores, 
or only with very small, scattered bordered pores in the 
cell-angles of the upper ‘part et. a ne f 
S. annulatum mg fil. 
10. Br. 1. over the entire inner wie Bees vith numerous larg 
non-bordered pores . . . xxviii. S. Jensenii Lindb. fil. 
‘ is Gk ll Schimp. disse 67, pl. 25 & 27, 
8: 
Exsicc. Braithw. pppeen. Brit. Exsice. No. 45. 
Plants very robust or more delicate; when growing in water 
green throughout, otherwise brown, or, especially in the capitulum, 
dirty violet. 
Wood-cylinder generally brown, more rarely gre 
Stem-cortex 3-4-layered ; always clearly dikerentiated from the 
wood-cylinder; cells of medium width, gradually thinner walled 
from within outwards, non-por 
Stem-leaves large, bent hackeaite along the stem; from 
narrower base widened above; fimbri on the broad- scokded 
several times septate ; in the apical half and above the base in the 
middle of the leaf with the wall reabsorbed on both sides; slightly 
fibrillose above the base only. Stem-leaves in structure and form 
very closely re sembling those of S. fimbriatum. 
ascicles ee of 4~5 branches, sometimes distantly, some- 
times more closely to very densely arranged ; generally with two 
stronger pa Shinran branches, the others, only a little weaker, being 
pendent; spreading branches drepano-, homalo-, or ano- cladous, 
with the leaves sometimes loos sely, sometimes densely arranged all 
round the stem; leaves from the two kinds of branches not differing 
in size. 
Branch-leaves ovate- —— toothed on the narrowly truncate 
apex, with rather wide border; margin inrolled only at the apex; 
when dry not or but little ciiulate, but with a distinct metallic 
apical half, sometimes with numerous, sometimes with few, round, 
non-bordered pores in each cell-angle; more rarely the pores are 
