252 THE JOURNAL OF BOTANY 
THE EUROPEAN SPHAGNACEA 
(aFreR WarnsToRF) 
By E. Cartes Horrett, F.L.S. 
(Continued from p. 224.) 
9. S. quinquerartum Warnst. Hedwigia, 1885, pp. 222 et seqq. 
Syn. S. acutifolium var. quinquefarium Braithw. The Sphagnacee 
1880). 
Plants slender and Sir eat as S. Warnstorfii, or strong and 
robust as S. Russowii, in looser or denser, taller or shorter tufts ; 
pale, grey- to grass-green, or in the upper part a beautiful rose- or 
violet-red. 
Wood-cylinder pale or straw-yellow, never red ; cells nodulose. 
Stem-cortex in 8-4 layers, cells of median widt h and thin-walled. 
piel wall of the superficial layer with vary scattered membrane- 
thinnings, which frequently also, however, become converted into 
non-bordered pores; inner cells non-porose. Stem-leaves from a 
broader base deltoid, not lingulate, apex often suddenly contracted, 
truncate and toothed, and with inrolled margin; border muc 
widened below, formed of very narrow, greenish, nodulose cells. 
Hyaline cells in the whole middle part of the leaf wide, in the 
npper part almost rhombic, in the lower part rhomboid, generally 
one to several times divided by oblique cross-walls, and with plice 
on the walls; more frequently item than with fibrils and pores 
in the upper part of the leaf; auricles small. 
Fascicles generally with five branches s, of which the three 
ar 
arrangement of “ seereig retort-cells of the cortex with but 
toothed apex; border of 2-3 rows of narrower cells. Pores on the 
are strongly ringed, sea — ih S. Warnstorfii, and not 
e lea. eayv 
e the ~ with a Loededinal fold ; hyaline cells with plice on 
i. surfac 
a coletie cells in section mieneuar re trapezoid, inserted 
between the hyaline cells on the inner surface of the leaf, and here 
always free; on the outer surface either sa le by the more 
