DESCRIPTION OF PLATES. 
SELIGBRIA CALCICOLA (Mitten). 
S. PATJCiPOLiA (Garruthers). 
S. SUBCERNTJA {8chp.). 
" Gregarious, leaves erecto-patent, subulate from an oblong base, margins 
plane, nerve strong and exserted, areolae rectangular, capsule upright, on 
a long seta, lid with a long beak," 
Not uncommon on chalk nodules, protuding from the turf on the sides 
of disused roads and turfy banks, on the northern slopes of the Downs 
round Lewes. Frequently observed on isolated pieces of chalk in and 
around Stanmer Park, also on Wolstonbury Hill. " As a British plant it 
is only found in Sussex." Not noticed in Wilson's " Bryologia." 
Reference to Fig. : — a. natural size of plant ; b. the plant, x 2 in. ; c. cap- 
sule, X ] in.; cc capsule and lid, x in. ; e. leaves, x I in. ; /. apex of 
leaf, X 1^ in. ; g. basal cells of leaf, x 5 in. ; h. cells of mid leaf, x ^ in. 
ACAULON TRIQUETEUM (Spruce). 
PhASCUM TRIQUETEUM. 
Stems, scarcely any ; leaves cueulate, obovate, sharply keeled, cells large ; 
root leaves minute ; margins reflexed ; nerve excurrent ; apex recurved ; 
capsule spherical, on a curved pedicel immersed. 
On the Cliifs between Brighton and Rottingdean and between Rotting- 
dean and Newhaven, frequently associated with Poltia cavifolia. A minute 
periodical plant, occurring only in some years. First discovered by the 
late Mr. W. Borrer, 1844, Since found occasionally by other Sussex 
Bryologists, and by " Mr, Mitten, in various parts of the Sussex Coast." 
Reference to Fig. : — a. natural size of plant ; h. the plant, x 1 in. ; 
c. stem leaves, x 1 in. ; d. apex of leaf, x ^ in. ; e. capsule, x 1 in. ; 
/. basal cells, x J in. ; g. young plant, enlarged (from Wilson) ; Ji. root 
leaf, X 1 in. 
