184 THE JOURNAL OF BOTANY 
several cells in a single row, or the filament may be biseriate at 
the base. They differ considerably in shape and size from those 
The spore-sculpturing of the Woodbury Common Fossom- 
-bronias is very varied. Capsules may contain furcate (cristata 
mixture of the three kinds. The range in number of pits on the 
36-14 28-18 24-12 
34-22 26-14 22-9 
32-16 25-15 22-8 
24-14 
30-18 
These spore* ranges include those described or figured for 
Fossombroma angulosa and F. Dumortieri, and may include that 
of F’. Crozalsit. 
The margins of the spores were membranous, submembranous, 
or ragged. hese three conditions were found in the same 
capsule, or, one or the other, was more or less characteristic of a 
given capsule. 
The range in number of ridges (counted under similar condi- 
tions) on the spores of different capsules of the Fossombronias 
with fureate spores varied as follows :— 
-22 (range described for F. pusilla). 
18-22 Effingham. 
18-26 Stoke Canon. 
24-30 Effingham. 
28-36 (range described for F. cristata). 
34-42 Stoke Canon. 
36-46 Stoke Canon. 
The general similarity in form of the Fossombronias considered 
here, their life cycle, their monoicism, the possession of filamentous. 
amphigastria, and the variation in spore decoration, suggest that 
ph nepali hs eh 
Countings were made of all the pits that could be seen on looking down 
upon the top of the spore. Systematists generally count the number of com- 
plete pits visible. 
evue Bryologique, 1903. 
