96 Dr Arber and Mr Goode, On some fossil 
Xenotheca devonica gen. et spec. nova. 
Plate IV, figs. 1—7, 10—11. Text-fig. 2. 
The most interesting fossil obtained from Baggy Point appears 
to be a cupule-like structure, or at least an organ connected with 
a fructification. A large number of specimens have been collected, 
but they are all fragmentary and in many cases badly preserved. | 
They however appear to represent a quite new type, which is 
certainly of interest. A general idea of this fossil is given by the | 
diagrammatic restoration shown on text-fig. 2. This, while not — 
accurate in detail, is substantially correct. 
X enotheca, as we propose to term this new genus, consists of a 
dichotomously branched axis, forking several times, the finer 
branches being terminated by fairly large, cupule-like structures, 
which are here termed theca. 
svt 
Fig. 2. Xenotheca devonica gen. et spec. nova. Restoration, about natural size. 
Habit specimens. The general habit is that shown on fig. 10, 
Plate IV and text-fig. 2. The axis repeatedly forks, and each — 
branch may end in a cup-shaped organ. No example has been 
obtained in which four thecw undoubtedly occur at the ends of all — 
four branches in continuity, but in the specimen figured on 
Plate IV, fig. 10 at least three and possibly four thece are present. 
In those examples in which the axis is least fragmentary the 
thece are usually badly preserved, and in this specimen it is 
impossible to decide whether one or two cups occur on the right- — 
hand side. The length of the branches of the first dichotomy here 
is 22cm. and of the second about 5mm. The axis varies in 
breadth from *5—1 mm. 
In another example the length between the first and second — 
dichotomies is 3:2 cm. 
