CRETACEOUS CONIFERALES 57 
compressed vertical resin canals may be seen to stretch away from 
the right-hand side of the mass of wound callus, which marks 
the site of a healed wound. It may be seen from the above 
data that the type of wood found in the well-marked extinct 
group of araucarineous conifers represented by Brachyphyllum and 
by the lignitic fragments just described, differs from that present 
in the living Agathis and Araucaria in several important particulars, 
which serve to relate the group in question to the Abietineae. Since 
this type of wood is quite distinct and easily recognizable, it seems 
very desirable that it should bear a special and distinctive name, which 
will clearly separate it from Araucarioxylon Kraus. In the latter 
genus the pits are always alternating or at least flattened by mutual 
contact, while in the type under discussion they are quite as often 
remote and round in configuration as they are flattened by mutual 
propinquity, and seldom or never alternate. The resiniferous ele- 
ments which are commonly, although not universally, present in the 
wood of Araucaria and its immediate allies are absent, so far as we 
have been able to distinguish, in rather abundant material of Brachy- 
phyllum and related genera. Further, wound reactions, which, con- 
trary to what might be supposed, are frequently represented in fossil 
woods, supply a clear distinction between ‚/raucaryoxylon and the 
type under discussion; for in the latter wounds lead to the formation 
of traumatic resin canals, such as have not been found to occur in 
Araucarioxylon or in the wood of Agathis and Araucaria. 
We have considered it advisable to discuss at length this new type 
of araucarineous wood and to designate it by the generic name 
Brachyoxylon in order to define its affinities, since it is very abundant 
in the Kreischerville deposits and is found to characterize leafy twigs 
which on the basis of the vegetative habit alone, have been referred 
to almost all tribes of the Coniferales, other than the Abietineae and 
Araucarineae. 
Locality: Androvette pit. Collected by E. C. Jeffrey and Arthur 
Hollick. Specimens in Jeffrey collection, Cambridge, Mass. 
