CRETACEOUS CONIFERALES 55 
“Wood of Brachyphyllum." Jeffrey, Annals Bot. 20: 384-386. 
pl. 27. f. 1-12. Oct., 1906. 
Radial pits not all alternating or mutually flattened as in Jraucari- 
oxylon Kraus, but as often or more frequently of rounded configura- 
tion and not contiguous. The alternating or flattened condition of 
the radial pits generally confined to the terminal walls of the tra- 
cheids.  Resiniferous elements characteristically absent. Wounds 
leading to the formation of traumatic resin canals, which are not 
present under any conditions in Araucarioxylon Kraus (Emend 
Hollick and Jeffrey). 
In our preliminary paper in the American Naturalist (/. c.) we 
identified certain araucarineous lignites present in the Androvette pit 
as probably the wood of Brachyphyllum. As a result of our fuller 
knowledge, derived from a continued study of the Staten Island 
lignites, we are no longer in the position to affirm that these frag- 
ments of fossil wood actually represent the wood of the genus 
Brachyphyllum, for, as we have determined, a number of other 
araucarineous conifers, which have in general been erroneously 
referred to other tribes of the Coniferales, possess the same general 
type of wood structure. The correct statement of facts appears 
to be that during the Cretaceous and earlier Mesozoic times there 
were present numerous representatives of a peculiar araucarineous 
tribe or sub-tribe, essentially different in anatomical structure from 
the genera of the Araucarineae still living.  Brachyphyllum was 
only one of the numerous genera of this important group, which 
in all probability ceased to exist in the changes which ushered in 
the Tertiary period. The fact that on account of the richness of 
the display of this type of araucarian and the uniformity of ligneous 
structure presented by it, it is no longer possible to relate the lignitic 
fragments of wood to any one genus, makes the fuller knowledge 
of this type of wood not less but rather more important than at 
first appeared to be the case. 
igure 2, Pl. 13, shows a transverse section of this wood, X 40. 
Three annual rings are included in the field of view. The wood is con- 
spicuously without resiniferous elements, so far as can be judged from 
this section. Figure 4, Pl. 13, shows a longitudinal section of the same 
specimen, X 180. ‘The pits occur in a single row as in the case in the 
small-leaved species of the living Araucaria. They have the arau- 
carian peculiarity of being flattened by mutual contact. In fig. 5, Pl. 
