58 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 
Genus ARAUCARIOXYLON Kraus 
Araucarioxylon noveboracense sp. nov. 
Plate 21, figs. 1-3, 5, 6 
“ Wood of Araucaria or an allied genus.” Jeffrey, Annals Bot. 20: 
388. pl. 28. f. 14, 15. 1906. 
In fig. 1, PL 21, is shown a transverse section, X 40, of an 
draucarioxylon which is very common in the lignitic remains found 
in the Drummond pit. We have not found a single fragment of 
any similar remains in the Androvette pit, which supplied practically 
all the leafy twigs with structure sufficiently well preserved for more 
or less accurate diagnosis. This Araucarioxylon was previously 
figured and described as the wood of Araucaria or an allied genus, in 
a paper on “ The Wound Reactions of the Genus Brachyphyllum " 
in the Annals of Botany, above cited, but a fuller description is here 
supplied. Figure 1 may be compared with the similar section of 
Brachyoxylon shown in fig. 2, Pl. 13, having the same degree of 
magnification. It may be seen that in our specimen of Ягаисапоху- 
lon the tracheids are considerably larger than they are in the lignites 
presenting the structural peculiarities of the genus Brachyphyllum, 
and that, further, there are somewhat numerous cells present with 
dark contents, comparable to similar cells occurring in the wood of 
certain species of the living „ра из and Araucaria. Such cells 
appear to be absent in the lignites of the Brachyphyllum type. Fig- 
ure 2, Pl. 21, is part of the section shown in fig. 1, X 180. The res- 
iniferous a interspersed among the tracheids may be still more 
clearly made out in this figure and the additional fact may be dis- 
cerned that the tracheids are filled with a matrix similar to the muci- 
laginous contents found in the tracheids in wounded roots of living 
species of 4gathis and Araucaria, as one of us has observed. This 
matrix is in all probability of the nature of a fossilized gummy secre- 
tion, formed as a result of wounding. This conclusion gains strong 
probability from the fact that in the actual trunk from which this sec- 
tion was made, which still retained its bark, numerous citatrices were 
present on the outside of the stem as well as evidences of healed 
wounds in the deeper layers. In the article on the wound-reactions 
of Brachyphyllum, above cited, mention has been made of the nature 
of the wound-reactions in living araucarians. Figure 4, Pl. 21, 
