BY J. J. FLETCHER AND C. T. MUSSON. 229 



large specimens are dried, though tlie wood does not crack. But 

 the large, composite tumours of seedlings liable to them, crack 

 longitudinally, sometimes almost to the centre, when drying, as 

 already mentioned. Mr. Cambage's specimens are not old 

 enough to show this development, if they have it in later stages. 



Group ii. — Two l^loodwoods, E. corymbosa and E. exiniia, 

 which have but one efl'ective pair of axillary stem-nodules, as a 

 rule; though other unimportant ones may appear in late stages: 

 but the fusion of this pair, almost invariably fuses with an 

 indefinitely located, unpaired nodule at a lower level; and the 

 resulting, composite tumour extends downwards, partially or 

 entirely surrounding the axis, and incorporating lateral roots. 



Group iii. — Species liable to attack, but susceptible or refrac- 

 tory in varying degrees. This group will include all the Mallees, 

 and the three species mentioned by Tate (E. viminalis, E. ros- 

 trata, and E. leucoxylon), of which we have not seen specimens. 

 ' County of Cumberland and the Blue Mountains. — E. hcema- 

 ■Homa, E. tereticornis, E. Deanei, E. saligna^ E. maculosa^ E. 

 rubida, E. Luehmanniaria, E. squamosa, E. crebra, E. ^^aniculata, 

 E. siderophloia, E. sideroxylon^ E. amygdalina, E. piperita, E. 

 hetniphloia, E. longifolia (nursery-seedlings), E. i^esinifera, E. 

 robusta (nursery-seedlings), E. cajntellata, E. eugenioides, E. 

 Sieberiana, E. Moorei, E. stricta: and seedlings of sevei-al species 

 not identified. We have not been able to get seedlings of E. 

 botryoides and E. maculata. 



Berrima and Moss Vale. — ^. amygdalina, E. coriacea, E. dives, 

 and E. Macarthuri [all collected by Mr. Cambage; who has also 

 given us two specimens of E. coriacea from Jindabyne, K.S.W.I. 

 We are indebted to Mr. E. Cheel for a fine late stage of E. 

 6ieberiana from Hill Top. 



Marulan, — E. cinerea (Argyle Apple), and fine seedlings of 

 three unidentified species locally known as Yellow Box, Broad 

 Peppermint, and Snappy or Brittle Gum [collected by Mr. H. H. 

 Solomon]. 



Wyalong, N.S.W. — E. Behriana, E. fruticetorum, E. viridis 

 [collected by Mr. W. J. Mofiat and Mr. Cambage]. 



Queensland.— Axillary stem-nodules have been recorded by 

 Mr. Cambage on a seedling of E. pallidifolia-* and he has in- 

 * Journ. Proe. R. Soc. N. S. Wales, xlix., p. 435 (1916). 



