BY CUTHBERT HALL. 565 



any). On the highest hills about Dural and Galston, at an 

 elevation of 400-600 feet, I have frequently come across E. 

 eximia (Yellow Bloodwood). This is a Blue Mountain species, 

 and I do not think it is generally known that it comes so close 

 to the coast. 



Finally, when we come to the north-western quadrant, 

 around Baulkham Hills and Kellyville, the sandstone gives 

 place to the deep clay-shale formation, and we have a corres- 

 ponding change in the Eucalypts ; and we find E. hemip/iloia, 

 E. tereficornis, E. crebra, with a lesser proportion of E. 

 eugenioides and E. siderophloia. 



I should like to add a few words on the flowering periods 

 of the Eucalypts above considered. This is a subject which 

 merits greater consideration than it has so far received. Many 

 Eucalypts flower regularly at the same period every year, 

 others bloom irregularly; and when rain follows a dry spell, 

 they make fresh growth, which soon forms buds, which later 

 on come into flower. Such is the case with E. eugenioides, 

 different specimens of which may be seen in bloom over the 

 greater part of the year, though the main body of bloom 

 comes out in May. With other species again, if the season is 

 dry and unfavourable, the flowering may be slight or missed 

 altogether, or it may be a month or two late. Again, a pro- 

 fuse blossoming after a good season or after a rest, is usually 

 followed by a scanty one the next season. E. tereficornis and 

 E. paniculata are winter and spring bloomers, and flower 

 regularly from June to October, coming in earlier in some 

 years than others. E . rohusta is very regular, and lasts from 

 June to the end of July. E . Bosistoana comes in August, 

 while E. crehra corresponds to E. paniculata, viz., June to 

 October. The species which bloom in midsummer are E. 

 resinifera (December), E. siderophloia (January), and E. 

 saligna, E. piperita, E. acmenioides, and E. pilularis in 

 January and February. In the autumn, ?J . hcemastoma, E . 

 punctata, and E. hemiphloia flower in February and March, 

 while E. longifolia and E. corymhosa come out in March 



