NATIVE FLORA OF TROPICAL QUEENSLAND. 423 



of which he gives as the "Yappar." He writes: — "The 



hills were composed of iron-sandstone The 



intervening flats bore either a box-tree with a short trunk 

 branching off immediately above the ground," etc., (op. cit. 

 p. 337). 



Eucalyptus pruinosa (Silver-leaved Box) is a common 

 tree between Croydon and Normanton, and also at Donor's 

 Hill, Cowan Downs and Boomarra on the Normanton- 

 Oloncurry road. When observed at a distance it is identical 

 in appearance with E. melanophloia (Silver-leaved Iron- 

 bark), but at close range the barks are seen to be totally 

 different, that of the latter being hard, dark and deeply 

 furrowed, while that of E. pruinosa is a light grey box 

 bark (Plate LXI). The branchlets of jE. pruinosa are 

 usually very angular, often quadrangular, and fruits from 

 Normanton measure as much as 9 mm. long by 8 mm. in 

 diameter, while some from Cowan Downs are 1 cm. long 

 by 6 mm. in diameter. 



Seedlings — Hypocotyl erect, terete, pale green, glabrous, 

 up to 1*3 cm. long. 



Cotyledons slightly emarginate or almost reniform, 

 entire, 5 to 8 mm. by 3 to 4 mm., upperside green, under- 

 Side paler, glabrous; petioles 3 to 4 mm. long. 



Seedling foliage opposite, entire, glabrous, elliptical- 

 lanceolate, tapering into a short petiole of not more than 

 1 to 2 mm. long: midrib prominent on underside, lateral 

 veins few, and arranged at angles of about 50° to 60° with 

 midrib, reticulate between, intramarginal vein obscure on 

 margin or absent. On a seedling six inches high the second 

 pair of leaves measured about 1 cm. each, while those of 

 the sixth to the tenth pair measured from 2 to 2*5 cm. with 

 a width of 6 to 7 mm., the internodes increasing in length 

 from about 1 to 1*8 cm. In one specimen the first internode 

 measured 2 cm. 



