i8i 



(c) Chemistry. 



This sample of bark was taken from a log sent to the Museum from Port 

 Darwin by Mr. N. Holtze, Curator of the Botanic Gardens there. 



The log was 7 inches in diameter, and the bark was somewhat hard and 

 compact, dark grey externally, deeply furrowed and fibrous. In thickness it 

 ranged from 7 to 10 mm. 



The following results were obtained with the air-dried bark :■ — 



Moisture ... ... 11-14 P^r cent. 



Total extract ... i6-i8 ,, 

 Non-tannin ... 5-46 „ 



Tannin ... ... 10-7 



2 



8. Callitris gracilis, 



R. T. Baker, Proc. Linn. Soc, N.S. W., 7903, p. 39. 

 ''CYPRESS" OR "MOUNTAIN PINE." 



Habitat. 



Tal Tal Mountain and Gowie Range, Bylong, Rylstone. J. Dawson, L.S., 

 and R. T. Baker. 



I. HISTORICAL. 



This pine was discovered in 1893 by J. Dawson, l.s. In the same district 

 are also found C. calcarata, R.Br., C. glmica, R.Br., C. Tasmanica, Nobis, C. Muelleri, 

 Benth. and Hook. In the fineness of the branchlets it approaches C. rhomboidea, 

 R.Br., and C. arenosa. 



It is always found at higher elevations than any of its local congeners, 

 as it occurs on ridges or rocky mountains in company with (although in the higher 

 ridges) C. calcarata, R.Br., which species, however, extends on both sides of the 

 Coast Range and well into the interior, whilst this Pine, so far, has only been 

 found on the Western slopes. The fruits show a remarkable likeness to those 

 of C. Muelleri, but the branchlets with the decurrent leaves show no resemblance 

 to that species. The long, fine, drooping branchlets occasionally, give it a willow- 

 like appearance, and in addition to other differences the chemical constituents 

 are distinct from those of this latter species. 



