166 



EXPLANATION OF PLATE 47. 

 Callitris robiista, R.Br. 



A. Twig bearing male flowers and cones. A 1 . Portion of branchlets 



enlarged. 



B. A cone opening. 



c. A cone further advanced, showing the prominent central columelia. 

 (Letters A-C from Dubbo, N.S.W.) 



D. Cone of " Murray Pine " from Mildura, Vic., furrowed at the 



valves. 



E. Young cone of Red Pine from Dubbo, showing long stalk, and cone 



somewhat pointed. 



F. Branchlet (enlarged) bearing male flowers. 



G. Scale with anthers. 



H. Fruit, bearing a few small warts or tubercles, 

 j. Seeds. (F-J from Mount Lofty, near Adelaide.) 



Callitris propinqna, R.Br. 



K. Branchlet (enlarged) bearing male flowers, Bremer Bay, W.A. 



L. Portion of branchlet bearing male flowers, much enlarged. 



M. Staujen with anthers. 



N. Cone, showing columelia. 



o. Seeds. (L-O from Quiedong, near Bombala, N.S.W.) 



p. Portion of branchlet (enlarged) from Sandy Creek, near Gawleiv 



S.A. (The fruit, being identical with that of Quiedoug, has not 



been also drawn.) 



Q. Cone a little pointed and sparingly tuberculate, from Wentworth, 



N.S.W. 

 R. Cone from type locality (Kangaroo Island. S.A.). For another 



fruit of C. prophiqua, see letter H of Plate 40. 



Callitris columellaris F.v.M. 



s. Branchlet (enlarged) bearing male flowers. 



T. Cones, opening and shedding seeds. 



u. Cone showing the prominent columelia, from which the species 



was named. 

 v. A single columelia. 

 w. Seeds. (All from type locality, Richmond River, N.S.W.) 



Callitris calcarata, R.Br. 



C. calcarata and C. Muelleri are often confused. In the latter there is 

 but one columelia, in the former several, of irregular form. In calcarata 

 the space between the leaf-scales is smaller than in 3[uelleri and the branch- 

 lets are much less coarse. 



C. calcarata, the Black Pine, and C. robusta, the White Pine, are often 

 confused in general descriptions, and the following notes bring oufc their 

 chief points of difference. The Black Pine has usually bright green foliage,, 

 while that of the White Pine is silvery. The cones of the Black Pine have 

 usually stiff points on them; this is only exceptionally the case with Whito 

 Pine. The stalk of the fruit is usually slender in the case of White- Pine. 

 In the case of Black Pine the cones persist 011 the old wood for many 

 years; White Pines have usually many fallen cones under each tree. Usually 

 the seeds of the Black Pine are reddish-brown in colour, while those of thi* 

 White Pine are of a pale brown. 



