301 



Cotyledons slightly cmarginatc, 1-7 mm. long, 5 mm. Ijroad, loljos ol)long-obtusc, upper side 

 green, underside red, glabrous; petiole 2 mm. long. 



Seoilliri'^ foJiagP opposite for two or three pairs, entire, glabrous, oval-lanceolate to ovate and 

 ovate-lanceolate, obtuse. First pair up to 14 cm. long, 7-5 mm. broad, upperside green, underside red to 

 purple, petiole 2 mm. long. Second pair up to 3 cm. long, 1'8 cm. broad, underside red to jmrplc, petiole 

 5 mm. Third pair up to i-7 cm. long, 24 cm. broad, underside at first reddish purj)le, becoming pale 

 green, petiole ujj to 7 mm. 



Stems red. 



The seeds germinated twelve and a half years after being gathered. .Plants when about 6-8 inches 

 high developed nodules or swellings about the axis of the cotyledons, which had fallen. 



RANGE. 



Near Pokolbin, a quarter of a mile west of portion 146, Parish of Rothbury 

 County of Westmoreland, New South Wales. 



This species is a Mallee growing on the side of a hill amongst Eucalyptus 

 siderophloia Benth., E. maculata Hook., Callitris calcarata R.Br., Casuarma Luehmanni 

 R. T. Baker, and C. stricta Ait. The specific name is in allusion to the dwarfed habit 

 of the tree. 



AFFINITIES. 



1. With E. dealbata A. Cunn. 



Its closest affinity appears to be with E. dealbata A. Cunn., from which it differs 

 in bark and timber, as well as the texture of the leaves, and the position of the intra- 

 marginal vein. The seedling foliage is also different. (The evolution of the 

 Eucalypts in relation to the cotyledons and seedlings, by Cuthbert Hall, M.D., 

 Proc. Linn. Soc. N.S.W., vol. xxxix, Plate 46). E. dealbata will sometimes grow in 

 Mallee form, but in such cases the bark remains fairly thick, and the timber soft. 



2. With E. Behriana F.v.M. 



In bark, timber, oil and habit E. pumila much resembles E. Behriana F.v.M., 

 but differs in the flowers, fruits and leaves. 



Leaves of this Eucalyptus were procured and distilled in August, 1907, at the 

 Technological Museum. Messrs. Baker and Smith report on the oil as follows : — 



The yield of oil is large, 617 lb. of leaves with terminal branchlets giving 9 lb. 10 oz. of oil — equal 

 to 1'56 per cent. The oil is very rich in eucalyptol, and both in yield and eucalyptol content this species 

 is one of the best from which to distil Eucalyptus oil for pharmaceutical purposes, and in this respect 

 may be associated with E. Smithii, E. polijhrmlea (frulicelorum) and E. Moni'sii. The oil contains some 



