81 



3. With E. Kirtoniana F.v.M. 



E. rudis may be compared with E. Kirtoniana (Part xxix, Plate 123). The 

 two trees differ in the more fibrous bark and the redder timber of E. Kirtoniana. The 

 juvenile leaves of E. Kirtoniana are more elliptical than are those of E. rudis. In 

 the immature fruit of E. Kirtoniana, the style is more uniformly persistent. In E. 

 Kirtoniana buds the commissural line, which is usually present in those of E. rudis, 

 is absent. The greatest similarity is in the fruits. 



4. With E. ovata Labill. 



E. rudis and E. ovata are undoubtedly correlated species. Both are Swamp 

 Gums, and in habit and general appearance, and even in timber, they resemble each 

 other a good deal. They possess considerable similarity in the foliage, both juvenile 

 and adult; compare Plate 113, Part xxvii. Both species vary a good deal in size of 

 buds, and both have marked commissural lines. The larger fruits of E. rudis, e.g., 

 figure 8 of Plate 138, and figure 2c of Plate 139, display considerable resemblance to 

 those of E. ovata var. grandiflora Maiden; see figure 2d of Plate 114. On the other 

 hand the fruits of E. ovata are on the whole more conoid ; those of E. rudis being more 

 urceolate, but in both species both shapes are to be found. E. rudis appears to be 

 closest related to E. ovata of all species, and its affinities are being further inquired 

 into. 



