168 



2. With E. deeurva F.v.M. 



" Bentham places this species with E. deeurva, from which it is distinguished by thicker somewhat 

 angular branches, more rigid, longer and stronger leaves, potiolate, never opposite, but broader, paler 

 green, less falcate and less inequilateral, veins more conspicuous, the network of the veins, however, less 

 visible, umbels more richly flower' ng, peduncles and pedicels remarkably thicker, operculum more 

 depressed, calyx-tube somewhat wrinkled and almost truncate at the base, anthers neither dorsifixed nor 

 oblong-ovate, nor dehiscing longitudinally through a double orifice, perhaps also in the character of the 

 fruits; it hardly belongs therefore to the Parallelantherae " (Original description). 



The references to E. deeurva may be better understood by reference to Part 

 XVI, p. 186, and also to the account of E. deeurva, pp. 191 et seq. If, however, the 

 figures of 2?. deeurva, Plate 70, be turned to, it will be seen that the two species are 

 separated by the shape and sculpture of the buds. One cannot push the comparison 

 very far, in view of the paucity of the material oiE. Cooperiana. 



3. With E. eladoealyx F.v.M. 



" E. Cooperiana agrees somewhat with E. corynocalyx (eladoealyx) , although this also belongs to the 

 Parallelantherae, as I have already shown in ' Eucalyptographia,' Decade 2. The branches of this, how- 

 ever, are thinner and not very much angled; the leaves are narrowei and more plainly curved, somewhat 

 paler on the underside, of a thinner consistency; the peripheral vein is closer to the margin of the leaf; 

 the peduncles are thinner, scarcely compressed, not properly axillary; the flowers are often fewer in the 

 umbels, more thinly pedicellate; the calyx is thinner, not conspicuously plicate under the flower, not 

 suddenly obtuse at the base and not turgid, anthers oblong-oval, with parallel slits, fruits to be compared 

 after those of E. Cooperiana have been found. From these marks there is shown the close affinity to E. 

 deeurva and E. corynocalyx, although the pedicels are longer and more slender, the calyces are thicker 

 towards the middle, the operculum with a slightly longer point, the anthers not fixed at the base, but versa- 

 tile, fruit thicker and not striate." (Original description.) 



Always bearing in mind that the authentic material of E. Cooperiana is very 

 imperfect, it would appear that E. eladoealyx is distinct from E. Cooperiana. The 

 anthers place the latter in a different section; they are somewhat like those of E . torquaia. 

 The buds of the two species seem to possess some differences; the fruits of E. Cooper- 

 iana must be searched for. 



4. With E. concolor Schauer. 



" E. concolor is closely approximate to E. Cooperiana on account of its strong angular branches, com- 

 pressed peduncles, form and structure of the leaves and anthers ; it differs, however, in having the peripheral 

 very close to the margin of the leaf, in the almost complete absence of pedicels, the operculum almost the 

 same or a little longer than the semi-ovate hemi-ellipsoid or conical calyx-tube. The style, however, is 

 longer and finally the fruits have to be compared. E. concolor, as Maxwell shows, extends to Cape Arid." 

 (Original description.) 



The figures of E. concolor on Plate 63, Part XIV, may be referred to. 



