573 



The fruits of the Eucalypts are always free, that is to say, independent of each other, in a single 

 inflorescence. Only one known species is an exception under this heading, by the cohesion of its fruits 

 into a single mass. This is E. Lehmanni. 



The configuration of the fruits and the relation between the length of the capsule and the calyx-tube 

 show characters less vague than the size, which is moreover sufficiently variable in a single species. In 

 fixing on these modifications easy to grasp, we can establish the following groups : — ■ 



(a) Capsule more or less exsert, that is to say, notably exceeding the calyx-tube : — 



E. Lehmanni. E. tereticornis. 



E. cornuta. E. insignis. 



E. amplifolia. E. rostrata (p. 19). 

 E. macrorrhyncha. 



This is equivalent to his " First Section " in his classification at p. 20. 



(6) Capsule sunk more or less deeply; its straightened valves hardly attaining, or not attaining at 

 all, the margin of the calyx-tube : — 



E. Preissiana. E. botryoides. 



E. robusta. E. calophyUa, and many others (p. 19). 



E. goniocalyx. 



This forms the basis of his " Second Section " in classification, p. 20. 



(r) Capsule nearly of the same length as the calyx-tube. It can then open and project the point of 

 the valves a little above the contour of the calyx-tube : — 



E. Muelleri. E. resinifera. 



E. viminalis. 



Either remaining flat on the upper side, its valves not becoming erect, and turning aside at their 

 base to let the seeds fall out : — 



E. globulus. E. diversifolia (p. 19). 



E. megaearpa. 



(d) As to the exterior shape of the fruit, it is characteristic in some species or groups of species; 

 thus it is obconic, that is to say, with a reversed cone, in — 



E. Preissiana. E. coccifera. 



E. globvlxis. E. gomphocephala, &c. 



In a large number of species the fruit is pear-shaped, ovoid, hemispherical, or almost spherical, 

 more or less widely open at its apex, all peculiarities which will be shown in the descriptive part of this 

 memoir. Let us now show how the fruits may be nearly spherical by the contraction of their opening — ■ 



E. marginata. E. doratoxylon. 



E. diversicolor. 



Lastly other Eucalypts are distinguished by fruits more or less urn-shaped, short or elongated, 



as one sees in — 



E. urnigera. E. corynocalyx, and especially 



E. calophyUa, whose large fruit represents a very bulging urn (p. 19). 



(p. 20.) As we have noted by reading the preceding pages, the characters that may be considered 

 specific in Eucalypts cross each other to such an extent in the series of species, that it does not seem 

 possible to distribute the latter in truly natural groups, analogous, for example, with what is called 

 sub-cenera in other families of plants. Still, in order to facilitate as much as possible the separation of 

 the species described in this memoir, I have divided them into sections based on their characters 

 which are sufficiently apparent so as 'to be easily noted by the reader, although the sections are purely 

 artificial. 



