EUCALYPTUS BOTRYOIDES. 



but it resembles that species in its head-like umbels, the broad compressed two-edged flowerstalks 

 and the form as well as structure of the fruit. 



E. resinifera, compared to E. botryoides, shows the leaves rather narrower, the flowerstalks 

 not quite so broad, the calyces provided with distinct stalklets, the lid conical and more elongated, 

 the fruits comparatively shorter with their valves exserted. 



E. saligna is in nature easily enough distinguished by the smoothness of its bark, which 

 secedes in its outer layers successively ; otherwise the differences are slight, consisting in the 

 often somewhat longer lid and in fruits with half exserted valves. 



E. robusta is known as distinct from E. botryoides by the larger size of the flowers and fruits 

 and often also the leaves, by the more extended flowerstalks and particularly by the longer- 

 pointed pale never shining lid, which at the base is broader than the calyx-tube, and by the longer 

 fruits with comparatively narrow and almost permanently coherent valves. 



Explanation of Analytic Details. — 1, upper portion of unexpanded flower, the lid lifted ; 2, longitudinal 

 section of an unexpanded flower ; 3, stamens in situ ; 4 and 5, front- and back-view of an anther with portion of 

 filament; 6, pistil; 7 and 8, longitudinal and transverse section of frait; 9 and 10, sterile and fertile seeds; 11, 

 portion of a leaf; all magnified, but in various degrees. 



