EUCALYPTUS COSMOPHTLLA. 



filaments are bright-yellow, the rim of the fruit is more descending, the valves generally somewhat 

 deeper enclosed an3~outward tumid, and the seeds larger as well as more uniformly broad. E. 

 cosmophylla verges in its affinity also somewhat to E. megacarpa, although that species forms a 

 good-sized tree, has narrower thinner and darker leaves, broader and flat flowerstalks, larger at 

 the base rather less turgid fruits with finally convex emersed summit and very thick valves, 

 larger and also broader sterile seeds. 



This Eucalyptus has but slight claims on the industrial attention of artisans, but for com- 

 pletion's sake it could not welTbe passed in this work, espe'cially'as The flowers, which expand 

 in autumn, ofi'er by their sweet exudations also food for bees at a season, when it is particularly 

 welcome to them. 



The ordinarily dry leaves gave 13^ per cent, of tannin (according to a solitary experiment 

 instituted by Mr. Rummel in my laboratory), equal to nearly 15 per cent, in absolutely dried 

 leaves ; they are therefore richer in tan-principle than even those of E. Leucoxylon, although not 

 to the same vast extent obtainable for tanneries. The medullary rays in the wood of E. cosmophylla 

 are more copious than in most other Eucalyptus-woods (380 per square inch, against 220 in real 

 boxwood, which furnishes the best standard for comparisons of wood-elements) ; the vascular 

 tubes are also more numerous than in many other species (11,000 per square inch, against 165,000 

 in Buxus sempervirens). 



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

 nnexpanded flower ; 3, some stamens in situ ; 4 and 5, front- and back-view of an anther, with portion of the 

 filament ; 6, style and stigma ; 7, longitudinal section of a fruit ; 8, transverse section of three difierent fruits ; 

 9 and 10, sterile and fertile seeds ; 11, embryo in its natural position ; 12, transverse section of an embryo ; 13, 

 embryo with cotyledons unfolded ; all magnified, but to various extent. 



