EUPHORBIAOE/E. 



145 



Tke petals disappear in Caletia (fig. 236-239), the type of a parti- 

 cular sub-series of wMch. the genera, all Australian, have the ericoid 

 foliage and narrow cotyledons of For anther a ^ but the petaloid calyx is 

 constructed on the repeated ternary type, the same as the androceum 



OttUtia mierantheoirhs. 



Fig. 237. Male flower (4). 



Fig. 236. Floriferous branch. 



Fig. 239. Female flower, 

 longitudinal section. 



■whose divisions are superposed to the sepals. Micrantheum^ closely 

 allied, has, with the same aspect, but three stamens superposed to the 

 exterior sepals ; and the lobes of the rudimentary gyneeceum are 

 superposed to the interior sepals,^ instead of alternating with them, 

 as in Caletia} Pseudanthus (fig, 240-241 j differs from the preceding 

 genera in having the stamens, instead of encircling a central rudiment 

 of a pistil, inserted on an axile column from which are detached the 

 filaments surmounted by the two separated cells of the anthers ; 

 these are definite or indefinite in number. The latter is always the 



1 Notwithstanding the difference of aspect in number, inserted beneath a central rudiment 



and foliage (and the fact seems to show the 

 slight value of these characters), I must place 

 here the Ohoriceras, Australian shi-ubs, which 

 have quite the male flower of Caletia, with two 

 verticils of dissimilar sepals, and stamens 5-7 



VOL, V. 



of the gynjeoeum, but the opposite leaves, how- 

 ever, are flattened and not ericoid, and the 

 carpels, each tapering in a distinct style, are 

 independent in the fruit for nearly half of 

 their height. 



V 



