552 



Stamens usually very unequal, the outer ones often \ inch long or moro, the innpt inuoli jhortor.- 

 /:. leucoxylan. 



Perfect stamens shorter. 

 E. gracilis. 



Inner ones shorter. — 

 E. microcorys. 



Mueller (" Eucalyptographia ") says — 



/•.'. cornuta, " Stamens of la i -•■ Hov crs to l\ inch long." 

 A', microtheca, " Sti us very sliort." 



Some species have filaments sliort and stiff, like some brushes. Representative 

 examples are :— 



E. bicolor. E. oligantha. 



E. Behricma. E. populifolia. 



E. Ewartiana (also sparse). E. transcontinentalis. 



Perhaps Bentham's observation (B.F1. iii, 255) under E. ptychoca/rpa of " filaments 

 rigid " refers to a similar state. The filaments of E. terminalis are not very long. In 

 certain of the Eudesmiese, as specially explained under E. erythrocorys in Part XLV, 

 p. 135. the lengths of the filaments vary a good deal, to bring the anthers up io 

 approximately the same level. This is analogous to variation in lengths of peduncles 

 and pedicels in a Corymb. 



E. macrocarpa. For a note in regard to the " arrangement of the filaments 

 in the mass," see Maiden in Journ. Roij. Hoc. N.S.W., li, 452-3. The "square-cut'' 

 or " straight-sided " appearances obviously depend on the lengths, or apparent lengths, 

 of the filaments, which again depend on the shape of the stamina] rings. 



Width. 



The filament is usually filiform or hair-like. It is rarely that a writer refers to 

 the width, as it is usually not measurable, except by instruments of precision. 



E. iitricrocaijia.—ConimoEly 4 cm. long, flatfish, 2 nun. broad at the base and 

 gradually tapering into a hair-like process at the "point of attachment to the 

 anther. (Flowers grown in Botanic Gardens, Sydney, October, 1919). 



E. Id rn pi cii i.- The filaments may be described as flatfish at the base, and tapering 

 very gradually almost as in E. macroca/rpa. They are incurved or slightly 

 inflected. 



Glands (?). 



I believe .Mueller (" Eucalyptographia ") was the first to draw attention to this 

 character when, under E. leucoxylon, he wrote " Filaments .... rather thick 

 and somewhat glandular." Under that species at Part XII, p. 90, I wrote — " Note 

 the glands on the filaments (see figs, le, ]/, p. 56.) Mueller first drew attention to this 



