BY CUTHBERT HALL. 479 



E. mdcrorhyncha^ E. nig7'a, E. obliqua, E. Miielleriayia^ E. Afar^s- 

 deni (sp.nov.) J E. fastiyata, and E. regnans. The last-named has 

 a smooth bark, but otherwise the seedling resembles the others. 



(c). Cotyledons small, reniform or. orbicular; leaves smooth and 

 petiolate. E. dumosa, E. popuhfolia, E. quadrangulata, E. poly- 

 bractea, and E. iricrassata. It is probable that these, in under- 

 going reduction in size, have reverted to the primitive type as 

 regards shape. 



ii. Emarginate Cotyledons. 



(a). Cotyledons large, obcordate, cuneate at base, petioles long. 

 E. marginata, E. Todtiana^ E. megacarpa, and E. santali folia. 

 The last-named shades off into the following group. 



{b). Cotyledons medium to small, emargination moderate, slight 

 or even practically absent. Primary leaves smooth, as a rule, 

 and sessile. In most cases, the under sides of the leaves and 

 cotyledons are tinged deep purplish-red. Most of these species 

 contain eucalyptol, and many of them phellandrene and piperi- 

 tone. The anthers are generally reniform. This group comprises 

 E. Plaiichoniana, E. pilularis, E. acmenioides, E. umbra, E. 

 carnea, E Risdoni, E. linearis, E. phlebophylla, E. hcemastoma, 

 E. stricta, E. Bossii, E. striaticalyx, E. piperita, E. amygdalina, 

 E. coccifera, E. vitrea, E. Luehmanniana, E. 07'eades, E. Sieberi- 

 ana, E. Delegatensis, E. campanulata, E. Andrewsi , E. coriacea, 

 E. dives, E. radiata, E. apiculata, E. virgata, E. obtusifiora, E. 

 stellulata, and E. Moorei. 



(c^) Cotyledons smaller, more or less transversely oblong, 

 emargination moderate or very slight; primary leaves generally 

 smooth, petiolate, or sessile, the latter often glaucous. In this 

 group may be placed the Ironbarks and most of the Boxes, with 

 anthers opening by pores; the remainder mostly have parallel 

 anthers. In this group are E. botryoides, E. saligna, E. robusta, 

 E. Baeuerleni, E. propinqua, E. microcorys, E. panicidata, E. 

 crebra, E. sideroxylon, E. melanophloia, E. siderophloia, E. albens, 

 E. hemiphloia, E. 7'esinifera, E. punctata, E. Muelleri, E.fasci- 

 culosa, E. longifolia, E. diversicolor, E. leucoxylon, E sp.nov. 

 (R. T. Baker), E. patentinervis, E. vimiiialis, E. saligna var. 

 pallidivalvis, E. Perriniana, E. Gunnii, E. Stuartiana, E. cinerea, 



