480 EVOLUTION OF THE EUCALYPTS, 



E. Smithii^ E paludosa, E. lactea, E. melliodora, E. sideroxylon 

 var. pallens, and E. acervula. 



(c^). Cotyledons very small, transversely oblong or triangular, 

 emargination slight or practically absent. Primary leaves gener- 

 ally smooth and petiolate. Where the petiole is so small, it is 

 sometimes almost impossible to know whether to put some of 

 these in this group or in i.(c). Comprised in this group are E. 

 Macarthur\ E. ruhida, E. pidverulenta, E. Morrisii, E. macu- 

 losa, E. odoraia, E. Behriana, E. dealbata, E. ovalifolia, E. 

 sp.nov., (R. T. Baker), E. Woollsiana, E. conica, E. intertexta, 

 E. Fletcher i, E. nova-anylica, E. viridis, E. affinis, E. camphor a, 

 E. aggregata, E. rostrata, E. acaciceformis, E. Rodwayi, E. tereti- 

 cornis var. linearis, E. tereticornis, E. Parramattensis, E. Bosisto- 

 ana, and E. folyhractea. 



(c^). Cotyledons larger than in ii.(c^), more deeply emarginate, 

 lobes obovate-oblong, obtuse, divergent. In many, the primary 

 leaves are sessile and glaucous. It will be seen that this group 

 shades olf from (c^), just as (c") may be taken to shade off from 

 (c^) in the other direction. Comprised in it are E. eudesmioides, 

 E. gomphocephala, E. Lehmanni, E. cosmophylla, E. corynocalyx, 

 E. hemilampra, E. eUeophora, E. goniocalyx, E. urnigera, E. 

 unialata, E. Maideni, E. glohnhis, and E. sp.nov.,(R. T. Baker). 



{d). Cotyledons deeply bifid, the emargination being carried to 

 an extreme degree; hence they may be termed Y-shaped. The 

 lobes or limbs of the Y are finally so reduced as to be merely 

 linear. The primary leaves are generally opposite, and linear or 

 linear-lanceolate. This comprises E. comnta, E. polyanthema, E. 

 occidentalis, E. salubris, E. leptopoda, E. loxophleha, E. redunca, 

 E. gracilis, E. pendula, E. calycogona, E. uncinata, E. cneori- 

 folia, E. oleosa, E. salmonophloia, and E. squamosa. 



Description of Eucalyptus Seedlings. 

 i. Cotyledons entire. 

 {a.) Cotyledons large to medium, mostly reniform ; primary 

 leaves generally with stellate hairs, frequently peltate. 



E.calophylla R.Br. (Plate xxxviii., fig. 1).— My results agree 

 with Lubbock's. Note should be made of the large reniform- 



