76 



DESCRIPTION. 



CCXCV. xi Cordieri Trabut. 



Reputed parents, E. globulus Labill., and E. goniocalyx, F.v.M. 



From 1873 M. Ccrdier observed in the sowings of E. goniocalyx F.v.M. specimens having a good deal 

 of resemblance to E. globulus, and he made a figure in a fine Atlas which he bequeathed to the Botanical 

 Laboratory of the School of Agriculture, a form that he called a E. goniocalyx hybrid of E. globulus. 



There still exists in the Cordier collection' a certain number of these specimens, intermediate 

 between E. goniocalyx and E. globulus. I propose to call them E. Cordieri, in memory of the first botanist 

 who recognised the important role played by hybridisation in the multiplication of forms of Eucalyptus 

 obtained in X cultures. 



E. Cordieri Trab. (E. goniocalyx x globulus) (Cordier, Atlas Eucalypt, 1873, pi. 28 (Plate XV)). 



A tall tree, with the appearance of E. globulus. Young leaves opposite, rounded, cordate, with 

 the same odour as E. globulus; adult leaves thick, lanceolate, falciform, very like those of E. globulus; 

 umbels axillary, from 3-7 flowers ; peduncles compressed, short ; flowers sessile, bud pruinose, calyx-tube 

 angular, operculum slightly exceeding the calyx-tube, hemispherical, mucronate ; fruit very variable, 

 often with an angle of 8-10 mm. in diameter, with 3-4 triangular valves, which are not erect, sometimes 

 included, most often at the level of the edge of the calyx-tube. 



It seems that this form appeared in the sowings of seeds coming from Australia, which leads me 

 to think that Australian botanists did not appear quite certain as to the limits of E. goniocalyx, and if a 

 close observation of this species had led them to separate, notably E. Cambagei Deane and Maiden (E. 

 elaeophora F.v.M.), E. paludosa R.T.B., and from another side to separate from E. globulus E. Maideni 

 F.v.M., they would find themselves confronted with forms arising from hybridisation. It even seems 

 that E. goniocalyx is joined to E. botryoides by other intermediate forms. 



E. elaeophora F.v.M. (E. Cambagei Deane and Maiden) is a species quite distinct from E. goniocalyx. 

 See p. 275, Part XIX of the present work. E. paludosa R.T.B., is a synonym of E. ovata Labill. See p. 134, 

 Part XXVII. E. goniocalyx and E. botryoides are widely different. The former is a Gum with pale- 

 coloured timber; the latter is a rough-barked species with red timber. (This last paragraph "by 

 J. H. Maiden.) 



DESCRIPTION. 



CCXCV i. x E. gomphocornuta Trabut. 



Reputed parents, E. gomphocephala DC, and E. cornuta Labill. 



Several other hybrid Eucalypts have made their appearance in Algerian cultivations, and are 

 worthy of note. 



One of the most interesting is E. gomphocornuta Trabut. This Eucalypt has been noticed in a 

 plantation of E. gomphocephala D.G., made by Dr. Bourlier at La Reghaia, the seeds coming from the 

 Cordier collection. 



Eucalyptus goniiJiocornuta Trab. Rev. Hort. Alg., 1904. See August, 1901, p. 239, and 1903, p. 326. 



A tree of good pyramidal shape, with abundant dark green foliage ; trunk with a persistent bark, 

 finely fissured ; leaves unequal, oval, pointed, bent, pendent, shining, coriaceous, dark green, with long 

 petioles, attaining to a length of 20 cm. by 22 mm. broad, the angle of divergence of the secondary nerves 



