81 



Following are some notes by Dr. Trabut on experiences with certain Australian 



species in Algiers : — 



E. botryoides Sm. 



Although little distributed, this species presents numerous very different forms in collections, and 

 certainly of hybrid origin; it tends to E. goniocalyx. 



These hybrids of botnjoides are generally very fine trees, worthy of the attention of cultivators. 



The botnjoides type shows on the contrary a tree of rather slow growth and medium dimensions. 



E. goniocalyx and E. botryoides are species not very closely related. (J.H.M.) 



E. polyanthemos Hort. 



This species has given me a very ornamental hybrid with its fine foliage and its abundant 

 inflorescence; but no capsule has developed; it remains sterile. There is a fine specimen in the gardens 

 of the hospital. 



The study of the pollen of these hybrids of Eucalyptus may sometimes permit us to establish the 

 hybrid nature of a form observed, but the sterility in this case appears to be exceptional. 



E. punctata DC. 



To the group of the Red Gums one may attach also E. punctata DC, a very fine tree, which recalls 

 E. Traluti, I only know one group of it, which is not absolutely typical, at M. Bertrand's at Sidi-Ale.- 

 The seeds were received under the name of E. resinifera. 



E. resinifera Sm. 

 E. resinifera Sm. is very rare; it is found in the Cordier collection, but it does not propagate itself. 



E. robusta Sm. 



In the sowings of E. robusta of seeds coming from the Cordier collection I have been able to observe 

 some very interesting hybrid forms. In the plantings of Dr. Bourlier at La Reghaia, one of these forms 

 turned out to be E. Kirtoniana F.v.M., which is very probably a hybrid between E. robusta and E. rostrata, 

 according to Maiden, the Australian Eucalyptologist. E. Kirtoniana has not been sown by Cordier. but 

 it is shown in the sowings of E. robusta, which tends to show that in Australia there are species of 

 Eucalyptus of hybrid origin. 



E. Kirtoniana F.v.M. is doubtless a good species. See p. 200, Part XXIX 

 of the present work. 



D 



