79 



DESCRIPTION. 



CCXCIX. x E. Trabuti Vilmorin. 



Reputed parents, E. rostrata Schlecht., and E. botryoides Sm. 



Synonym. — E. Rameliana Trabut non E.v.M., in Revue Horticole de VAlgerie, No. 8, p. 237 

 (August, 1901); Bulletin Agricole de VAlgerie et de la Tunisie, p. 326 (15th July, 1901); Maiden in Proc. 

 Linn. Soc. N.S.W., xxviii, p. 903 (1903). 



During my stay at the Nuestapha Hospital, I have, since 1874, sown there several Eucalypts obtained 

 from the Trottier collections. Two species were planted together in the garden, E. rostrata and 

 E. botryoides. 



In 1886 an E. botryoides of this sowing seemed to me worth reproducing, and I had some seeds 

 collected, as also in 1887, 1888, 1889. Of plants obtained from these seeds, a small number were 

 E. botryoides. the others were very different, and I was unable to attribute them to a species already 

 introduced. 



In 1891, after careful study, I was convinced that these Eucalypts, from a sowing of E. botryoides, 

 were hybrids, botryoides x rostrata, and I gave a description of them at the Marseilles meeting of the French 

 Association for the Advancement of Science. The new Eucalypt was dedicated to Ramel, and described 

 under the name of E. Rameliana, hybrid botryoides x rostrata. 



This name, which had for its object the honouring of the apostle of Eucalyptus in Algiers, could 

 not be maintained ; von Mueller had already given Ramel's name to a form of E. pyriformis Turcz. 

 H. de Vilmorin called my hybrid E. Trabuti, and it is under this name that it figures in his catalogue of seeds 

 of trees. Here is the description : — 



E. Trabuti H. de Vilmorin in Cat. E. Rameliana Trab. (non Mueller) Ass. Franc. Adv. Science, 

 1891. E. botryoides x rostrata. 



A tree of rapid growth, branching very early, and of a regular pyramidal shape ; the trunk often 

 with a cracked bark ; foliage dense, dull green ; leaves coriaceous, oval, lanceolate, slightly falcate, very 

 pointed, finely nerved, the two pages distinct, the upper more shiny and with about 70 stomata to the 

 square mm., the lower paler and 150 stomata to the square mm. (in E : botryoides the leaves have only 

 stomata on the lower surface, 200 to the square mm. ; in E. rostrata these openings are equally spread 

 on the two pages). These leaves are from 15 to 22 cm. long, and 30-45 mm. broad; the angle of 

 divergence of the secondary veins is 55 degrees to 60 degrees. It is a mean between the angle of 

 divergence of E. botryoides, from 65 degrees to 70 degrees, and that of E. rostrata, which is from 45 degrees 

 to 50 degrees. The inflorescence is in axillary umbels, borne on a slightly flattened peduncle under the 

 flowers, which have short pedicels equal to the calyx-tube ; their number varies from seven to twelve. 

 The bud has a conical operculum, generally rostrate. The fruit is of about the size of a pea, and is 

 semi-oval, the calyx-tube sometimes extending beyond the capsule, which opens when mature by means 

 of valves whose extremities are sphacelate and deciduous. 



Because of its vigour, the regularity of its shape, and the density of its foliage, this Eucalypt merits 

 attention. The wood of E. Trabuti is red ; I have had furniture made of it which had all the appearance 

 of mahogany. 



In order to verify the rapidity of growth of this hybrid, I have had a row of E. rostrata and 

 E. botryoides planted, alternating with E. Trabuti. After ten years all the hybrids had largely dominated 

 the parents, which were often atrophied between two hybrid trees. 



