TIIJ-: ILLUSTRATION IIORTICOLE. 



around the tree where 

 ves in the young plants 

 as in the adult. 

 iade. — The formation 

 iade of trees is a point 

 bought on the part of 

 ;il gardens. In the south 

 tvailable ; and elsewhere 

 •roll's are recommended. 



db'Hlm, but this plant 



i Mr. Ja-ger gives the 

 ion. Poa nemoralis, he 

 the leaves of Brachypo- 

 nd it does not flourish 

 i proposes , amongst the 



I fine-leaved grasses : Aira flexuosa, Festuca ovina, glauca, 

 duriuscida and rubra, especially the two last, because they 

 succeed well even in Pine woods. Amongst grasses with 

 I broader foliage, Melica nutans, Arrhenatherum elatius and 

 I Poa sudetica succeed tolerably well, particularly if a little 

 | of Luzula albida is added. 



These suggestions are very well so far , but one cannot 

 I easily purchase many of the plants mentioned, hence the 

 | advice however good will remain unavailable. 



— Disease of Oeange teees in Algeria. — A real 

 plague is now devastating the Orange trees of Blidah, Alge- 

 ria. In addition to the Kermes and a large hymenopterous 

 insect the growers have hitherto had to contend against, 

 a disease has within the last two years been rapidly invad- 

 ing the plantations. It attacks the roots and causes them 

 to perish in a fortnight. They change black and become 

 rotten and peel, and all around the soil decomposes. Two 

 kinds of vermin have been found on the diseased roots , a 

 myriapod and an undetermined black insect. The only remedy 

 hitherto employed with any degree of success is laying the 

 roots bare and applying from twenty to thirty pounds of 

 dust coal or powdered charcoal to each tree. 



— Chbysanthemitms of the Temple Gaedens. — These 

 attractive Autumn flowers have long formed an established 

 institution of the Temple Gardens in London, and this season 

 the display is again very fine. The weather has been emin- 

 ently favourable for the development of Chrysanthemums 

 out-of-doors this Autumn and in many places they are very 

 good. A few pages forward we give a brief summary of the 

 Royal Horticultural Society's Chrysanthemum and Fruit 

 Show. 



E. A. & W. B. H. 



OANNA MADAME CHRETIEN. 



1 uptight habit, like the hybrid 

 arect, acutely acuminate, glau- 

 ?e, supported on triquetrous, 

 vers bright orange yellow; pe- 

 :e at the top with a long mucro 



in the sinus, fn of this variety. 



A very free flowering plant, raised from seed by M r 

 Crozy, nurseryman at Lyons , and destined to occupy a pro- 

 minent place amongst the ornamental plants of this genus 

 for summer bedding or forcing. J. Ncetzli. 



ALOCASIA HYBRIDA GAULAINII. 



Numerous hybrid or cross varieties, the issue of Alocasia 

 metallica and Loicii are already known. A. Veitchii still 

 ranks among the best, unless the numerous seedlings we 

 saw growing at Messrs. Veitch's under the care of M r Seden 

 have since produced something more striking. 



But none ot the varieties we have seen approach in vigour 

 and nobleness of aspect that raised from seed by M' Gaulain, 

 foreman of the houses at la Tete d'Or, Lyons, and bearing 

 bis name. At the present there is only one plant of it in 

 existence, which, moreover, was rather badly injured by 

 the dreadful hail-storm that broke over Lyons in June last 

 and shattered glass to the value of £, 560 in the municipal 



garden; 



Let 



hope that this beautiful plant, of which 

 we "give a description below, may yet survive to be pro- 

 pagated and dispersed as it deserves. 



Avery vigorous, semi-caulescent plant, dark olive green 

 in the upper part of the stem , as well as the stout petioles , 

 which support a heart-shaped peltate mucronate blade with 

 a deep basilar sinus ; upper surface of the leaf of a deep 

 green with the prominent nerves and veins bounded by silvery 

 bands , lower surface deep bright violet, with equally prom- 

 inent, nearly black nerves. Growth excellent, habit elegant, 

 and altogether a fine acquisition. 



