974 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Treats of the ravages of the larva of Crambiis caliginosellus on young 

 Tobacco plants. In one field about 22,000 plants had been destroyed by 

 it. Experhnents are bemg made to check its increase and mitigate its 

 injuries. Temporarily it is advised not to plant Tobacco upon grass, 

 timothy, or clover soil. — 3/. C. C. 



Togro Rubber {Not. Konig. Bot. Berlin, No. 27, p. 134, Oct. 1901).— 

 Notes by Gruner on certain caoutchouc-yielding Lianas, Kickxia, &c., 

 growing in the Togo region, near Dahomey, West Coast of Africa. 



H. M. W. 



Tortrix, The Plum-tree Boring* {Sesamia Wceberana, Autor). 

 Anon. {Jour. Bd. Ayric. vol. viii. No. 2, pp. 165-167, with illustrations). — 

 The treatment suggested for this common bark-feeding moth is as follows : 

 " Little can be done to prevent this pest, but probably smearing cart- 

 grease round the trunk, or, better still, a mixture of grease and paraffin, 

 from the ground some way upwards, during the middle of May would 

 prevent egg-laying, another application being made in September when 

 the season brood are egg-laying. 



" When once under the bark little can be done. The openings of the 

 tunnels may be found on clearing away the * frass,' and a wire inserted 

 up the cavity, or a knife forced in, so as to kill the larvs during the 

 winter. Where only a few trees are attacked this is perhaps the best 

 mode of treatment ; on a large scale, smearing the diseased spots with 

 grease and strong paraffin and rubbing it well in after the ' frass ' has 

 been brushed off might be tried with possible benefit." — B. N. 



Tree-planting- on Rural School Grounds. By Wm. L. Hall 

 {U.S.A. Dept. Agr. Bull. 131; 1901; illustrated).— A bulletin dealing 

 with the present condition and needs of rural school grounds in the States, 

 and indicating methods for their improvement, chiefly in the direction of 

 more tree-planting on judicious lines. 



The kind and character of trees to plant, the time and manner of 

 planting, after-care and management, and studies for the teacher and 

 school, are among the contents. — C. H. C. 



Trichopilia tortilis, Lindl. (Cogniaux in Diet. Icon. Orch., Trie., 

 pi. 6; 11/1901). — Introduced from Mexico and Guatemala in 1835. 

 Sepals and petals twisted, purple-brown, margined yellow ; lip large, 

 white, spotted with purple-brown at the base. — C. C. H. 



Trichocentrum albo-purpureum, Lind. and Rchb. f. (L. Linden in 

 Lind. XYi. pi. 748 ; 15/9/1901). — Introduced from Brazil by Jean Linden 

 in 1864. Sepals and petals yellow without, brown within ; lip white, 

 with two large purple areas at base, and lined with purple towards apex. 



C. C. H. 



Trillium. By A. B. Rendle {Journ. Bot. 466, p. 321 ; 10/1901).— 



Notes, chiefly on the specimens in the British Museum Herbarium, with 

 descriptions of two new species^ T. Bugelii, collected in North Carolina in 

 1841, and T. affine, from Georgia. — G. S. B. ■ . 



