206 JOURNAL OF THE EOYAL HOKTICULTURAL SOCIETY. 



B. Dregei is remarkable for its late flowering, and by being at first entirely 

 male, for its long continuance, female flowers being subsequently pro- 

 duced. — G. H. 



Begronias, Tuberous, On the Forcing- of. By J. Rudolph (Rev. 

 Hort. p. 45 ; January 1901).— C. T. D. 



Begonia Tubers and Eelworms. By W. G. S. (Gard. Chron. 

 p. 47; 19/1/1901). — A description of diseased tubers and the cause, 

 with suggested remedies. — G. S. S. 



Begonias, Winter-flowering". ByE.B. B. {Gartenflora, i^. 118 ; 

 1/3/1901). — Cultural directions. Crosses of varieties with the Begonia 

 from the island of Socotra had yielded very good results. It crosses 

 easily, and is so vigorous in its nature that its characteristics, as a rule, 

 largely predominate in the seedlings resulting from the cross. But such 

 seedlings are sterile, and the variety has to be maintained by cuttings. 

 B. ' Gloire de Lorraine ' had been obtained by Lemoine by a cross of 

 B. socotrana with B. Dregei, a South African variety of no floral im- 

 portance. — C. E. S. 



Berried Plants. By G. Stanton {Gard. Mag. 2465, p. 48; 

 26/1/1901). — An exhaustive, descriptive list of all hardy trees, shrubs, 

 and plants that bear attractive berries. — W. G. 



Birch Trees, Disease of, in Epping Forest and elsewhere. 



By Robert Paulson {Essex Naturalist, vol. xi. p. 273, with 8 figs. ; July 

 1900). — After describing the disease, which effectually kills the trees, the 

 cause is investigated and attributed to a fungus parasitic on the trunk and 

 branches, called Melanconis Hillo stoma, heretofore considered to be a 

 saprophyte, attacking only dead tissues. The conclusion arrived at is 

 that the Melanconis does occur on living branches, and causes their 

 death, but, as a rule, reaches its perfection on dead branches only ; that 

 the course of the disease is very rapid. — M. C. C. 



Black Currant Mites and Gooseberry Caterpillars. By J. 



Riddell {Gard. Mag. 2466, p. 68 ; 2/ 2/1901).— The writer suggests 

 that the planting of Raspberry in alternate rows with Black Currant 

 bushes serves to attract the insects from the Currants. It is also asserted 

 that the growing of Broad Beans among Gooseberry bushes secures 

 immunity from caterpillars. The subject is worthy of investigation. 



W. G. 



Black Rot, Conidia of {Guignardia Bidicelli). By M. G. Delacroix 

 {Bull. Soc. Myc. de Fr. xvii. Fasc. 2, 1901, p. 133, with fig.).— Conidia 

 resembling Cladosporium found on ripe grapes, developed from a sclerotium, 

 discovered in France, in three localities. — M. C. C. 



Border Plants {Bev. Hort. Beige, January 1901). — M. A. Buysseus 

 recommends the three following : (i.) Chlorophytum elatum, variegatum 

 (syn. Anthericum Williamsi, Phalangium argenteo-lineare) ; (ii.) Calathea 



