NOTES AND ABSTRACTS. 



131 



Lorraine. Very free growth, a mass of bright rosy flowers, equally 

 good in sun or shade. Unequalled for pot culture. — F. A. W. 



Blakea gracilis. By S. A. Skau (Bot. Mag. tab. 8099).— Costa 

 Rica. Nat. ord. Mclastomaceae ; tribe Blakeae. A glabrous, much- 

 branched shrub, 9-13 feet high. Leaves opposite, subcoriaceous, 

 2^-4 inches long, 1£-H inch broad; flowers H inch across; petals G, 

 whitish rose ; stamens 12. — G. H. 



Blue Glass, Influence of, on Vegetation (Bev. Hort. March 1G, 

 1906, p. 128).— Mr. V. A. Clark, at the Horticultural Society, New Orleans, 

 reported that transplanted leafy seedlings are greatly benefited by the use 

 of blue glass on the frames, transpiration being thus checked. — C. T. D. 



Boronia fastigiata. By T. A. Sprague (Bot. Mag. tab. 8089).— 

 Western Australia. Nat. ord. Rutaceae ; tribe Boronieae. A bush G feet 

 high ; leaves small, obovate ; cymes several-flowered ; flowers ^ inch broad, 

 rose-coloured. — G. H. 



Bulbophyllum Ericssoni. By R. A. Rolfe (Bot. Mag. tab. 8088).— 

 Malay Archipelago. Nat. ord. Orchidaceae ; tribe Epidendreae. An 

 epiphytic herb ; flowers umbellate, large, green, spotted with purple- 

 brown, and red-brown markings ; sepals elongated with curled spurs. 



G. H. 



Cabbage : Club Root. By T. W. Kirk, F.L.S., and A. H. Cockayne 

 (Dep.Agr. N.Z.,Bull. No. 11, 3 plates ; November 1905). — This disease to 

 cabbages, turnips, and cauliflowers appears to be considerably on the 

 increase in many districts of New Zealand. After a slight description 

 of the disease, which is much assisted by the plates, the report is 

 concerned with preventive measures, which are numerous and explicit. 

 1. All diseased material, wherever practicable, should be burnt, and 

 should not be fed to pigs, as ground has become badly infected through 

 pig manure. 2. Careful rotation of crops is necessary for the suppression 

 of the disease. 3. Neglect of keeping the ground clear of cruciferous 

 weeds contributes to the spread of club root. 4. Club root is rarely 

 found on land rich in lime ; application of heavy dressings, of lime, four 

 to seven tons per acre, is the most effective preventive. 5. Gas-lime has 

 little or no effect on club root, and acid manures, such as superphosphate 

 of lime, encourage it. — M. C. C. 



Cacao Disease in Ceylon. By Herbert Wright (Jour. Imp. Dep. 

 Agr. W.I. vol. vi. No. 3 ; 1905). — The canker disease of cacao, which has 

 proved a very serious menace to cacao cultivation in Ceylon, is met with 

 in Trinidad, Grenada, and Dominica. This article shows that the fungus 

 causing this disease can be successfully kept in check by rational 

 agricultural methods. These are briefly as follows : — 



1. Letting in sunlight. 



2. Excision and burning of diseased tissues in the stem. 



3. Frequent collecting and burning of diseased fruits, or burying with 

 lime. 



