ABSTKACTS. 



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their culture, classification, description. Articles are given on the Dahlia 

 industry and the raisers and distributors of Dahlias. Portraits are given 

 of the men who have become prominent as raisers of Dahlias. The 

 number is of special value to lovers and growers of the Dahlia. — W. G. 



Dahlias, How to gTOW. By W. Soutter (Qu. Agr. Journ. ix. 

 pp. 558, 559; December 1901). — This short communication describes the 

 characteristics of a show flower — Pompoms, Cactus Dahlias — with 

 remarks on cultivation, containing nothing of novelty or special interest. 



M. C. C. 



Dahlias, Cactus, for 1902. By H. Kohlmannslelmer (Die Gart. 

 p. 181; 18/1/1902). — If illustrations are right, these new German 

 Cactus Dahlias, such as ' Siihnenprinz ' (rich purple), ' Gartenbaudirector 

 Geitner ' (salmon), would be good Cactus forms. More decorative are 

 ■ Lotte Kohlmannslelmer,' pure white ; ' Hildegard Weimar,' mauve- 

 coloured ; 1 Freund Hesdorffer,' brick-coloured. — G. R. 



* Daisy,' Shasta (L.B. in Amer. Gard. xxiii. pp. 24, 25 ; figs. 5, 6 ; 

 11/1/1902). — A new hardy perennial of great merit, raised by Mr. 

 Luther Burbank, of Santa Rosa, by combining the American, European, 

 and Japanese species allied to Chrysanthemum leucanthemum and 

 selecting the offspring through a series of years. 



The plant is about two feet high, and bears an abundance of pure 

 white flowers, which are four inches across. — C. C. H. 



Darkness, Development of Flowers in. By M. Beulaygue 



(Ann. Agr. p. 881 ; August 1901). 



1. Flowers developed in darkness are generally later in opening than 

 those in light. 



2. The colour is usually less bright ; some are entirely discoloured. 



3. The flowers are usually smaller, but the stems often more developed 

 than in light.— C. H. H. 



Delphiniums, Two Red. By Jules Rudolph (Rev. Hort. p. 70; 

 February 1, 1902). — Delphinium cardinale described as a good scarlet, 

 lax inflorescence, and D. nudicaule, clear scarlet flowers in bunches. Sow 

 the first in April-May in cold frames, in which they are wintered, plant- 

 ing out in March-April. Flowers July-August. The second is sown in 

 March and flowers in July- August ; can also be sown in September, wintered 

 in frames, and planted out in spring ; perennial and nearly hardy, but 

 may be treated as an annual. — C. T. D. 



Dianthuses, Alpine. By G. Reuthe (Gard. Mag. No. 2529, p. 247 ; 

 19/4/1902). — These beautiful rock garden plants are the subject of an able 

 article by a practical grower, who describes the most beautiful and im- 

 portant species, with hints upon their culture. The writer, who has 

 collected the plants in their native homes, speaks of twenty acres of 

 D. alpinus growing in the short Grass, yet we find in England that it is 

 this Alpine gem that causes anxiety to keep in health a tuft a few inches 

 square. Mr. Reuthe could no doubt tell a great deal more than he does 



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