ABSTRACTS. 



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Geographical Distribution, Maps illustrating- (Not. Konig. Bot. 

 Berlin, vol. iii. 1902). — Engler, Pax, and Graebner continue their maps 

 illustrating the geographical distribution of plants. Two maps are given, 

 one showing the areas occupied by the genus Populus, the others those of 

 the genus Magnolia. — H. M. W. 



Germination Apparatus for maintaining constant humidity 



(Beih. Bot. Cent. bd. xii. ht. 2, pp. 289-292).— Dr. A. Y. Grevillius 

 describes and figures a new apparatus for the above purpose. It is 

 designed by himself, and was made after Herr Schwanen's model by the 

 firm of Max Kaehler & Martini, Berlin. — G. F. S.-E. 



Gladioli, Culture of. By the Rev. H. H. D'ombrain (Garden, 

 No. 1,585, p. 222; 5/4/1902). — A most valuable article, dealing 

 thoroughly with the culture of this beautiful and interesting flower. 



E. T. C. 



Gladiolus Mackinderi. By Sir J. D. Hooker (Bot. Mag. tab. 7860). 

 — Nat. ord. Iridcce, tribe Ixiece. Native of British East Africa. Flowers 

 H inch across ; wholly scarlet. — G. H. 



Gomphocarpus textilis. By Ed. Andre (Ami. Soc. He. p. 86 ; 

 April 1902). — This annual Asclepiad, native of Arabia, is naturalised on 

 the Mediterranean shores of France. It is ornamental in French gardens, 

 cultivated as a half-hardy annual, and producing abundance of umbels 

 of rose-coloured flowers in summer. It is closely allied to G. fruticosus, 

 which is grown as a half-hardy annual at Kew. — C. W. D. 



Grafting, The Evils of. (Garden, No. 1,604, p. 105 ; 16/8/1902.) 

 — An article on the propagation of Conifers, of great importance to all 

 interested in trees and shrubs. Many mistakes have been made in pro- 

 pagating the Coniferce, and, to make matters still worse, the old erroneous 

 doctrines are still preached and practised. A list of Conifers is given, 

 with the best method of propagating in each case. — E. T. C. 



Grafting Herbaceous Plants. By W. S. Palmer (U.S.A. Hort. 

 Soc. Bep. Michigan, 1902, pp. 110-112). — Cleft and veneer grafts were 

 used. Tomatos grew more vigorously on Potato than on Tomato stock ; 

 weak varieties of Geranium showed marked improvement when grafted 

 on stronger varieties ; Achyranthes grew rapidly on Coleus. Variegation 

 was transmitted to a very limited extent from stock to scion in the Coleus 

 and Achyranthes. In grafting a monocotyledon on a dicotyledon cellular 

 union was obtained between Zebrina pendula and Coleus. 



It was found that grafting wax injured the tender tissues, but plaster 

 of Paris was used with good effect. — F. J. C. 



Grafting; how, when, and why. By Professor Taft (U.S.A. 

 Hort. Soc. Bej). Michigan, 1902, pp. 183-187 ; one plate).— A resume of 

 the methods of grafting, with their relative advantages. Contains nothing 

 new. — F. J. C. 



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