1158 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



essentially starninate and pistillate. The practical results are summed 

 up as follows : — 



" (1) The self-sterility which is known to exist among many varieties 

 of cultivated Grapes is frequently, if not always, due to a lack of potency 

 in the pollen. 



" (2) This lack of potency is indicated in the pollen grains by a shape 

 which is quite different from that of potent pollen. 



" (3) It is also shown in the arrangement of the pollen, either dry or 

 in liquid media. 



" (4) Certain varieties of Grapes bear pollen in which both the potent 

 and impotent forms are mixed." 



The details of this important paper will be looked for with much 

 interest. — C. C. H. 



Grapes. By A. Dickens (U.S.A. Exp. Stn. Kansas, Bull. 110, 

 5/1902 ; 8 figs.). — Gives an account of Grape cultivation outdoors, illus- 

 trates various methods of training, lists varieties uninjured, &c, by great 

 frost of 1899, and describes a large number of varieties. — F. J. C. 



Grapes, Keeping when cut. By Francis Charmeaux (Le Jard. 

 Nov. 5, 1902, p. 331). — A method is described, with diagrams, by which it 

 is said that cut Grapes may be kept for nearly a year as fresh as if just 

 gathered.— C. W. D. 



Gums, Blue, as Forest Trees. By C. H. McNaughton {Agr. Jour. 

 Cape G. H. vol. xxi. No. 6, 1902, pp. 567-588). — This intensely interest- 

 ing and valuable Report deals with the introduction of the Blue Gum-tree 

 (Eucalyptus Globulus, Labill.) into the locality south of the Outeniqua 

 range of mountains in the Midland Conservancy, C.C. In his summary 

 the author states there can be little doubt that the introduction of the 

 Blue Gum has been eminently satisfactory, and that it is a species which 

 has proved itself as thoroughly satisfied with the factors of locality. 

 There also can be no doubt that it is one of the most generally useful 

 and valuable exotics yet introduced, and that while other Eucalypts &c^ 

 may be as profitably grown for definite purposes, the Eucalyptus Globulus 

 will prove the most advantageous for the small grower to cultivate, and 

 that no farm situated in a locality suitable to the species should be with- 

 out its few acres of plantation, which cannot fail to pay over and over 

 again its cost of establishment, whether by a yield of fuel or timber. Its 

 introduction should be as widely recommended as possible. — B. N. 



Harpalium (Helianthus) rigidum. By J. Aymard (Ann. Soc. 

 Hd. May 1902, p. 98). — A variety is described which does not run at the 

 root. It is said also to have other improved characters. — C. W. D. 



Hemeroeallis or Day Lilies. By G. B. Mallett (Garden, No. 1626, 

 p. 38; 17/1/1903; No. 1,627, p. 52; 24/1/1903).— Many of the taller 

 species are admirable plants. The smaller species, a few of the new 

 hybrids, and the double-flowered varieties of H. fulva make excellent 

 border plants of limited growth, while H. minor is worth a place in the 

 rockery. Full cultural remarks with descriptions of the best species. 



E. T. C. 



