NOTES AND ABSTEACTS. 



109 



Bull. 93). — These are valuable trees as growing up rapidly and clothing 

 deforested areas, while they all produce large quantities of timber 

 which, though of no particular value, is yet largely used for construc- 

 tive purposes and pulpwood. Eleven species are natives of North 

 America, but to two only is the name of aspen commonly given. 



The notes on the management of the poplars as forest trees are 

 particularly interesting, and that on pulpwood logging gives an insight 

 into this ever-extending operation. — A. D. W. 



Azalea indica, Best Varieties of {Rev. Hort. Beige, p. 32, 



Jan. 15, 1911; and p. 65, Feb. 15, 1911).— The Committee of the 

 Societe I'Avenir Horticole de Gand have organized a referendum 

 among their own members and as many other growers as could be got 

 to answer on the subject of the best varieties of Azalea indica from 

 various points of view. 



The referendum was a success. Over 200 answers were received 

 by the Committee, which analysed give the following results: — 



The ten best varieties in order of merit for : — 



A — Cultivation: ' M. Van der Cruyssen,' ' Niobe,' 'Professor 

 Wolters,' ' Vervaeneana, ' 'Simon Mardner,' 'Deutsche Perle, ' 

 'Pres. 0. de Kerchove,' 'John Llewelyn,' ' Mme. Petrick, ' 'Paul 

 Weber. ' 



B — Sale: *' Vervaeneana, ' 'Mme. Van der Cruyssen,' 'Mme. 

 Petrick,' 'Pres. 0. de Kerchove,' 'Deutsche Perle,' 'Niobe,' 'Pro- 

 fessor Wolters,' 'Simon Mardner,' 'John Llewelyn,' ' Deschry- 

 veriana. ' 



The best 

 early var. 



The best 

 late var. 



White 



Red or Pink 



White 



Red or Pink 



Striped or blotched | 



A. 



For bloom 



B. 



„ culture 



C. 



„ sale . 



A. 



,, bloom 



B. 



,, culture 



C. 



,, sale . 



A. 



,, bloom 



B. 



„ culture 



C. 



,, sale . 



A. 



,, bloom 



B. 



,, culture 



C. 



,, sale . 



A. 



,, bloom 



B. 



„ culture 



C. 



„ sale . 



Deutsche Perle 



Mme. Petrick ' 

 Mme. Van der Cruyssen 

 Mme. Petrick ' 

 Niobe ' 



Mem. de L. van Houtte 



Paul Weber ' 

 Imperatrice ' 



M. L. H. 



Bacteria of Soil. By J. G. lipman {Bot. Gaz. pp. 454-60, 

 June 1907). — Attempts to classify and introduce a new terminology of 

 soil bacteria. — G. F. S. E. 



Bamboos as Decorative Plants. By C. C. Hosseus (Garten- 

 flora, vol. Ix. pt. xvi. pp. 350-4). — Bamboos require exposure to the 

 sun and an open situation. The following are well worth 

 growing: — Arundinaria japonica, A. anceps (N. India), A. Kumasa 

 (Japan), does well in half shade, A. Hindsii var. graminea strongly 

 recommended, A. nitida (Central China) should be planted near water 



