612 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



have a distinct tendency to emit axillary buds above the base of the 

 main stems, and that in cases of apparent bifurcation one of the branches 

 is a lateral bud. A list is given of about twenty species in which 

 branching is known to occur. Numerous other points of interest are 

 touched upon in connection especially with the palms of the Singapore 

 Botanic Garden and the Malay Peninsula. — .4. D. C. 



Paphiopedilum villosum, var. annamense. By R. A. Rolfe 

 (Bot. Mag. tab. 8126). — Nat. ord. Orchidaceae; tribe Cypripedieae ; 

 Annam. Plant 1 foot high ; upper sepal erect, 2 inches long, cream- 

 coloured, veined, and suffused with dark purple ; petals light yellow veined 

 and suffused with brown. — G. H. 



Pecan Culture, Report on. By H. Harold Hume (Agr. Exp. 

 Stn. Florida, Bull. 85 ; plates). — A complete and detailed account of 

 the culture of the pecan, a tree belonging to the walnut family, which 

 is native in the alluvial bottoms of the Mississippi. Its cultivated area 

 corresponds closely with that of the cotton plant, though the pecan has 

 the slightly wider range of the two. In Florida the work of producing 

 new varieties of pecan of known parentage is being systematically 

 taken up.— M. L. H. 



Pelargonium, Diseases of. By M. J. Chifflot (Jour. Soc. Nat 

 Hort. Fr. ; 4th Series, vol. viii. ; June 1907). — A detailed account of all 

 the diseases which may attack the Pelargonium divided into — 



1. Diseases caused by vegetable parasites ; 



2. Diseases caused by animal parasites ; 



3. Organic diseases ; 



with their appropriate cure and methods of prevention in each case. 



M. L. H. 



Phosphates, Test of Nine, with different Plants. By H. J. 



Wheeler and G. E. Adams (U.S.A. Exp. Stn. Bhode I., Bull. 118; 

 1906). — The results of tests with nine different phosphates on various 

 plants are given, and the following results are typical of the majority, 

 and show, in a remarkable degree, the value of lime when used in 

 combination with the phosphates. 





Yield of peas in poil (pounds) 



Phosphate applied 









Limed 1894 



Not limed 



Dissolved bone-black .... 



29 



16 



Dissolved bone 



32 



20 



Dissolved phosphate rock .... 



27 



19 



Fine ground bone 



29 



21. 



Basic slag meal 



26 



24 



Floats . . . . ' . 



•17 



18 



Kedondite (raw) 



11 



8 



Bedondite (roasted) 



22 



9 



No phosphate 



15 



6 



Double superphosphate .... 



29 



12 



The quantity of phosphoric acid applied before the crop was sown 

 varied, but in every case the total of phosphoric acid applied since the 



