ABSTRACTS. 



325 



through the State or national Governments, is also dealt with briefly but 

 in some detail." 



The connection between the irrigation question and the State and 

 national legislation gives this testimony much importance. — C.H. ft 



Jarring* for the Curculio on an extensive Scale in Georgia, 

 with a List of the Insects caught. By W. M. Scott and W. F. 

 Fiske (U.S.A. Dep. Agr., Bull. 31, N.S., pp. 24-36 ; 1902).— The curculio 

 here treated of is a species of weevil. There is no British representative 

 that is in the same way injurious to fruit. The "jarring " operations 

 were carried on by eleven gangs of five hands each. Each gang was 

 supplied with an outfit consisting of two sheets stretched over light wooden 

 frames, six by twelve feet in dimensions, and a pole eight feet long padded 

 with rubber on one end, which served as a " bumper." With eleven pairs 

 of sheets about 40,000 trees were treated in a day. It required sixty 

 hands to operate the eleven pairs of sheets, and the cost for labour 

 amounted to $25 per day. The results were highly satisfactory, reducing 

 the curculio attack to about four per cent., while the fruit in an untreated 

 orchard amounted to about 40 per cent, of the entire crop. A list of 325 

 species of insects is also given. — B. N. 



Jasminum Maing'ayi. By Sir J. D. Hooker (Bot. Mag. tab. 7823). 

 Nat. ord. Oleacece, tribe Jasminece. Native of Penang. It flowered 

 at Kew in 1901. The leaves are 3-4 inches long, entire. It has 

 terminal cymes of rather large white flowers, the segments of the corolla 

 being from eight to ten. — G. H. 



Johnson Grass. By Carleton E. Ball (U.S.A. Dept. Agr. (Bur. 

 PI. Ind.), Bull. 11, 1901 ; illustrated).— This report deals with the plant 

 known as ' Johnson Grass ' (Andropogon halepensis), which, while some- 

 times used as a hay and fodder crop (chiefly in the Southern States), 

 becomes a serious pest in grain fields and Cotton plantations. It is 

 chiefly troublesome in Texas (where a law against it is in operation), 

 New Mexico, iirizona, California, &c. Its origin, distribution, dissemi- 

 nation, control, and methods of eradication are fully dealt with. 



C. H. C. 



Kalanchoe SOmaliensis. By Sir J. D. Hooker (Bot. Mag. tab. 

 7831). — Nat. ord. Crassulacece. Native of Somaliland. It flowered at 

 Kew in 1901. The inflorescence is a branching panicle with white 

 flowers, the tube of the corolla being 2\ inches long. — G. H. 



Lachnanthes tinctoria, Nomenclature of. By J. Britten (Joum. 



Bot. 469. pp. 23-5; 1/1902). — A demonstration that this plant is 

 correctly known as Gyrotheca tinctoria, and that it was introduced by 

 Fraser in 1788.— G. S. B. 



Lselia x Lindleyana purpurea, Cogn. (Cogniaux in Diet. Icon. 

 Orch., Laelia, pi. 10a ; 2/1902).— A remarkable variety imported by M. 

 Madoux, of Anderghem, from Santa Catherina, Brazil, and first flowered 

 in 1901. It is generally supposed to be a natural hybrid between 



