NOTES AND ABSTRACTS. 



317 



Sagittaria sagittifolia grandiflora superba. By W. Miitze 

 (Die Gart. No. 17, p. 197, Jan. 21, 1905). — A hybrid between S. sagitti- 

 folia and S. monteuidensis, with fine ornamental foliage and large, white 

 flowers, with a dark central spot. It is quite hardy, and in every respect 

 a superior plant in comparison with S. sagittifolia or its varieties. — G. B. 



Sahara Desert, Agriculture in. By Thomas H. Kearney (U.S.A. 

 Dep. Agr. Bur. PI. Inch Bull. 86 ; plates). — An account of the population, 

 climate, and date gardens of Oued Souf in the Sahara Desert, prepared 

 with the view of showing the inhabitants of the Salton Basin, and of 

 other hot and arid regions of the South-West, how much has been accom- 

 plished under equally unpromising conditions. — M. L. H. 



Salvia splendens Freudenfeuer. By G. Bartsch (Die Gart. 



No. 16, Jan. 1905, p. 184). — This is undoubtedly the finest and most 

 fioriferous variety of the well-known Salvia splendens. The rather large 

 blossoms are of a deep scarlet colour, and flower uninterruptedly from 

 August till late autumn. A grand plant for indoor as well as outdoor 

 decoration.— G. B. 



San Jose Scale in Kentucky (U.S.A. Exp. Sin. Kentucky, Bull. 

 110 ; 12/03). — This scale is reported to be spreading in Kentucky owing 

 to its presence in private gardens which are not open to the inspection of 

 the State officials. The lime- sulphur-salt wash is reported to be the 

 most satisfactory for use in Kentucky, and fumigation with hydrocyanic 

 gas the best remedy of all. — F. J. C. 



San Jose Scale* Spraying Experiments. By W. E. Britton and 

 B. H. Walden (U.S.A. Exp. Stu. Connecticut, Bull. 116; 10/1901; 4 

 plates). — Comparison between 15 spray-fluids was made, and the results 

 point to the lime-sulphur mixtures as the best for autumn and winter 

 spraying against this pest. — F. J. G. 



Saxifraga apiculata (hybrid). By T. A. Sprague (Bot. May. tab. 

 8048). — Nat. ord. Saxifragacece, tribe Saxifragece, of garden origin. A 

 tufted plant, leaves 1^ in. long, in basal rosettes ; flowering stems, 

 2-3J in. long, 5-9-flowered. Petals pale yellow, ^ in. long. — G. H. 



Scale, The Cottony Maple (Pulvinaria innumerabilis Bath von). 

 By J. G. Sanders (U.S.A. Dept. Agr. Bur. Entom. Circ. 64 ; 4 figs.).— 

 Considerable damage has been sustained through the attacks of this scale 

 on Acer saccharinum and Acer Negundo in .America, and it has been 

 found on 47 other species of trees and shrubs in addition. The pest 

 covers the twigs with large, white, flocculent masses, the ovisacs, in June, 

 and the young hatch out from June until August, migrating to the leaves, 

 upon which they live during the summer. The English sparrow, the 

 ladybirds (Chilocorus bivulnerus Muls., Hyperaspis binotata Sary, and 

 H. signata Melsh.) and other insects usually keep this pest within bounds, 

 but at times it is necessary to resort to artificial means of control. The 

 best results have followed treatment with kerosene emulsion (2 gallons 

 kerosene, 1 quart soft soap, 1 gallon water) in the winter, and a much 

 weaker kerosene wash in summer. — F. J. C. 



