NOTES AND ABSTRACTS 



137 



stems twining to 10 feet in length ; corolla lh inch long, greenish, 

 purple spotted, and striped inside. — G, H. 



Colchicum crociflorum. By C. H. Wright (Bot. Mag. tab. 8055).— 

 Turkestan. Nat. ord. Liliaceac ; tribe Colchiceac, Perianth 3-4 inches, 

 white, with an external purple band.— G. H. 



Coloured Glass : Effect on Fruit (Le Jardin, vol. xxi. No. 477, 

 p. 12 ; January 5, 1907). — According to the Bulletin of Agricultural 

 Information, pots of ripe strawberries when placed respectively under red 

 and blue glass show a marked difference. Those beneath red glass were 

 completely spoiled in two days, those beneath blue remained good for 

 a week (see abstract on p. 257, vol. xxxii., June 1907, Joubnal R.H.S.), 



F. A. W. 



Coloured Glass : Effect on Vegetation (Le Jardin, vol. xx. 

 No. 470, p. 273 ; September 20, 1906). — Pursuing his researches on 

 the action of coloured radiation upon growth, M. Camille Flammarion 

 finds that Impatiens hostii presents a remarkable exception to the 

 general rule. Under green glass it grew about 40 cm. (16 inches), under 

 blue glass 36 cm. (14h inches), under red 28 cm. (11 inches), while under 

 white glass only 36 cm. (14^ inches). There were no symptoms of 

 etiolation. Male fern under similar conditions grew very slowly, but 

 remained green till the end of January in the blue house, and till March 

 in the green.— F, A. W. 



Coreopsis 4 Tom Thumb,' * Rayon d'Or ' (Rivoire, DenaifTe) 

 (Le Jardin, vol. xxi. No. 478, p. 28 ; with fig. ; January 20, 1907).— 

 New variety, highly recommended. — F. A. W. 



Corn Selection. By F. W. Card (U.S.A. Exp. Stn. Rhode L, 

 Bull. 116 ; 9 figs. ; October 1900). — A continuation of the work in selecting 

 corn with the object of increasing the number of ears produced is here 

 reported upon (see Journ, R.H.S. vol. 29, p. 892). A steady increase in 

 the number of ears per plant has been obtained, over 90 per cent, of the 

 plants now bearing more than one ear, against 35 per cent, in 1901. One 

 plant produced thirteen ears. Selection from the upper ears gave the 

 best results, this being probably due to their better nutrition.— J 7 . J. C. 



Cotton, Fungoid Diseases Of. By L. Lewton-Brain, B.A., F.L.S. 

 (Jour. Imp. Dep. Agr. W.I. vol. vi. No. 2 ; 1905).— There are three 

 chief leaf diseases of cotton in the West Indies, none of which can be 

 described as serious at present, though they might become so. 



"Rust," due to Uredo Gossypii. 



'•'Leaf spot," caused by Gercospora gossypina. 



" Leaf mildew," cause not identified. 



Boll diseases are: " Anthracnose," probably caused by Golletotrichvm 

 Gossypii. 



"Black boll" appears under all conditions, and is probably associated 

 with bacteria, 



