634 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



of all the plants known from China proper, Formosa, Hainan, Corea, the 

 Luchu Archipelago, and the Island of Hongkong, together with their 

 distribution and synonymy." — G. S. S. 



Chinese Plants, Descriptions of New. Chiefly by S. T. Dunn 

 {Jouni. Linn. Soc, Bot. vol. xxxv. p. 483). — In this paper are described a 

 number of new plants which were collected by Dr. A. Henry in Yunnan, 

 together with some from other sources. An introductory note is con- 

 tributed by C. H. Wright. — G. S. S. 



Chloraea longibracteata. By Yv. B. Hemsley (Bot. Mag. tab. 

 7909). — Nat. ord. Orchidece, tribe Neottiece. Native of Chili. This 

 genus differs from its allies it having no spur. This is a terrestrial herb, 

 12-18 inches high, with radical sub-rosulate leaves. Flowers 1-H inch 

 diameter, loosely spicate. Sepals white, the two lateral with horn-like 

 tips, terminal oval-oblong like the petals. The labellum is orange - 

 coloured and crested. — G. H. 



Chlorides, Conditions Determining- the Poisonous Character 



Of. By H. J. Wheeler and R. L. Hartwell {U.S.A. Exp. Stn. Bhode I., 

 Rep. 1902, pp. 287-304). — A record of a series of experiments to determine 

 under what conditions chlorides of calcium, &c, are poisonous to plants. 

 The conclusions arrived at are : 1. That chlorides of calcium and am- 

 monium exert a marked poisonous effect on certain plants when applied 

 to an acid soil. Magnesium chloride was found not to be poisonous 

 under the same conditions. 2. Calcium carbonate or caustic magnesia, 

 or a mixture of basic slag with potassium and magnesium chloride, was 

 found to counteract the ill effect of the calcium or ammonium chloride. 

 3. That, provided the soil is not acid, a mixture of sulphate of ammonia 

 and muriate (chloride) of potash or kainit may be used for manuring. 

 Acidity is overcome by the addition of lime or wood-ashes to the soil. 



F. J. C. 



Chrysanthemum Diseases (Maladies et Parasites du Chrysantheme). 

 (Bull. Soc. Myc. Fr. xix. 378). — The following is an enumeration of the 

 diseases to which the Chrysanthemum is liable: — Phyllosticta Lcucanthcmi 

 (Speg.), Cylindrosporium Ghrysantliemi (E. k D.), Septoria socia (Pass.), 

 Septoria Leucanthemi^a.cc. k Sp.), Septoria Chrysanthemi (Cav.), Oidium 

 Chrysanthcmi (Rabh.), Pucc'uiia Chrysanthemi (Roze). — M. C. C. 



Chrysanthemums, Manurial Experiments with (Gartenflora, 

 1/6/03, p. 297 ; 15/6/03, p. 315 ; 1/7/03, p. 347 ; 6 figs).— This article 

 describes manurial experiments upon pot plants of the large-bloomed 

 Chrysanthemum ' Viviand-Morel,' carried out by a committee in 1899 at 

 four places. At two stations the plants were grown indoors, at the others 

 out of doors. The soil in which the plants were grown was first mixed 

 with one gram of potassium phosphate for every kilogram used, i.e. one 

 part in every 1,000 of soil. Rain-water was used for watering the plant. 



The plants received manures as below : 



Series I. Unmanured (control plants). 



„ II. Sulphate of ammonia 5 parts in 1,000 of water. 

 „ HI. Sulphate of 'ammonia 20 parts in 1,000 of water. 



