452 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Biirnat's formula is as follows: — 



Hydraulic lime 50 per cent. 



Steatite ....... 30 „ 



Cement 20 „ „ 



and M. de Istwaufi's: — 



Bisulphate of lime . . . . . 10 per cent. 

 Powdered clay 90 „ ,, 



The lime may be replaced by bisulphate of magnesium. — M. L. H. 



Chrysanthemums, Classification of {Jour. Soc. Nat. Hort. Fr. 



series iv. vol. xii. Jan. 1911, p. 48). — The chrysanthemum section of 

 the National Horticultural Society of France has completed its annual 

 revision of the classified lists of the best varieties of the plant. A 

 group of single chrysanthemums has been added to those in earlier 

 lists, and other groups are slightly altered in order and in classification. 



M. L. H. 



Cirrhopetalum long^issimum (Bot. Mag. tab. 8366). — Siam. 



Family Orchidaceae; tribe, Epidendreae. Herb, epiphyte; leaves, 

 3^-6 inches long; scapes curved, 8, inches long ; flowers in umbels of 

 4-7; sepals greenish with red veins; petals, oblong-lanceolate with very 

 long slender tails, white. — G. H. 



Cladothamnus pyPOlaefloruS {Bot. Mag. tab. 8353).— North- 

 west Africa. Nat. ord. Ericaceae; tribe Rhodoreae. Shrub, 4-10 feet 

 high; leaves, almost sessile, lanceolate, f-2 inches long; flowers ter- 

 minal, calyx-lobes leafy ; petals oblong, yellowish-red; style declinate; 

 capsule, subglobose. — G. H. 



Clematis aristata var. Dennisae {Bot. Mag. tab. 8367).— 



Australia. Family Ranunculaceae ; tribe, Clematideae. Shrub, 

 dioecious, evergreen, climbing; leaves 3-foliate; panicles many flowered; 

 male flowers, sepals white, f-1 inch long; stamens, filaments salmon- 

 red, anthers^ yellow. — (7. H. 



Clematis montana var. Wilsoni (Bot. Mag. tab. 8365).— China. 

 Family Ranunculaceae; tribe, Clematidae. Shrub, climbing; leaves, 

 3-foliate; peduncle, 1-flowered, 2 inches across; sepals white. — G. H. 



Clematis montana. Hybrid {Rev. Hort. June 1, 1911; p. 244).— 

 Description of three varieties listed by MM. Lemoine, Nancy, a 

 hybrids between C. viontana grandiflora and C. montana ruhens viz. 

 G. montana lilacina, blue lilac colour, flowers like ruhens but larger. 

 G. montana perfecta, flowers one third larger than C. montana grandi- 

 flora, perfect form, wide sepals and bluish white, resembling Anemone 

 sylvestri'.s grandiflora.; and C. montana undulata, flowers 7 to 8 ceuti-J 

 metres diameter, sepals wavy and white tinted blue. — G. T. D. 



