NOTES AND ABSTRACTS. 



171 



consists of sixteen species indigenous to China and the Himalayas, one 

 only being known in Turkestan. P. hazarica is the only species 

 cultivated in Europe. It has a purple corolla and mealy leaves of 

 graceful habit and easy to cultivate.— F. A. W. 



Primula obconica superba. By G. T. Grignan (Rev. Hort. 

 October 1, 1906, pp. 448-449; coloured plate and 1 fig.).— A very 

 handsome primula, flowers bright red and resembling P. sinensis in size. 

 Raised from sport by M. Nonin. — C. T. D. 



Primula verticillata sinensis (?). By S. Mottet [Bee. Hort. 

 November 1, 1906, p. 504). — " sinensis " is a misnomer for " simensis," 

 indicating an Abyssinian origin and not a Chinese one, the name being- 

 derived from " Semen," a plain in Abyssinia. — C. T. D. 



Prunus triloba. By 0. Stapf (Bot. Mag. tab. 8061).— China. 

 Nat. ord. Bosaceae ; tribe Pruneac. Shrub or small tree, flowering before 

 the leaves ; flowers pink, 1 inch diameter. — G. II. 



Raspberry, Billard's Framboise Perpetuelle. By Alfred 



Nomblot (Bev. Hort. April 1, 1906, pp. 160-161 ; coloured plate). — 

 Descriptive of a highly recommended variety with deep crimson fruit, 

 bearing from July until the autumnal frosts ; cultural directions. 



C. T. D. 



Rhododendron Vaseyi.. By S. A. Skau (Bot. Mag. tab. 8081).— 

 North and South Carolina. Nat. ord. Ericaceae ; tribe Bhodoreae. A shrub 

 18 feet in height. Leaves lanceolate ; flowers precocious, odourless, 

 4-8 in an umbel ; corolla bright rose or purple, stamens extending beyond 

 the corolla. — G. H. 



Rhodostachys pitcairniifolia. By C. H. Wright (Bot. Mag. tab. 

 8087). — Chili. Nat. ord. Bromeliaceae; tribe Bromelieae. Stem short, 

 thick ; leaves crowded, uniform from an ovate base, inner ones crimson, 

 with purplish base ; flowers on a dense head ; petals blue. — G. H. 



Ribes Vibumifolium. By S. A. Skau (Bot. Mag. tab. 8094).- 

 Lower California and Santa Catalina Island. Nat. ord. Saxifragaceae ; 

 tribe Bibesieae. An evergreen shrub. Leaves inch long ; racemes 

 terminal ; calyx rose-coloured, ^ inch diameter ; petals very small, 

 greenish ; berries oval, scarlet. — G. H. 



Rosa rugosa : for Perfume. By H. Lebrun (Le Jar din, vol. xx. 

 No. 468 ; p. 264, August 20, 1906).— The substitution of B. rugosa for all 

 other varieties in the making of perfumes is urged. It appears from 

 the report of M. Gravereaux (addressed to the Minister of Agriculture. 

 December 31, 1905) that France imports over a third of the essence of 

 roses made in Bulgaria. M. Lebrun points out that the soil and climate 

 of France are particularly favourable to the culture of roses and manu- 

 facture of the essence. It would be desirable to replace all other 

 varieties by B. rugosa, the sweetest of all. Seeing that this rose wa^ 



