238 



JOURNAL OF TH;E ROYAL HORTICULTURAL SOCIETY. 



Primrose from the mountains of Lazistan, at an altitude of nearly 

 1,000 feet. Though discovered nearly half a century ago it is still one of 

 the rarest species in cultivation. — W. G. 



Primula Obconica. Anon. {Gard. Mag. 2465, p. 51 ; 

 26/1 1901). — An account of the efibrts made by cultivators in the 

 improvement of this Primrose from Central China, and a record of the 

 futile attempts at hybridising the species with others by Mr. Shea. 



W. G. 



Primulas, Hardy. By H. Correvon {Bcv. Hort. p. 242 ; January 

 1901). — Classification of and culture. — C. T. D. 



Proliferous Leaves. By C. de Candolle (Gard. Chron. p. 319 ; 

 figs. 17-20; 8/5/1901). — An account of these leaves, with figures. 



G. S. S. 



Protarum, a New and Interesting" Genus of Araceae from the 

 Seychelles. By A. Engler {Engl. Bot. Jahrb. xxx. Beibl. 67, p. 42 ; 

 12/3/1901). — " A valuable addition to the ancient endemic genera, which 

 are proof of the great age of these islands, ... a prototype of the sub- 

 family Aroidejp, which still retains traces of a primitive hermaphrodite 

 character." — A. B. B. 



Pruning" of Hardy Trees and Shrubs. By W. Dallimore {Jour, 

 of Hort. 2737, p. 218 ; 14 3/1901). — Shows the necessity and method of 

 pruning, also the means to be taken in order to prevent fungoid diseases 

 entering the wound. — W. TU. 



Prunus mume. Anon. {Gard. Chron. p. 183; fig. 71; 

 23 3/1901).— A short account of.— G. S. S. 



Pteris Hybrids {Bev. Hort. Beige, January 1901). — After referring 

 to P. serrulata as originating many forms, P. cretica, a cross from the 

 preceding, is described as being equally remarkable for giving rise to 

 numerous variations, which are given in detail. They are all very strong 

 growing and much appreciated commercially. — G. H. 



Pyrus alnifolia {Bosacec?), Japan and China {Bot. Mag. tab. 

 7773). — A small tree flowering in the Arboretum, Kew. Leaves 2 to 3 in. 

 long, acuminate, doubly serrate, with deeply immersed veins. The corymbs, 

 2 to 3 in. across, have white flowers. — G. H. 



Pyrus tianschanica {Bosacecs), Central Asia {Bot. Mag. tab. 7755). 

 — Represents the Mountain Ash ; a small tree with white flowers and 

 bright red fruit. Growing in the Arboretum, Kew.— G. H. 



Pyrus tianschanica. By W. J. Bean {Gard. Mag. 2468, p. 92 ; 

 16/2^ 1901). — A newly introduced species of the Sorbus or Mountain Ash 

 group, and was flowered for the first time by Mr. T. Smith, of Newry, in 

 1899. It is of similar growth to the common Mountain Ash and bears 



