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P. SiBERicA SUAVOLENS. — A good sizcd Spreading tree. Mr. 

 Goegginger says like a Tilia. Said to grow larger tiian S. pyram- 

 idalis. 



Of others, Wobsii, Mr. Shroder, at Moscow, says, is a large 

 as well as a good tree, with broad leaf. It is said to be from 

 Turkestan. Petrovskoe, Mr. Goegginger says, is a Turkestan 

 variety, growing at Petrovskoe, also a broad leaved variety. 

 Nigra horizontalis, said to be from Tashkent. Simonu, an 

 Asiatic variety with red twigs and a close thin leaf the least like 

 the Balsameas. Effratica or diversifolia from Turkestan is a 

 curious variety of irregular foliage. So says Mr. Goegginger of 

 Riga, who has the largest collection of these poplars which we 

 saw. Tristis is a variety with dark concave, thick, glossy leaf, 

 which sprang up by chance in the Botanic Garden at St. Peters- 

 burg. 



These varieties are mostly variations of what Pallas called the 

 Siberian balsamifera. They will not grow to as large size as our 

 own Balsam of Gilead, which here is a lofty tree with a trunk three 

 feet and even four feet in diameter, and which reaches a diameter of 

 6 to ID feet on the upper Peace river in the North West. They 

 are, however, so easy of introduction, so easily scattered, they 

 differ so much in foliage and growth, that they must be looked 

 upon as interesting and valuable introductions. , 



PRUNUS-Plum. 



P. PADUS AUCUBAEFOLIA. — Variegated leaved bird cherry. 

 This and other varieties quite hardy in the north. 



P. Maakia. — Hardy at St. Petersburg. 



P. SPiNOSA. — The dwarf form on the Volga, seldom grows over 

 three feet. I have seen bushes 1 8 inches high loaded with bright 

 blue little fruit. Very ornamental. 



. PYRUS— Apple and Pear. 



Some very ornamental trees among the wild forms of the apple 

 and pear. 



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