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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



It has all the vigour and hardiness of the Boston Fern, and is at the 

 same time much more graceful. It is interesting to note that the sport 

 first showed itself at the base of the frond only, but three years' isolation 

 and selection served to increase it, until it now covers the whole frond 

 except at the apex. — C. C. H. 



Nymphaea, Hardy. By Max Hesdorffer (Die Gart. p. 337 ; 19 4, 

 1902 ; with illustrations). — All the best hardy species and hybrids are 

 mentioned, and specially the French hybrids are for their vigour and 

 hardiness recommended. — G. B. 



Odontoglossum x Duvivierianum burfordiense. By R. A. 



Rolfe (Orch. Bev. p. 59 ; February 1902).— Interesting particulars of this 

 rare natural hybrid are recorded. — H. J. C. 



OdontOglOSSlim grande Pitteanum (Cogniaux in Diet. Icon. Orch. 

 Odontoglossum ; pi. 13a; 2 1902). — A remarkable form which appeared 

 1899 with Mr. H. T. Pitt, of Stamford Hill. The chocolate brown mark- 

 ings of the type have completely disappeared, leaving the flower two 

 delicate shades of yellow and brown with white lip. — C. C. H. 



Odontoglossum xRolfese {Orch. Bev. p. 57 ; February 1902 ; fig.). 



Interesting historical particulars are given of this choice and beautiful 

 hybrid Odontoglossum. — H. J. C. 



Odontoglossum x Wattianum Hardyanum. By R. A. Rolfe 

 (Orch. Bev. p. 62 ; February 1902). — Interesting particulars are here 

 given of the plant exhibited by Baron Sir H. Schroder at the R.H.S. 

 Meeting on January 14 last ; the distinguishing features from the oiiginal 

 are clearly pointed out. — H. J. C. 



Oncocyclus (Iris), New Hybrids of. By Dr. Attilio Raoionieri 

 (Bull. B. Soc. Tosc. Ort. 4, p. 114 ; April 1902).— In the spring of 1895 

 pollen of 0. susianus was transferred to the female organs of 0. atro- 

 purpureus, this method of procedure being adopted for the reason that the 

 former plant hardly ever sets perfect seed in the writer's garden. The 

 excellent crop of seeds produced by the fine capsule were sown in the 

 autumn. In the succeeding spring of 1896 not one of the seeds had 

 apparently germinated. The seedlings did not appear until the spring of 

 1897, when it was found that the young leaves sprang from smaT 

 underground rhizomes, the result of a purely hypoga?al germination of 

 the previous year. The writer remembers to have read of a similar phe- 

 nomenon occurring in the case of certain Liliums in England. Of ten 

 plants thus obtained six eventually flowered, the first flower appearing 

 in 1900 ; the other varieties flowered in 1901. The characters rendering 

 them superior to their parent are the following : — Flowering occurs 10-15 

 days earlier under the same conditions of soil, position, See. ; they are 

 more reels tent to disease and produce a greater abundance of flowers. The 

 genus as a whole does not like much manure, flourishes rather in sandy 

 oils and the detritus of old ruins. Excess of moisture, especially in a 

 stagnant condition, should be avoided. Culture in the open air, against 



