1170 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



The author is unable as yet to speak about the qualities in this con- 

 nection of M, Arnoldiana and M. imperialis, on account of their present 

 small size ; but it can be seen that they behave differently from 

 M, religiosa, which they adjoin in position. It is hoped that M. Arnold- 

 iana, from the shortness of its robust leaf- stalks, its prominent veins, and 

 the dense tissue of the leaf, will be able to resist the wind better than 

 other species. M. imperialis received two fractures from the wind, and 

 one would expect its longer and more delicate leaf-stalks to be more 

 susceptible to such injury than is the case with M. Arnoldiana. 



w. a w. 



Mushroom Culture. By 0. Thomas (Garden, No. 1G20, p. 403 \ 

 6 12 02, No. 1622, p. 430, 20 12/1902).— The first two chapters of an 

 article of some length dealing with the culture of Mushrooms in garden, 

 field, and cottage plot. The system of culture both out of doors and. 

 under cover is thoroughly explained, and the manufacture of spawn is also 

 treated of.— E. T. C. 



Nemophila, Revision of the Genus. By H. P. Chandler (Bot. 

 Gaz. xxxiv. p. 194, No. 3 ; 4 pis.). — The author reduces this polymorphic 

 North American genus to eighteen species. Two belong to the Southern 

 States, one to the Rocky Mountains, and the rest to the Pacific slope, 

 principally California. The author observes that " the almost infinite 

 variation makes an accurate limitation of species absolutely impossible ;. 

 and most of the species described include a great variety of more or less 

 inconstant forms." Each species is described in full, with localities 

 and references to authors. — G. 77. 



Nepenthes. By R. Jarry Desloges (Lc Jard. Dec. 20, 1902, p. 375).— 

 A long dissertation on the different methods of the cultivation of this 

 genus, with illustrations. — C. W. 1). 



Odontoglossum x Adrianae leopardinum (L. Linden in Lind. 

 xvii. t. 782; 15/9/1902). — A pretty form of this well-known natural 

 hybrid, 0. x A. tigrinum, Id. t. 791 ; a dark form. — C. C. 77. 



Odontoglossum x Adrianae Victoria-Regina {Orch. Rev. p. 329, 

 fig. 35, Nov. 1902). — A fine illustration of this beautiful natural hybrid 1 

 Odontoglossum, and interesting records are given. — 77. J. C. 



Odontoglossum erispum, A remarkable Series of (Orch. Rev. 

 p. 9, fig., Jan. 1903). — Here are included illustrations, well reproduced, of 

 one of the most wonderful series of Odontoglossum erispum ever brought 

 together. Historical particulars and records are given with the illustra- 

 tions, which include 0. c. Luciani, 0. c. ' Imperator,' 0. e. 'Queen 

 Victoria,' 0. c. 1 Franz Maserul,' 0. c. hcliotropium, O. c. Stevensii, and 

 0. c. ' Prince of Wales.'— 77. J. C. 



Odontoglossum erispum 'La Veine' (L. Linden in Lind. xvi. 

 t. 758; 31/12/1901). — A beautiful form, pure white with a large regular 

 vinous-brown blotch on each of the sepals, petals, and lip.— ft C. 77. 



