252 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



The entire plant is 5 ins. high, obovoid-oblong, crossed with bands of 

 pale purple stria', eight-ribbed. — G. II. 



Exochorcla Alberti macrantha. By J. Foussat (Bev. Hort. Jan. 

 1. 1908, pp. 18, 19 ; one woodcut). — A hybrid shrub, by Lernoine, between 

 /•'. grandiflora and E. Alberti. Inflorescence abundant, the branches 

 appearing to be covered with snow. There is an editorial footnote that 

 M . V. Morel, Lyon-Vaise, had previously made the same cross with the same 

 results under the name of E. Alberti grandiflora, and hence is entitled to 

 priority. A further note by F. Morel appears in Bev. Hort. Feb. 1, 

 1903, pp. G4, 65 ; two woodcuts. He considers E. Alberti and E. grandi- 

 fhra to be merely geographical variants of one species, and his hybrid (?) 

 arose by mere association of the two forms. Plants raised from the seed 

 present little variation among themselves or from the immediate parents. 



C. T. D. 



FagTaea, Extra-floral Nectaries in. By A. Zimmermann [Ann. 

 Jard. Bot. Bit it. vol. hi. pp. 1-7 ; 1901). — A description of the structure, 

 distribution, and development of the nectaries on the leaves of certain 

 species of Fagrtea. — P. G. 



Farmyard Manure, its Value (U.S.A. Exp. Stn. Ohio Bull. 

 134). — Farmyard manure is relatively deficient in phosphoric acid. 

 Kainit and gypsum each added to this manure prevented the escape of 

 ammonia, but the addition of phosphatic material gave the best results, 

 used as an absorbent in the stable, thus securing intimate mixture with 

 the manure in its fresh condition. — C. H. II. 



Fatty Degeneration : a new type of disease in plants. By 



E. Laurent. (Bev, Hort. Beige, xxviii. No. 4, p. 75). — The author 

 di scribes the appearance of yellow spots on the leaves of Kcntiaand other 

 Palms, giving them the appearance of being variegated. They are due to 

 a t itty degeneration of the cholorphyll granules, in consequence of an 

 excessively damp atmosphere. — G. II. 



Fermentation and Putrefaction. By George Massee, F.L.S., 

 V.M.H. (Jowrn. Q.M.C. April 1903). — A popular explanation of the 

 phenomena of fermentation : dealing with the Yeast Fungi, or Saccharo- 

 . a nd their influence in fermentation; and with the Bacteria, or 

 tcetes, and their association with putrefaction; ending with a 

 reference to the plant diseases which are caused by bacteria, and 

 ( specially to a Potato disease now prevalent in the United States. 



M. C. C. 



Ferns with coloured Foliage. By A. v. d. H. (Bev. Hort. Beige, 

 xxviii. No. i, p. 77).— This contains references to or descriptions of a 

 rable number of species of yellow, white, striated characters &c. 



G. II. 



Fertilisers for Flowers. By C. W. Ward [Proc. Soc. Am. Flor. 

 1902, p. 27).— To get the best results with chemical fertilisers employ 

 oil rich in vegetable fibre. 



