720 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



fungi mentioned is given, but it is omitted in the case of a number 

 of the smuts. 



One might easily find much to criticize in the nomenclature adopted, 

 but we will not let this detain us. We must, however, point out that 

 of the " form genera" included on pp. 167-169, Aecidium Phillyreae 

 has been connected with the curious Zaghouania Phillyreae, A . Glands 

 with Uromyces Scirpi (see Journal R.H.S. xx. p. cix), A. Euphorbiae 

 with Uromyces tuber culatus, Uredo Agrimoniae with Pucciniastrum 

 Agrimoniae, Uredo Symphyti with Melampsorella Symphyti, Uredo 

 Mulleri with Kuehneola albida, Uredo Quercus Brond. (not Brand, as 

 printed) with Cronartium Quercuum, while some of those fungi given 

 as not yet found in Great Britain have already been placed on record 

 as British, e.g. Puccinia Leucanthemi on the ox-eye daisy. We find 

 other odd statements here and there, as on p. 162, where we read 

 " Trollius europaeus is not a British plant, but is commonly cultivated." 



It is with great regret that we allude to a few of the many points 

 which a little more care and research on the part of the authors might 

 have made more perfect, for the book is of real value, and might 

 have been of so much greater value if this extra trouble had been 

 expended — and really the trouble would have been little when we 

 remember the splendid library and herbarium to which the authors 

 have such ready access. 



" Wild Flowers, and How to Name them at a Glance without 

 Botany." By Col. J. S. F. Mackenzie. 8vo., 224 pp. (Hold en & 

 Hardingham, London, 1913.) is. 



The author sets out to help the ignorant to name the commonest 

 wild flowers by means of descriptions arranged according to flower 

 colour and shape, stem and leaf form. Anyone who cannot identify 

 the plants by the aid of this little book must be dense indeed, and we 

 hope its use will spur inquirers on to find out more of these beautiful 

 " common objects " of the countryside. 



" Botany." By E. Brucker. 8vo., xv + 185 pp. (Constable, 

 London, 1913.) 2s. net. 



There are several series of books in course of publication aiming 

 to cover more or less completely all the area of human knowledge. 

 The present volume forms one of the series called the " Thresholds of 

 Science." The avowed aim of the series is "to meet . . . the need 

 of the man who would teach himself the elements of science, and the 

 need of the child who shows himself every day eager to have them 

 taught to him." This little book will fulfil the aim to a great extent 

 so far as the elements of botany go, in the case of the man, probably 

 without the aid of a teacher ; for the child, with his aid. It is simple 

 and accurate, and although written by a Frenchman (the whole series 

 appears to be by foreign authors), the examples chosen are well known 

 in Great Britain. 



