INDEX EEWENSIS 51 



nuda, seem to be thought deserving of a place : thus we have on 

 the first page " Abutilon album, Ilort. ex Gentile PL Ciclt. Serves 

 Jard. Bot. Brux. 3 (1907) nomen. — Hab.?" — a sufficiently doubt- 

 ful plant. Names omitted from the Index and from earlier 

 Supplements are included ; for a future Supplement it might be 

 well to include a list of such names which will be found in the 

 National Herbarium. The numerous still-born names published 

 by Garsault in 1764 and 1767 are now included — a desirable 

 addition in view of the fact that Gihbert's, many of which are on 

 the same footing, found place in the Index. We note however 

 that Gentaurium majus [Centaurea Gentaurium L.) is omitted — a 

 somewhat important oversight, inasmuch as the association of 

 this with C minus {Erythraa Centaurmm Pers.) has been cited 

 as evidence that Garsault had no claims to botanical knowledge 

 and that his names have no claim to recognition.''' 



It is of course only by use that the detailed accuracy of such 

 a work can be tested, but so far as a necessarily casual inspection 

 enables us to judge, this Fourth Supplement shows a great im- 

 provement on its predecessors. The new names published in this 

 Journal, which have in former Supplements often been overlooked, 

 seem, so far as we have tested them, to be duly recorded, the only 

 omission we have noticed being, curiously enough, Bazumovia 

 hisiyida, to the omission of which from the Third Supplement we 

 called attention when noticing that volume.! The work is 

 singularly free from misprints — the only one we have noticed is 

 in the third entry (" peudunculata ") — and the references are very 

 carefully done (Berger should replace Eendle as the authority for 

 Aloe pacdogona). We have thus little but praise for this Fourth 

 Supplement : our only regret is that when alterations were 

 being introduced, the insertion of a comma between name and 

 authority should not have been abandoned, in accordance with 

 general custom. And is it too much to hope that Mr. Jackson's 

 long promised introduction to the work may be issued with the 

 Supplement now in preparation ? 



TJie British Bust Fungi ( Uredinales) : their Biology and Classi- 

 fication. By W. B. Grove. Cambridge University Press. 

 Pp. xii. -{- 412, 290 figs, in text. Price 14s. net. 

 The study of the Uredinales, the group of fungi known more 

 popularly as "rusts," is one of the most fascinating in the whole 

 realm of botany. It is only within comparatively recent times 

 that some understanding has been arrived at with regard to their 

 strange life-histories and their amazing niceties as concerns their 

 particular host plants. One of the first systematic books (cer- 

 tainly the best, if regard be paid to the amount of original work 

 contained therein) to take any account of the biology of the group 

 was Plowright's Monograph of the British Uredinecs and Usti- 



* See Jouru. Bot. 1909, 322, where in line 5 from top ^' majus" should be 

 " TWjnws." 



t Journ. Bot. 1908, 267. 



