J20 THE JOURNAL OF BOTANY 



M + 





A Fumaria Hybrid.— Whilst 



June 1904, we noticed in a cultivated field near Wendover, Bucks, 

 a fine growth of typical F. densiflora and F. officinalis. With these 

 two species, plants were seen intermediate in character as regards 

 bracts, &c, and, moreover, apparently quite barren. We could not 

 resist forming the opinion that these might well be of hybrid origin, 

 and Mr. Pugsley, who afterwards saw a dried example, was of the 

 same mind. Mr. G. C. Druce (Fl. Berks, 38) says that he has not 

 observed any intermediates between the two species where both 

 grow together in Berkshire, but refers to the Flora of Herefordshire y 



densiflora (p. 18). In another field, 



Vaillantii, and F. parviflora flourisl 



diates were noticed. — C. E. Salmon. 



densiflora, F. offi 



- 





NOTICES OF BOOKS. 



Haandbog i Norges Flora af Axel Blytt . . . udgivet ved Ove Dahl. 



Med 661 illustrationer. Alb. Cammermeyers Forlag. 8vo, 

 pp. xi, 780. Kristiania. 1906. 



This may be taken as a second condensed edition of the Norges 

 Flora of M. N. & A. Blytt (1861-1877), which appeared in two parts, 

 with an index and supplement in 1877, consisting of 1348 pages. 

 In the present work of 780 pages the descriptions are much short- 

 ened, and also the distribution. The 661 illustrations, although 

 only measuring about 8 in. x 2, are mostly excellent in catching 

 the habit of the species, especially the ferns. The descriptions 

 extend to about 1338 species and 186 subspecies. The classifi- 

 cation is that of Engler and Prantl. 



The author has consulted all the recent Scandinavian floras ; 

 the northern limit of species is given from that laborious work of 

 Norman, the Arktiske Flora. The vexed question of nomenclature 

 seems to have attracted attention, as many of the names of the 

 Norges Flora of 1861 are changed. In many cases our British 

 species are involved : e. g. Hymenophyllum peltatum Desv. = B. 

 tunbridyense ; Hierochloe odorata is so named in the text, but the 

 drawing is called H. borealis ; Carex caryophyllea Latourr. = C. 

 precox Jacq., C. verna Chaix. Potent ilia verna L. contains two 

 subspecies— major Wahlb. = P. alpestris Hall, and minor A. Blytt = 

 P. verna Fr. & Gilib. ; and so on. Coleanthus subtilis Koem. & 

 Schult., which occurs on the dried-up sandy shores of large ponds 

 in very dry seasons, may possibly occur in England, as was sug- 

 gested many years ago by Dr. Trimen. 



Of the critical genera, Rubus has 14 species with 4 subspecies; 

 Hieracium, 83 species and 31 subspecies ; Sali.r, 24 species and 

 2 subspecies, with 32 hybrids ; Carex, 85 species, 12 subspecies, 

 and 18 hybrids. 



