100 THE JOURNAL OF BOTANY 



be found : Thlaspi arvense, Geranium rotundifolium, Lathyrus 

 Nissolia, Pyrus torminalis, Sedum Telejpliium, S. album, Lactuca 

 saligjia, Senecio viscosus, Beta maritima, Polygonum mimts, Salix 

 pu7'purea, Colchicum autumnale, Setaria viridis, Phleum arena- 

 rium; of those said to be probably extirpated we still have 

 Myosunis minimus, (Enanthe silaifolia, Kentranthus ruber; Limo- 

 sella aquatica, Veronica spicata, Myrica Gale, and Liparis Loeselii. 

 On the other hand, many species — Senecio paludosus in particular 

 — have not been seen for a considerable period. 



" Of plants said to be unknown in the county we have Lychnis 

 dioica. Digitalis purpurea, Festuca duriuscula, Tragopogon pra- 

 tense, Epilobium angustifolium, Lepidium Smithii, Zostera marina 

 c. angustifolia, Cardamine amara, Sagina maritima d. densa, 

 Quercus sessiliflora, Teesdalia nudicalis, Vicia lathyroides, and 

 possibly Anagallis fcEViina/' 



The annotated list of some of the rarer plants is very well 

 done, and may be taken as a model of how the subject should be 

 treated. Here again, however, it would have been well if the 

 date had been added after each reference as it is after some. The 

 seventeenth century record of Pinguicula lusitanica for the county 

 contained in Herb. Sloane xxvii. (f. 144), which was published in 

 this Journal for 1909 (p. 101), seems to have escaped Mr. Evans's 

 notice. A trifling correction may be made on p. 213 ; the British 

 Museum specimen of Limonium reticidatum is marked "Jas.," 

 not "T.," Sowerby. It would, we think, be well in these days of 

 conflicting nomenclature to indicate in such works as this exactly 

 which list or book has been followed. We note with pleasure 

 that casuals of the kind which disfigure and increase the bulk of 

 some recent floras without adding to their value find no place in 

 Mr. Evans's list. 



Etudes sur le Flore des Districts des Bangala et de VUbangi. 

 Plantce Thonneriance Congolenses. Serie ii. Par E. de Wilde - 

 MAN. Introduction par M. Fr. Thonnee. 8vo, pp. xvii, 

 443 ; with frontispiece, map, figures in text, and 20 plates. 

 Brussels : Misch & Thron. 1911. Price lis. 



This volume adds another to the series of admirably got-up 

 and lavishly illustrated works on the botany of the Congo district 

 which is owed to Dr. de Wildeman. The present publication is a 

 continuation of the Plantce ThonneriaucB Congolenses, V^ Serie, by 

 the same author and the late Th. Durand, which appeared in 1900, 

 and which embodied an account of the results of M. Thonner's 

 first botanical trip in this region in 1896. The volume now issued 

 contains, in addition to a systematic description of the plants 

 collected on the second journey, a general account of the district 

 and its flora. 



In his introduction M. Thonner describes the route taken on 

 his two expeditions and some of the general botanical characters 

 of the region traversed. This comprises the area between the 



