276 REVIEWS. [September, 



as has been stated, 1,300, and deducting the 120 plants not found 

 in Britain, the number of species common both to England and 

 Belgium is 1,180, and hence, according to Cocker, there are 320 

 British plants which are not found in the Belgian Flora. 



In a few plants, which are both English and Belgian, the rela- 

 tions expressed by the terms native, spontaneous, naturalized, 

 appear to be reversed, or a plant native in the one country is 

 only spontaneous or naturalized in the other, and vice versa. 

 Altli(Ra officinalis has the brand (f) prefixed, with the subjoined 

 remark, — " Plante cultivee. ^a et la naturalisee pres des habi- 

 tations." This may be because Belgium has but little seacoast. 

 The plant likes a stiff, wet soil, not far from the sea or a tidal 

 river. Althaa hirsuta, on the other hand, one of our most recent 

 introductions, is entered as truly native in Belgium. 



Again, Salvia pratensis is the common plant of the genus in 

 Belgium ; S. verbenaca and S. Sclarea are entered as especes 

 cultivees, only grow accidentally in Belgium. Also, Primula 

 vulgaris is absent from the Belgian Flora. P. elatior is entered, 

 " Assez commun en bois frais et assez rare en prairies." 



In England, Primula elatior and Salvia pratensis are among 

 our rarest plants ; while Salvia verbenaca and Primula vulgaris 

 are very frequent, if not very common. 



There are two plants entered in M. Crepin^s list without any 

 sign of their exotic origin, though they are universally recognized 

 as belonging to this class, viz. Solanum tuberosum and Datura 

 Stramonium. On the contrary, Lycium barbarum, which is na- 

 turalized in some parts of England, is marked with the sign of its 

 exotic descent. Perhaps M. Crepin will inform our readers why 

 he has prefixed the stigma to the Tea-plant, and let the Potato 

 and Thorn-apple go scot-free. 



The Lathyrus tuberosus of modern British botanists is not 

 L. tuberosus of the Continental botanists. Our L. tuberosus is 

 synonymous with their Orobus tuberosus. Those who take charge 

 of nomenclature in Great Britain have combined the British 

 Orobi with the British Lathyri. We cannot detect Arabis hir- 

 suta in the Belgian Flora, and A. Turrita has a place among 

 the undisputed natives. Arabis hirsuta appears to be absent in 

 Belgium. 



We have another question with which we beg to trouble Mr. 

 Crepin, viz. the orthography of Thapsus and Thapsiforme ! On 



