848 



tence above quoted just reverses the statement of Fries, and utterly 

 destroys its logical propriety by doing so. We have specimens 

 from Surrey, Lanarkshire and Aberdeenshire, which possibly may be- 

 long to the 13. peltatum. 



Ranunculus Lenormandi {F. W. Schultz) is adopted of a species, 

 and the variety " grandiflorus " of the former edition is quoted as a 

 synonym, although there is a discrepancy which we cannot reconcile 

 therewith ; namely, the alleged " broad " petals of grandiflorus ; for 

 those of Lenormandi are so narrow in projDortion to length, as to 

 give a radiate or starry appearance to the flower. The normal con- 

 dition of Lenormandi, like that of aquatilis or hederaceus, is floating; 

 its stems are creeping where left dry. The contrast with hederaceus 

 is too strongly drawn, in comparing the relative length of calyx and 

 petals ; for those of R. hederaceus frequently, if not usually, exceed 

 the calyx, and are sometimes full twice as long. 



Barbarea arcuata [Reich.) is cashiered from its rank as a species 

 and reduced into a variety of B. vulgaris. We presume that the 

 characters of distinction, drawn from the different shape of the seeds, 

 in the former edition, were found erroneous, as they are not repeated. 

 The specific character of B. vulgaris is expressed in such manner as 

 to convey a totally diff"erent meaning from that which is intended. 

 In the Manual it runs thus: "lower leaves lyrate: upper pair of 

 lobes as broad as the large roundish subcordate terminal lobe." Such 

 is not the fact; the upper lobes being less than half as broad as the 

 terminal lobe. The length of the upper lobes, measured from tip to 

 tip, across the leaf, equals the breadth of the terminal lobe ; and the 

 author should therefore have written, " upper pair of lobes equalling 

 the breadth of the terminal lobe." The character is taken fi-om 

 Koch's Synopsis, but so translated as to change that author's mean- 

 ing, and to state the fact incorrectly. 



Erysimum cheiranthoides and E. virgatum, in the former edition, 

 were alike marked as species " possibly introduced, but now having 

 the appearance of being a true native." We think it was the 

 author of the Manual himself who caused the introduction of E. vir- 

 gatum into lists of British plants : and it may therefore be worth 

 while to observe that, in the second edition, E. cheiranthoides is 

 given as a true native, while E. virgatum is to be expunged from our 

 catalogues, being no longer found about Bath, and having been 

 " probably introduced accidentally." It is doubtless at times a mat- 

 ter of nice judgment to decide whether a newly observed species 

 should be received or rejected in our lists of native and naturalized 



