BOTEYCHIUM EUTACEUM. 321 



application of Swartz's earlier name of rutaceum : for my part, 

 I entirely agree with Willdenow's decision on this subject, for 

 there is nothing in Swartz's brief description at all at variance 

 with "Willdenow's plant. The distinction between the two may 

 be very briefly stated. In the plant now under consideration, 

 and which I call rutaceum, the stipes is long, and undivided 

 nearly to its summit, as in lunaria. In matricarioides the 

 barren branch is given off at the base, the stalk of the panicle 

 having the appearance of the stipes of the frond. Agaia, in 

 rutaceum, the pinnee are linear or sublinear ; in matricarioides 

 they are deltoid, and the whole barren branch closely resembles 

 the leaf of Anemone nemorosa. 



Botrychium rutaceum is the " Lunaria minor foliis dissectis " 

 of Ray, (Rail Syn. 129). It will be seen by a reference to the 

 3rd edition of the ' Synopsis,' that Lawson thought the plant a 

 variety of B. lunaria, but that Dillenius, the able editor, rejects 

 the idea as untenable. Sir J. E. Smith makes it a variety, 

 without hesitation : and the learned authors of the ' British 

 Flora,' and of the ' Manual of British Botany,' do not notice 

 its existence. 



Botrychium rutaceum is found in all the northern countries 

 of Europe and Asia ; and a very similar species occurs in 

 North America. 



In this country, Smith speaks of it as found occasionally, 

 intermixed with plants of the common form. Ray gives West- 

 moreland as a county where it occurs ; and says that Doody 

 received his specimen from Sir Thomas Willughby, " but hath 

 since seen it several times gathered by our herb-women." Mr. 

 Cruickshank says, in a note : — "I found it on the Sands of 

 Barry, near Dundee, in August, 1839. I observed but three 

 specimens, all of them exactly alike, excepting a small difference 

 in size, and I could find none of the common form of the plant 

 growing near them." Mr. Cruickshank sent me a drawing, 

 which I did not at the time recognise as representing the pre- 

 sent species: a carefully accm-ate engraving of this will be 



found at page 324. 



2 T 



