Botanical Society of Edinburgh. 435 



In this communication the author gave an account of several Hieracia 

 found by him in the Highlands of Scotland as well as in Teesdale. 

 He stated that the plant which he had formerly noticed as H. Oreades 

 proved, on minute comparison with Swedish specimens, to be H. saxi- 

 fragum (Fries). It grows in the ravine of the White-water at the 

 head of Glen Dole, Clova, on the eastern slope of Cairntoul, and also 

 in Teesdale. During a highland excursion last summer the author 

 found abundance of H. atratum (Fries), and a few specimens of the 

 true H. nigrescens (Fries), of which plant Fries states he has never 

 seen authentic British specimens. From careful comparison of Tees- 

 dale and Scotch specimens of H. iricum (Fries) and H. ceritithoides, 

 Mr. Backhouse is inclined to consider the former (as Dr. Arnott 

 suggests) to be a luxuriant form of the latter, slightly changed in 

 character from growing on mica-slate, or basalt. The amplexicaul 

 or semi-amplexicaul character of the cauline leaves is inconstant 

 (sometimes they are nearly sessile), and the acuteness or bluntness of 

 the involucral scales is variable. Last autumn he gathered, in Tees- 

 dale, a plant which agrees well with H. crocatum var. angustatum 

 (Fries). It flowers much later than H. crocatum latifolium (the 

 ordinary form) with which it grows, but is out of flower many weeks 

 sooner. The form of the leaves is very remarkable. Mr. Backhouse 

 is cultivating both, in the hope of ascertaining if there is any true di- 

 stinctive character. The following species have been gathered in 

 Teesdale : — H. gothicum. Fries, H. crocatum and its var., dilatum. 

 Fries, H. corymbosum, Fries, H. saxifragum, Fr., H. tridentatum, 

 Fr. The author is continuing his researches, on the subject of the 

 British Hieracia, and he will be glad to receive specimens even of 

 the common species, addressed to him at York. 



3. "On the Berwickshire station for Anacharis Alsinastrum," by 

 Dr. Johnston. 



Dr. Johnston writes, " As regards the Anacharis, my tale is this : 

 For thirty years and more I have herborized in that part of the White- 

 adder where the plant is now common. For some years I was ac- 

 companied in my searches by Dr. Philip Maclagan, and the speci- 

 mens of Potamogeton in my herbarium were principally collected in 

 a place now choked up with Anacharis. Mr. Henderson, surgeon 

 in Chirnside, has also often and again and again, and season after 

 season, botanized in this river, and never saw the plant until I drew 

 his attention to it. Now, I maintain that it was impossible the plant 

 could have escaped our notice had it been there. It is no pigmy — 

 in fact it is a plant that attracts notice. 



" When first I found the Anacharis in the Whiteadder, I could 

 discover only two or three tufts of it. I was fishing and follovdng 

 the water : I could see no more of the plant anywhere near. Now, 

 however, the place is actually full of it ; last year they had to get 

 iron rakes to clear it away, and cart-loads were drawn out. So at 

 Whitehall I found it first in only one creek, but there abundantly. 

 When I wrote to Mr. Henderson he was incredulous, for the very 

 spot was one he knew as the locality of other plants. He not only 

 got the Anacharis there the following summer, but he found it in 

 several places adjacent. Now, from Whitehall to Gainslaw Bridge 



