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excursion last snrcmer 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 Teesdale and Scotch specimens of H. 

 iricum, Fries, and H. cerinthoides, Mr. Backhouse is inclined to con- 

 sider the former (as Dr. Arnott suggests) to be a luxuriant /orw^ of the 

 latter, slightly changed in character from growing on mica-slate or 

 basalt. The amplexicaul or semi-amplexicaul character of the cau- 

 line leaves is inconstant (sometimes they are nearly sessile), and the 

 acuteness or bluntness of the involucral scales is variable. Last 

 autumn he gathered in Teesdale a plant which agrees well with H. 

 crocatura, var. angustatum (Fries's ' Monograph'). It flowers much 

 later than H. crocatura, laiifolium (the ordinary form), with which it 

 grows, but passes over many weeks sooner. The form of the leaves is 

 very remarkable. Mr. Backhouse is cultivating both, in the hope of 

 ascertaining the distinctive character, if any, thoroughly. The fol- 

 lowing species have been gathered in Teesdale : — H. gothicum. Fries, 

 H. crocatura and its var., H. dilatatum, Fr., H. corymbosum, Fr., H. 

 saxifragura, Fr., H. tridentatura, Fr. The paper was illustrated by a 

 complete series of native and cultivated specimens, which had been 

 kindly transmitted for inspection. 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. 



3. On the Berwickshire Station for Anacharis Alsinastrum. By 

 Dr. Johnston.' Dr. Johnston writes, " As regards the Anacharis, ray 

 tale is this : — For thirty years and more I have herborized in that 

 part of the Whiteadder where the plant is now common. For some 

 years I was accompanied in my searches by Dr. Philip Maclagan, and 

 the specimens of Potaraogeton in ray herbarium were principally col- 

 lected 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 following 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 T found it 

 first in only one creek, but there abundantly. When I wrote to Mr. 



