RUBI AND ROS^E OF THE CHANNEL ISLANDS. 293 



occurs in Sark, and at Petit Bot Bay, Guernsey (unknown thus far in 

 Britain), with terminal leaflet subrotund and strongly cordate. 



R. rhombifoliUS, Weihe. Guernsey : Fermain Bay. 



R. ArgentatUS, P. J. Muell. Guernsey : One of the most abundant 

 brambles in the island ; generally distributed, but variable. Jersey : 

 Fauvic, Waterworks Valley, Pont Marquet. Abundant in places, but 

 apparently not so general as in Guernsey. Brittany : La Garaye, near 

 Dinan. Normandy : Hill above La Bouille. 



Var. robustus (P. J. Muell). Here, rather than under the type, 

 appear to belong forms that occur at Cobo, near St. Martin's Church, 

 Fermain Bay, and St. Sampson's, in Guernsey, and near Coutances, in 

 Normandy ; but the range of variation is considerable and somewhat 

 bewildering. A very handsome plant occurring in good quantity in 

 Waterworks Valley, Jersey, Dr. Focke thinks is his R. macrostemon, 

 though it differs from the German plant in its more luxuriant and diffuse 

 panicle. It seems to go off from R. robustus towards R. danicus, Focke, 

 while on the whole best placed perhaps in the Biscolores group. 



DISCOLORES. 



R. Rustieanus, Merc. Very common in the islands and on the French coast 

 opposite them, and at least as variable as in England. 



SILVATICI. 



R. maCPOphyllUS, Wh. $ N. Jersey : Deep lane, Bouley Bay ; a shade 

 form. Brittany : La Garaye, near Dinan. Normandy : Moulineux, wood 

 border. 



Var. macrophylloides, Genev. Guernsey : rather frequent : St. 

 Sampson's, St. Martin's, Fermain Bay. Sark : Very fine and remarkably 

 abundant, apparently more so than all the other brambles in the island 

 put together. Dr. Focke considers this "very near R. ScMechtendalii." 

 It seems best to regard it as a strong and highly glandular form of that 

 variety. In England thus far found only in Monmouthshire and South 

 Devon with certainty, though a rather similar form has been gathered in 

 west Gloucestershire and Salop. 



R. Questierii, Left. $ Muell. Jersey : Val des Vaux, the locality in which 

 this species was discovered by the Bev. Augustin Ley several years ago. 

 Elsewhere in the islands we searched for it in vain, though it is probably 

 not confined to this one Jersey locality, as it seems remarkably abundant 

 on the French coast. Brittany : La Garaye and near Lehon, in plenty. 

 Normandy : Coutances and elsewhere ; Moulineux, abundant. 



R. Sprengelii, Weihe. Guernsey : Fermain Bay. Jersey : Anne Port and 

 Bouley Bay. Quite typical in both islands. 



R. mieans, Gren. $ Godr. Jersey : Gorey and Anne Port. Brittany : La 

 Garaye, abundant. Normandy : Certainly one of the commonest 

 brambles, and usually identical with Genevier's own specimens of his 

 adscitus and our typical south-west England form. 



R. leuCOStaehys, Schleich. As an aggregate species abundant in Guernsey 

 and Jersey, though usually in an untypical form. Seen also on Sark. 

 Brittany : What seems a form of this at La Garaye. Normandy : 

 Moulineux. 



Var. angustifolius, Rogers. Guernsey : Fermain Bay. Jersey : Pont 

 Marquet, Anne Port, Rozel. Normandy : Moulineux. Nearly allied to 

 R. leucostachys, and considered by Dr. Focke to be also "near 

 R. argyranthus, Boul. & Luc," are plants which occur in some quantity 

 at Norgiots, Guernsey, and at Bouley Bay, Jersey ; but these demand 

 further study. 



