HYPERICACE^. 59 



124. H. dubium, Leers. Imperfoliate St. John^s Wort. 



Native ; on the banks of rivers and streams ; and more rarely on 

 hedge-banks. Very rare and local. July, August, 

 c. I. Four or five plants on a hedge-bank between two marshes in the 

 Notter Valley, a little below Clapper Bridge ; and six or seven 

 between the mill-stream and the river, in the same neighbour- 

 hood, 1869. 

 II. " "Weir, Tamar, Cornwall s;^. Hore^'' Wats, in ep. ; Keys, Fl. ii. 

 63. Several plants opposite Morwellham Quay, 1874. Four 

 on the side of an elevated hedge-bank near Dupath, a mile 

 from Callmgton, 1879. 

 D. III. By the Tamar near Wheal Russell Mine ; three roots seen on 



the river-bank and one in a marsh. 

 • In a list of Dartmoor plants drawn up by the late Dr. E. Moore, of 

 Plymouth, and appended to Howe's Perambulation of Dartmoor, the 

 name of this Hypericum occurs. The list contains many erroneous 

 statements, and probably one of the other species was mistaken by Dr. 

 Moore for this. 



125. H. tetrapterum, Fries. Square-stalked St. John^s Wort. 



Native ; by streams, ditches, and in other damp places. Very 

 common. July to September, 

 c. I. St. Stephens. Sconner. Tideford. Seaton Valley. 



II. Tregantle. Millbrook. Halton, 

 D. III. Plymouth and Saltash Road. Honicknowle. Warleigh Wood. 

 IV. Plympton ; Keys, Fl. ii. 61. General just around Plymouth. 



Saltram. Egg Buckland. Lovaton. 

 V. Wembury. Revelstoke. Dunstone. Yealm Valley. 

 VI, Kingston. Holbeton. Modbury. Pamflete. 

 Begins to flower a little later than H. perforatum, but earlier than R. 

 h(Eticum. 



126. H. boeticum, Boiss. Waved-leaved St. JoJm^s Wort. 



Native ; about bogs in copses, in rushy or bushy swamps, by 

 springs, and on the banks of streams. Rare and local, though 

 widely scattered. July to September, 

 c. I. In plenty in a swamp in a large wood above a tributary of the 

 Seaton River, between Treloy farm-house and Seaton Sands. 

 Rather plentiful in the Notter Valley near Clapper Bridge 

 and between that and Pillaton ]\Iill ; also occurrmg in consider- 

 able quantity in a damp marshy enclosure by a tributary of 

 this river below Viverdon Down, and less plentifully between 

 St. Mellion and Pillaton. Very sparmgly about the Torpomt 

 and Liskeard Turnpike road at Sconner. 



