16. HYPERICACE/E. 247 



, ■■■. 216. Hypericum dubium, Leers. 



'^' //' 216,b. Hypericum maculatum, Crantz. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 ;,, 15 16. 



South limit in Cornwall, Hants, Sussex. 



North limit in Fifeshire and the Isle of Arran. 



Estimate of provinces 15. Estimate of counties 50. 



Latitude 50 — 57. English type of distribution. 



Agrarian region. Tnferagrarian — Snperagrarian zones. 



Descends to the coast level, in tlie Peninsula. 



Ascends to 300 yards in province of Tyne. 



Range of mean annual temperature 51 — 45. 



Native. Septal. Finding it quite impossible for me to 

 distinguish the localities recorded . for these two alleged 

 species, severally from each other, I am compelled to treat 

 them as one. Nor, indeed, can I distinguish the two as 

 species, in a satisfactory manner. It appears to me that 

 almost all the specimens which 1 have received under 

 either of these names (including with them the AiTan spe- 

 cimens, said to be true H. dubium) belong to the species 

 figured under the name of " dubium " in English Botany, 

 plate 296. Among the exceptions, are two or three ex- 

 amples of H. perforatum, as I should have labelled them ; 

 as also two other rather puzzling specimens, with a calyx 

 of an intermediate character, but, on the whole, appearing 

 more near to H. perforatum than to H. dubium. One of 

 these two was received from the Botanical Society of Edin- 

 burgh, and is labelled as H. maculatum, from Raith'woods, 

 Fifeshire, communicated by Mr. W. W. Evans. The 

 other was obtained from the Botanical Society of London, 

 and is located from Coniston, in the Lake province, com- 

 municated by Miss Beevor ; this specimen having broader 



