HYPERICACE^. 125 



gin. Sepals lanceolate, acuminate, subulate, considerably longer 

 than the petals. 



In watery places. Perennial ; July, August. 



H. dubium. Leers. — H. quadr angular e, Lin. 1104, Wahlen., 

 Fries. Imperforate St. John''s-wo7't^^^^E.B.^^6. i^B.s. 216. 

 "" A. 15. C. 50. Lat. 50-57°. Alt. 0-300 yds. Tern. 51-45°. 



Stems stouter, and with more rounded sides and less pi^ominent 

 wings than H. quadrangulwn. Leaves oblong-ovate, without 

 transparent dots, but with transparent secondary nerves, as in H. 

 quadrangulum ; upper leaves more or less downy beneath. Sepals 

 ovate, obtuse, or sharp, scarcely half the length of the corolla, 

 ridged at the base. Capsule ovate, triangular at the apex. — The 

 most obvious distinction between these two plants is in the sepals. 

 In our specimens they are not much reflexed, nor are they marked 

 with black dots. 



In moist, grassy places, in woods and other shady places. Per.; 

 July, August. 



H. humifusum, Lin, Trailing St. John's-wort. — e.b. 1226. 

 L.B.S. 218. 



A. 16. . C. 75. Lat. 50-58°. Alt. 0-150 yds * Tern. 52-46°. 



Stems slender, nearly filiform, prostrate, rarely erect, usually 

 branched, glabrous. Leaves oblong, with a few transparent dots 

 in the interior, and several black dots close to the margin. Flowers 

 solitary (mostly so), terminal or cymose. Sepals oblong, pointed 

 or blunt, and dotted at the margin. Petals obscurely dotted. 

 Capsule bluntly 3-angular. 



Moist pastures. Perennial ; Jidy-September. 



H. linearifolium, Vahl. Linear -leaved St. John's -wort. — 

 E.B. 2851. L.B.S. 219. 



A. 1. C. 3. Lat. 50-51°. Alt. 0- ? yds. Tern. 52- ?°. 



Stems erect or ascending, simple, nearly cylindrical, glabrous. 

 Leaves linear -obtuse, reflexed ? at the margin, half-clasping, with 

 prominent lateral nerves, without pellucid dots. Flowers in a lax 

 corvmb, on pedicels which are longer than the calyx. Sepals 

 lanceolate, acute, with glandular fringes at their tips. Capsule 

 as in H. pulchrum. 



In Jersey, Cornwall, and Devon. Perennial; July-Sept. ? 



This species resembles H. humifusum in its general aspect and 

 habit, only its flowers are rather larger. 



* Does not this plant attain a greater elevation in Scotland ? 



