152 ENGLISH BOTANY. 



to represent a third species, H, maciilatum, though the plant 

 intended by Professor Babington under that name is doubtless a 

 form of H. dubium, with the sepals narrower than usual. The 

 pellucid network formed by the veins of the leaves in tliis species 

 is the best character by which to separate it from H. perforatum, 

 but it can generally be recognized by tlie broader leaves destitute 

 of pellucid dots, by the broader and blunter sepals which are 

 spreading, or even reflesed in fruit, by the rather smaller flowers, 

 the shorter capsule with styles shorter in proportion, by the valves 

 having more tlian 2 longitudinal vittse, and by the stem with 4 raised 

 lines instead of only 2. 



Imperforate St. John's Wort. 



French, Millepertuis BonXeux. German, Vierkantujes Harthen. 



^ SPECIES VII.— HYPERICUM TE TR APTERUM. Fries. 



Plate CCLXX. 



Jleich. Ic. Fl. Germ, et Helv. Vol. VI. Ihjp. Tab. CCCXLIV. Fig. 5179. 



Fries, Nov. Fl. Suec. ed. ii. p. 236. Koch, Syn. Fl. Germ, et Helv. ed. ii. p. 147. 



Gr. & Godir. Fl. de Fr. Vol. I. p. 314. 

 IT. quadrangulum, "Linn" Sm. Eng. Bot. No. 370. Bab. Man. Brit. Bot. ed. v. 



p. Gl. Hook, (fe Am. Brit. Fl. ed. viii. p. 81. Benth. Handbook Brit. Fl. p. 134. 



Hootstock woody. Stems slightly woody and rooting at the 

 base, stout, erect, paniculately branched, marked with 4 longi- 

 tudinal elevated lines, each of which is raised so as to form a 

 narrow wing which is most apparent towards the top of the stem. 

 Leaves broadly oval or oblong-oval, entire at the margins, those 

 of the main stem semi-amplexicaul at the base, all with pellucid 

 dots and with all the nerves and veins pellucid, forming a network 

 when viewed against the light. Flowers numerous, in compact 

 cymes arranged in a small dense corymb or contracted panicle. 

 Sepals elliptical-lanceolate, acuminate, with subulate points, entire, 

 generally without black glands. Petals pale yellow, concolorous, 

 with only a few black dots round the margin. Styles 3, shorter 

 than the capsule. Capsule with each valve having numerous vittai 

 on the back. 



In wet places by the sides of ditches, etc. Common, and gene- 

 rally distributed except in the extreme North of Scotland. 



England, Scotland, Ireland. Perennial. Late Summer. 



This species is readily distinguishable from II. dubium by the 

 stem having 4 wings instead of 4 merely raised lines, a compact 

 inflorescence and also by the much smaller flowers, which are 

 about ^ inch across and pale yellow ; the sepals are also much more 



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