302 POLYADELPHIA POLYANDRIA. [CL. XVIII. 



land, not uncommon in the west of Scotland and Ireland. Eng. Bot. 

 vol. xviii. pi. 1225. Eng. Fl. vol. iii. p. 323. 1095. 



3. H. quadrdngulum. Square St. John's-icort. Styles three; stem 

 herbaceous, acutely four-cornered ; leaves egg-shaped, with pellucid 



dots ; segments of the calyx lance-shaped. Root creeping : stems 



from one to two feet high, erect, leafy, with numerous leafy opposite 

 branches : leaves in pairs, sessile : petals yellow, generally streaked with 

 dark-purple. Perennial : flowers in July and August : grows in moist 

 meadows and hedges : common. Eng. Bot. vol. vi. pi. 370. Eng. Fl. 

 vol. iii. p. 324. 1096. 



4. H. perfordtwn. Perforated or Common St. John's-u-ort. Styles 

 three ; stem two-edged ; leaves elliptical, with pellucid dots ; segments 



of the calyx lance-shaped. Stem from one to two feet high, branched : 



flowers bright-yellow, dotted and streaked with dark-purple, in terminal 

 panicles : petals and calyx fringed with small black glands. This plant 

 has long held a place in the Materia Medica, being aromatic and stimu- 

 lant. The flowers tinge spirits and oils of a fine purple colour. Peren- 

 nial : flowers in June and July : grows in dry pastures, woods, and open 

 heaths : common. Eng. Bot. vol. v. pi. 295. Eng. Fl. vol. iii. p. 325. 



1097. 



5. H. ditbhim. Imperforate St. John't~wort. Styles three ; stem ob- 

 scurely four-cornered ; leaves elliptical, obtuse, without pellucid dots ; 



segments of the calyx elliptical. Stem from one to two feet high : 



flowers bright-yellow, in terminal panicles : petals and calyx dotted and 

 blotched with dark-purple. Perennial: flowers in July and August: 

 grows in rather mountainous woods : not common. Eng. Bot. vol. v. 

 pi. 296. Eng. Fl. vol. iii. p. 326. 1098. 



6. H. humifusum. Trailing St. John's-wort. Styles three ; stem com- 

 pressed, prostrate ; leaves elliptical, smooth ; segments of the calyx egg- 

 shaped. Stems branched, from six inches to a foot long : margins of 



the leaves with dark spots : petals and segments of the calyx more or less 

 fringed with black glands. Perennial : flowers in July : grows in pas- 

 tures and on dry heaths: not very common. Eng. Bot. vol. xviii. 

 pi. 1226. Eng. Fl. vol. iii. p. 326. 1099. 



7. H. montdnum. Mountain St. John's-wort. Styles three ; stem 

 erect, round, smooth ; leaves egg-shaped, smooth, embracing the stem ; 



calyx with glandular serratures. Stems about two feet high, simple, 



leafy : leaves small, sprinkled with small pellucid dots, their margins 

 with black glandular dots : petals pale-yellow : bracteas and calyx mar- 

 gined with black glands. Perennial : flowers in July : grows in hilly 

 places, in woods and thickets : not common. Eng. Bot. vol. vi. pi. 371. 

 Eng. Fl. vol. iii. p. 327. 1100. 



8. H. linearifotium. Linear-leaved St. John's-uort. Styles three ; 

 stem erect, procumbent below, round, smooth ; segments of the calyx 

 lance-shaped, with black spots and glandular serratures ; leaves linear, 



obtuse. Flowers rather large, yellow, in terminal cymes : leaves with 



the margins rolled back. Perennial : flowers in July and August : dis- 

 covered by Mr. Babington in Jersey, growing on the dry slopes of hills in 

 several parts of the islands. Brit. Fl. 4th ed. p. 282. Prim. Fl. Sarn. 

 p. 20. 1101. 



9. H. hirsutum. Hairy St. John's-wort. Styles three ; stem erect, 

 rounded, leaves egg-shaped, downy ; segments of the calyx lance-shaped, 



