221 



XVIII. POLYADELPHIA. 



1. POLYANDRIA. 



1. HYPERICUM. Cal. 5 -partite. Pet. 5, Filaments many, 

 united at the base, in 3 5 bundles. Caps, many-seeded, 

 superior. 



1. POLYANDRIA. 



1. HYPERICUM. 



* Styles 5. 



1. H. calydnum (large-flowered St* Mm's-wort), styles 5, 

 flowers solitary, segments of the cal. unequal obovate obtuse, 

 leaves oblong," stein shrubby branched square. E. B. t. 2017. 



HAB. Woods above Largs, perfectly indigenous, Hopk. This is a 

 native of Greece, not at all of the intermediate country, France j and 

 I fear not really wild in any part of Britain. Fl. July Sept. If. . 



Flowers very large, yellow. Bundles of stam. 5. A common orna- 

 ment in shrubberies. 



* Styles 3. 



j* Cal. segments entire at the margins. 



2. H. Androscemum (Tutsan), styles 3, capsule pulpy, stem 

 shrubby compressed, cal. leaflets unequal, leaves ovate sessile. 

 Lightf. p. 415. E. B. 1. 1225. 



HAB. Woods, l/ut not very common. At Inverary, and at Loch 

 Ransa in the Isle of Arran, Lightf. It appears to be not uncommon 

 on the western side of Scotland, though I have no stations indicated 

 in the eastern parts. Fl. July. If. . 



Two feet high. Leaves large. Cymes of rather large, yellow flowers, 

 terminal. Berry black. 



3. H. quadrangulum (square St. John's-wort), styles 3, stem 

 herbaceous 4-angtilar somewhat branched, leaves ovate with 

 pellucid dots, cal. leaves lanceolate. Lightf. p. 416. E. B. 

 f.3/0. 



HAB. Moist pastures, sides of ditches and rivulets. Fl. July. I/. 

 One foot high. Panicles terminal. 



4. H. perforatum (perforated St. John's -wort), styles 3, stem 

 compressed, leaves elliptico-oblong obtuse with pellucid dots, 

 cal. leaves lanceolate. Lightf. p. 416. E. B. t. 295. 



HAB. Woods, thickets and hedges. Fl. July. If.. 

 One foot to two feet or more high, branched. There are minute 

 black glands on the tips of the calyx, corolla, and often in the leaves. 



5. H. dullum (imperf orate St.' John's-wort), stem obsoletely 

 quadrangular, leaves elliptical-ovate obtuse destitute of pellu- 

 cid dots, cal. leaves elliptical. E. B. t. 296. 



