CL. XVIII.] POLYABELPSIA POLYANDRIA. 301 



prostrate : leaflets marked in the centre with an irregular dark 

 spot : flowers yellow. Annual : flowers in May and June : grows in 

 gravelly soil in the south of England. Eng. Sot. voLxxiii. pi. 

 1616. Eng. Fl. vol. iii. p. 319. 1091. 



4. M. minima. Little Bur Medick. Stalks many-flowered; stipules 

 half egg-shaped, nearly entire ; leaflets inversely egg-shaped, hairy ; 



legumes globular, with two rows of hooked prickles. Prostrate 



and silky: flowers yellow. Annual: flowers in June and July: grows 

 in sandy fields in England : rare. Eng. Fl. vol. iii. p. 321. 109:2. 



o. M. denticuldta. Reticulated Medick. Stalks few-flowered ; sti- 

 pules laciniate ; leaflets inversely heart-shaped ; legumes broad, 

 loosely spiral, flat, reticulated, the margin keeled, with a double 

 row of close-curved prickles. Annual : flowers from April to June : 

 grows on the coasts of Kent and Norfolk : rare. Discovered by the 

 Rev. G. E. Smith. Eng. Bot, Suppl. pi. 2634. Brit. Fl. 4th ed. 

 p. 280. 1093. 



CLASS XVIII. POLYADELPHIA. 

 Filaments united, forming more than two sets. 

 Order I. POLYANDRIA. Numerous Stamens. 



I, HYPE'RICUM. Calyx inferior, deeply divided into five seg- 

 ments. Petals five. Filaments united into three or five sets. 

 Capsule many-seeded. 



POLYADELPHIA. POLYANDRIA. 



1. HYPE'RICUM. ST. JOHN'S-WORT. 



Calyx inferior, of one leaf, deeply divided into five nearly 

 egg-shaped, concave, permanent segments. Petals five, egg- 

 shaped or oblong, obtuse, expanding, overlapping each other 

 laterally. Filaments numerous, hair-like, united at the base into 

 three or five sets ; anthers small, roundish. Germen superior, 

 egg-shaped. Styles varying from five to one, simple, distant ; 

 stigmas simple. Capsule roundish, with as many cells as there 

 are styles. Seeds numerous. Name, hypericon of Dioscorides. 



365. 



1. H, calycinum. Large-flowered St. Johns-wort. Styles five ; 

 flowers solitary ; stem woody, four-cornered, branched ; segments 



of the calyx inversely egg-shaped, obtuse ; leaves oblong. Root 



creeping : stems erect, twelve or eighteen inches high : leaves 

 leathery, ever-green, very shortly stalked : flowers golden-yellow. 

 A shrub : flowers in July and August : grows in bushy places : rare, 

 and not indigenous. Eng.Bot. vol. xxix. pi. 2017. Eng. Fl. vol. iii' 

 p. 323. 1094*. 



2. H. Androsee'mum. Tutsan. Styles three ; capsule pulpy ; stem 



woody, compressed ; leaves egg-shaped, sessile. Two or three 



feet high : flowers yellow, in terminal panicles : capsule purplish- 

 black. A shrub : flowers in July : grows in hedges and bushy 



2 C 2 



