272 DICOTYLEDONS. ACERACE/E. 



1. HYPERICUM. 



CaL 5-partite. Pet. 5. Filaments united at the base into 3 .5 

 bundles. Styles 23 5. Stigmas as many. Cells of the 

 fruit 235. 



* Styles 5. 



1. H. calycinum, styles 5, flowers solitary, segments of the 

 cal. unequal obovate obtuse, leaves oblong, stem shrubby 

 branched square, p. 221. Woods. 



+- Styles 3. 

 f Cal. segments entire at the margins. 



2. H. Androscemum, styles 3, capsule pulpy, stem shrubby com- 

 pressed, cal. leaflets unequal, leaves ovate sessile, p. 221. 

 floods. 



3. H. quadrangulum, styles 3, stem herbaceous 4-angular some- 

 what branched, leaves ovate with pellucid dots, cal. leaves 

 lanceolate, p. 221. Pastures. 



4. H. perforatum, styles 3, stem compressed, leaves elliptico- 

 oblong obtuse with pellucid dots, cal. leaves lanceolate, p. 22 1 . 

 Woods. 



5. H. dubium, stem obsoletely quadrangular, leaves elliptical 

 ovate obtuse destitute of pellucid dots, cal. leaves elliptical. 

 p. 221. Woods. 



6. H. humifusum, styles 3, flowers terminal subcymose, stems 

 compressed prostrate, leaves oblong obtuse glabrous, p. 222. 



Gravelly pastures. 



ft Margins of the segments of the cal. fringed with glandular serra- 

 tures. 



I . H. montanum, styles 3, flowers paniculato-corymbose, cal. 

 with glandular serratures, stem erect rounded smooth, leaves 

 ovate glabrous, p. 222. Mountainous ivoods. 



8. H. larlatum, styles 3, corymbs terminal, cal. fringed with 

 long pedunculated glands, stem erect rounded, leaves ovate 

 with (black) scattered dots beneath, p. 222. Woods. 



9. H. hirsulum, styles 3, cal. with (black) glandular serratures, 

 stem erect rounded pubescent, leaves ovate slightly downy be- 

 neath, p. 222. Woods ajid thickets. 



10. H. pulchntm, styles 3, cal. with (black) glandular serra- 

 tures, stem erect, leaves cordate glabrous amplexicaul. p. 222. 



Woods and heaths. 



II. H. elodesj styles 3, cal. with (reddish) glandular serratures 

 glabrous, leaves roundish pubescent, stem rounded creeping. 

 p. 223. Bogs. 



ORDER LI, ACERACE^E. Juss. 



Cal. mouophylloua. Pet, definite, rarely none, inserted round 



