PENTANPRIA MONOGYNIA. 327 



TETRAGYNIA 



152. PARNASSTA. Calyx 5-parted, persistent ; pet. 6, inferior; nec- 

 tary of 5 scales, inserted into the claws of the petals, fringed with 

 capitate ciliae ; stigmas 4, sessile ; caps. 1-celled, 4-valved ; valves 

 bearing incomplete dissepiments in the middle; seeds membrana- 

 ceously margined. 



PENTAGYNIA. 



. *i. ARALIA. Flowers umbelled ; calyx 5-toothed, superior ; pet. 5 ; 



stigma sessile, subglobose ; berry 5-celled, 5-seeded. 

 JS4 STATICE. Calyx inferior, 1-leaved, entire, plaited, scarious; pet. 



5; caps. 1 -seeded, without valves, covered with the persistent calyx. 

 155. LINUM. Calyx deeply 5-parted, persistent ; pet. 5, unguiculate; 



f.1. united at the base; caps, superior, subglobose, 10-valved, 10- 

 seeds solitary, ovate, compressed. 



HEXAGYNIA. 



156. DEOSERA. Calyx deeply 5-cleft, persistent; pet. 5; anther ad- 

 nate , ttylcs 6 ; caps, superior, 3-celled 3 5-valved, many-seeded. 



MONOGYNIA. 



species. 88 LITHOSPERMUM. Gromwell. 



L. arvense : tem erect, branched ; leaves linear-lanceolate, rather 



acute, veinlesg, hairy; calyx nearly as long as the corolla, with 



spreading segments ; seeds rugose. 

 HAB. Fields. Apr. May, <g>; hispidly pilose, 812 in. high- 



Jlowers solitary, axillary, small, white. 

 L. afficinale : stem erect, much branched ; leaves lanceolate, acute, 



nerved, scabrous above, hairy beneath ; calyx as long as the tube of 



the corolla ; seeds smooth. 

 HAB. May, 1J.; stem 2 feet high, scabrous -fl. axillary, solitary, 



pedicell., pale yellow. 



89. ONOSMODIUM. 



O. hispidum: plant hispid; leaves obovate lanceolate, papillose-punc 

 tate ; segments of the corolla subulate. 

 29 



