276 APPENDIX. 



CALYX inferior, polysepalous, deciduous ; sepals 4, lanceolate, 

 anterior and posterior gibbous at base. 



COROLLA cruciate, yellow or reddish brown : petals clawed, 

 limb obovate, claw linear. 



STAMENS tetradynamous, erect ; filaments filiform ; anthers 

 lanceolate, 2-celled, introrse, dehiscing longitudinally. 



PISTIL syncarpous, superior ; 0z/#>j linear, slightly compressed, 

 spuriously 2-celled : style terminal, short ; stigma 2-lobed ; 

 ovules indefinite, parietal. 



FRUIT a linear siliqua ; seeds indefinite, pendulous, com- 

 pressed, exalbuminous ; embryo with a curved accumbent 

 radicle. 



GARDEN PEA. Pisum sativum. 

 CLASS Dicotyledons. Division Calycifloraj. 



A weak climbing annual herb, with alternate stipulate com- 

 pound leaves ending in tendrils, and irregular (papilionaceous) 

 flowers. 



ROOT fibrous, branched. 



STEM weak, climbing, slightly branched, glabrous. 



LEAVES cauline, alternate, pinnate (bi- tri- jugate), terminating 

 in tendrils (metamorphosed leaflets) ; leaflets slightly ovate, 

 glabrous, glaucous ; stipules foliaceous, ovate-cordate, slightly 

 crenate. 



FLOWERS large, irregular (papilionaceous), in 2 3-flowered, 

 axillary, pedunculate racemes. 



CALYX gamosepalous, 5-toothed, bilabiate, persistent. 



COROLLA papilionaceous, white; vexilhun large, broadly ob- 

 cordate, erect ; alee roundish, converging, shorter than the com- 

 pressed, curved carina. 



STAMENS perigynous, decandrous, diadelphous ; filaments 

 subulate above ; anthers 2-celled, dehiscing longitudinally. 



PISTIL monocarpellary ; ovary superior, oblong, compressed, 

 l-celled ; style terminal, subfalcate ; stigma simple ; ovules few, 

 attached to the ventral suture. 



FRUIT a legume ; seeds few (3 9), globose, exalbuminous, 

 with a coriaceous, glabrous testa. 



COMMON HERACLEUM. Heraclcum Sphondylmm. 

 CLASS Dicotyledons. Division Calyciflorae. 



A coarse erect hairy herb, with fistular stem, much-divided 

 leaves with dilated sheathing petioles, and small white flowers in 

 terminal compound umbels. 



