276 



MANUAL OF BOTANY 



Sub-order 1. Pleurorliizecp. (Q "= )• — Cotyledons accumbeiit, 

 flat ; radicle lateral. Illustrative Genera : — Cheiranthus, 

 Linn. ; Arabis, Linn. 



Sub-order 2. NotorhizecE (Q || ). — Cotyledons incumbent, flat ; 



Fig. 1042. 



Fig. 1043. 



Fig. 1044. 



Fig. 1045. 



Fig. 104G. 



Firj. 1041. Sporopluils of the Warflower (Cheiranthus Gheiri). r. Tha- 

 lamus. (//.Glands! ecTetradynamous stamens. 5/?'. Stigmas. /'7f/. 1042. 



An unripe si'.iqua of the Wallflower, with one of the valves removed to 



show the replum and the stalkel pendulous seeds. Fig. Iu43. The sili- 



cula of Shepherd's Purse (C ips'llu Bursn-pastoris) in the act of dehiscing, 

 showuig the stalked pendulous seeds. Fig. 104L Siliculaof the Scurvy- 

 grass (Cochlearia offici7vtlis) in the actof dehiscing. Fig. 1045. The em- 

 bryo of Buiiias orientalis. Fig. 1046. The embryo of the Cabbage plant 



(Brassica oleracea). 1. Undivided. 2, Horizontal section, r. Radicle. 

 c. Cotyledons. 



radicle dorsal. lUustrative Genera : — Hesperis, Linn. ; 

 Isatis, Linn. 

 Sub-order 3. OHhojjlocece ( Q ^ ). — Cotyledons conduplicate, 

 longitudinally^ folded in the middle ; radicle dorsal, within the 

 fold. Illustrative Genera : — Brassica, L /????. ; Raphanus, Linn. 



