48 



VARIOUS FOOD-PLANTS 



Fig 



-. y 



37.^Pea (Pisum sativum, 

 Pulse Family, Leguminosce) . 

 Plant in flower and fruit, much 

 reduced. (Nicholson.) — T h e 

 jilant is an annual, climbing by 

 means of tendrils which termi- 

 nate the leaves; stem and leaves 

 pale green, smooth and covered 

 with a delicate " bloom " which 

 easily rubs off; fl()wers, white, 

 bkiish, i)urjjlish, or "\'ariegated. 

 ;]S.— Pea. .1. flower. B, the 

 sanie liah'cfl. B' , curnWii, with 

 petals se]>aratrd, showing 

 standard (r), wirigs ('/, a), and 

 keel (c). (", the stamen-tube 

 and ])istil, enlarged. D, pistil. 

 E, \j<id sherlding secf.ls. F, a 

 sei'd, showitig stalk (/), ]j]ace 

 of minute opening, the nii- 

 eropyle, through which mois- 

 ture penetrates (m), raphe or 

 ridge (r) and chalaza or end 

 of ridge (c) ; G, embryo, laid 

 open, showing cotyledons or 

 seed-leaves (c), radicle or seed- 

 root (r), caulicle or seed-stem 

 (0. and plumule or seed- 

 bud {{)). (Wanning.) 



