90 



298. Enlarged model of the flower and fruit of the 

 pink (Dianthus p lumarius). 



Made by Montaudon (late Dr. Auzoux), Paris. 

 E. 1. 1889. 



The calyx can be drawn out from the surrounding bracts, and 

 the inner floral organs again from it. Two of the petals and 

 three of the stamens are also movable, to show the pistil. One 

 of the styles and part of the wall of the ovary may then be 

 lifted out to expose the ovules within. The fruit splits longi- 

 tudinally to show the ripe placenta and s the black irregularly - 

 shaped seeds attached to it. 



299. Enlarged model of a part of a plant of the wild 

 stock (Matthiola incana). 



E. 140. 1874. Made by the late Dr. Auzoux, Paris. 



The model shows several buds in different stages of develop- 

 ment. In the complete flower the calyx swings back on 

 hinges, and two of the petals and two of the long stamens can 

 be removed to show the arrangement of the floral organs. The 

 ripe pod can be opened down one side to show the contained 

 seeds. 



300. Enlarged model of a portion of the plant of the 

 sweet pea (Lathyrus odoratus). 



E. 139. 1874. Made by the late Dr. Auzoux, Paris. 



The model shows several leaves with tendrils and a partly 

 opened bud, as well as a fully expanded flower. The calyx of 

 this last can be removed, as well as the petals, the carina being 

 separable into two portions. The odd superior stamen can be 

 taken out by itself and the [fused stamens in -a piece, leaving 

 the pod-shaped pistil in the centre. 



301. Enlarged model of the unripe pod of pea 

 (Pisum sativum). 



Made by Montaudon (late Dr. Auzoux), Paris. 

 E. 1. 1891. 



The wall is partly dissected away to show the vascular system 

 in it, and the pod opens showing the minute structure of the 

 ovules at the time of fertilization. The pollen tubes are shown. 



302. Enlarged model of the ripe pod of pea. 



Made by Montaudon (late Dr. Auzoux), Paris. 

 E. 2. 1891. 



The pod opens showing the seeds, one of which itself opens to 

 show the seminal envelopes and embryo. 



