FKUITS AND SEEDS. 



255 



parchment-like membrane which forms around the wall 



of each chamber of the ovary 



is mainly carpellary in origin, j 



the "pips" being of course i>X .WING 



the seeds. Pomes also occur 



in Rowan, Hawthorn, Quince, 



Medlar. 



Examine, dissect, and sketch 

 the fruits of Apple, Pear, Quince, 

 Medlar, Rowan, Hawthorn, 

 Cotoneaster. 



284. Splitting or Sepa- 

 rating Fruits (Schizo- 



carps) are so called because 



they split into two or more 



one- seeded parts (akenes or 



nuts). Examples are seen in 



Sycamore and Maple (Fig. 



93, B), Umbellifers (Fig. 



136), Geranium (Fig. 93, D), 



the Labiate and Borage 



families (Fig. 93, c), Mallow 



(Fig. 94). 

 In some Leguminosae (e.g. 



Hedysarum, the " French 



Honeysuckle") and some Crucifers (e.g. Radish) the fruit 

 splits across into one-seeded pieces, 

 and is called a lomentum (more 

 strictly, a lomentaceous pod, or sili- 

 qua, as the case may be), Fig. 93, A. 

 The one-seeded parts into which a 

 schizocarp splits do not usually open 

 to let the seed out ; but this does 

 occur in some cases e.g. Spurges, 

 Geranium. 



CARPOPHORE 



Fig. 93. Schizocarpe splitting into 

 several Pieces. 



A, of Hedysarum ; B, of Maple ; C, of 

 Lamium ; D, of Geranium. 



Fig. 94. Schizocarp of 

 Mallow. 



Examine and sketch the fruits of Syca- 

 more, Maple, Cow Parsnip, Geranium, 

 Mallow, Dead-nettle, Forget - me - not, 

 Radish, "French Honeysuckle" (ffedysarum, cultd.), Spurge. 



