In the embryos of a typical dicot and a grass, true homologous structures are

1. Coleorrhiza and coleoptile

2. Coleoptile and scutellum

3. Cotyledons and scutellum

4. Hypocotyle and radicle


 

(c) A typical dicotyledonous embryo consists of two cotyledons. 

Page 35, XII NCERT