This study indicated the presence of different shapes and sizes of grains starch in
Milky liquid (latex) for 10 speciec of genus euphorbia these:
, E.geniculata , E.pilulifera , E. serpens, E.prostrata , E. thamnoides
E. paralias , E. terracina, E
. aleppica , E. peplus, , E. helioscopia
which varied between: (Rod) ,(Spindle), (Slightly osteoid), (Osteoid), (Dumb-blle),
(Ostcoid branched), intermediate forms with indentation and accessories , pollen grains
werw: spherical, or oval-shaped 3-colporate, It is of the Euphorbia hirta- type , and
Ornamentation Tectum coarsely reticulate in (E.geniculata) only, and fine reticulate in the
others species , and size of a Pollen grains differed between species .The largest size
found in E. geniculata (P= 46.21mμ , E = 44.68 mμ)For spherical shape and (P =42.56 =
m μ, E =37.54 mμ )For elongated shape.The smallest size found in E.pilulifera (P=16mμ ,
E 15.62 =mμ)For spherical shape and (P = 17.68 m μ, E13 .12 =mμ ) For elongated
shape.
