40 (39) Plants with opposite leaves and branches 41 



40 (39) Plants with alternate leaves and branches 49 



41 (40) Low creeping plants growing flat on the substrate 42 



41 (40) Erect plants, not flat on the substrate 43 



42 Ul) Spatulate-shaped leaves, usually in whorls at 

 the nodes; one-flowered pedicels form an 

 umbel at the nodes; plants usually weeds of 



waste places but growing on the beach 



Molluga verticillata, 



Carpet Weed 



Figure 44. — Stem and node with leaves 

 and flower umbel X2. 



42 (4i) Oblong linear to oblong lanceolate leaves two 

 at each node; milky juice; flowers in fork of 

 leaves; reddish color on leaves and stem; 



plants of beach and the dune hollows 



Euphorbia polygonifolia, 



Seaside Spurge 



Figure 45. — Stem and leaf nodes X2. 



43 (41 ) Erect plants with a square stem 



43 in) Erect plants with a terete or flattish stem. 



44 

 47 



21 



