****  R  **** Rachis: axis of pinnate leaf. Rays: the stalk of an umbel. Reticular: marked with a network of veins. Recurved: bent backwards in a curve. Rhombic: See Fig. C5. Ridges: raised crest/elevation. Rugulose: wrinkled.

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Online Guide To Umbelliferae Of British Isles' By J.M.Burton Copyright 2002