Arum - naming a Group

Diane Whitehead
Sun, 08 Apr 2007 09:19:08 PDT
  John Grimshaw described three instances where a Group name is used  
for plants.

Who decides that a Group name is appropriate?  In the case of a genus  
with a regulating body, must it be done officially?  Could a nursery  
owner or an enthusiastic amateur decide to name one?

Diane Whitehead

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