Rules for publishing a new name:
1. effective publication--must be distributed in a publication available to other botanists.
2. valid publication:
- a. Name must be properly constructed (in Latin) and not a name ever used before by another botanist.
- b. Rank of taxon must be clearly indicated.
- c. A specimen must be designated as the holotype (applies to any description since 1958).
- d. A Latin description or diagnosis must accompany the name (any name since Linnaeus must have a description; since 1935, must be in Latin).