What is the form of sale for palms and trees according to Article 590 in the legal statement?
The form of sale for palms and trees is determined based on the appearance of spadixes or buds and blossoms. If palms that have split spadixes or trees with appeared buds and blossoms are sold, the seller retains ownership until harvest time. Anything sold prior to that belongs to the purchaser. The seller's oath regarding the appearance or splitting is given preference as evidence.