You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Does Roystonea or Dionysia have more species?" whose answer is Dionysia.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Roystonea species
Useful Output:

Doc 1: Most species of Roystonea are widely known as royal palms. They are cultivated worldwide and are especially favored as avenue trees. Long
Doc 2: Roystonea regia, commonly known as the Cuban royal palm or the Florida royal palm is a species of palm which is native to Mexico and parts of Central America
Doc 3: The royal palm is a large, majestic palm that is native to south Florida and Cuba. It is considered cold hardy to about 28°F or USDA Cold Hardiness Zone 10A.
Doc 4: Roystonea regia var. hondurensis is listed as Critically Endangered under criteria C2a.
Doc 5: It is a very abundant species and is naturalized far outside of its range. The species is distributed across multiple countries including