Thespesia is a genus of 18 floweringshrubs and trees in the "Hibiscus" family, Malvaceae, although within the family they are more closely related to cotton plants ("Gossypium").
 The genus is distributed from the South Pacific through Asia, Africa, and the Caribbean.
An institutional investor is an entity which pools money to purchase securities, real property, and other investment assets or originate loans.
 Institutional investors include banks, insurance companies, pensions, hedge funds, REITs, investment advisors, endowments, and mutual funds. Operating companies which invest excess capital in these types of assets may also be included in the term.
 Activist institutional investors may also influence corporate governance by exercising voting rights in their investments.
 Although institutional investors appear to be more sophisticated than retail investors, it remains unclear if professional active investment managers can reliably enhance risk adjusted returns by an amount that exceeds fees and expenses of investment management.
A commodity pool is an investment structure where many individual investors combine their moneys and trade in futures contracts as a single entity in order to gain leverage.
 They are analogous to mutual funds wherein a fund is similarly set up expressly for trading in equity, except that mutual funds are open to public subscription whereas commodity pools and hedge funds are private.
A business entity is an entity that is formed and administered as per corporate law in order to engage in business activities, charitable work, or other activities allowable.
 Most often, business entities are formed to sell a product or a service.
 There are many types of business entities defined in the legal systems of various countries.
 These include corporations, cooperatives, partnerships, sole traders, limited liability company and other specifically permitted and labelled types of entities.
 The specific rules vary by country and by state or province.
 Some of these types are listed below, by country.
 For guidance, approximate equivalents in the company law of English-speaking countries are given in most cases,
In computer programming, a declaration is a language construct that specifies properties of an identifier: it declares what a word (identifier) "means:."
 Declarations are most commonly used for functions, variables, constants, and classes, but can also be used for other entities such as enumerations and type definitions.
 Beyond the name (the identifier itself) and the kind of entity (function, variable, etc.), declarations typically specify the data type (for variables and constants), or the type signature (for functions); types may also include dimensions, such as for arrays.
 A declaration is used to announce the existence of the entity to the compiler; this is important in those strongly typed languages that require functions, variables, and constants, and their types to be specified with a declaration before use, and is used in forward declaration.
 The term "declaration" is frequently contrasted with the term "definition", but meaning and usage varies significantly between languages; see below.
In the Standard Generalized Markup Language (SGML), an entity is a primitive data type, which associates a string with either a unique alias (such as a user-specified name) or an SGML reserved word (such as codice_1).
 Entities are foundational to the organizational structure and definition of SGML documents.
 The SGML specification defines numerous entity types, which are distinguished by keyword qualifiers and context.
 An entity string value may variously consist of plain text, SGML tags, and/or references to previously-defined entities.
 Certain entity types may also invoke external documents.
 Entities are called by reference.
In mathematics and computer science, mutual recursion is a form of recursion where two mathematical or computational objects, such as functions or data types, are defined in terms of each other.
 Mutual recursion is very common in functional programming and in some problem domains, such as recursive descent parsers, where the data types are naturally mutually recursive, but is uncommon in other domains.
Thespesia populnea, commonly known as the Indian tulip tree, Pacific rosewood, or Portia tree , is species of flowering plant in the mallow family, Malvaceae.
 It is a small tree or arborescent shrub that has a pantropical distribution, found on coasts around the world.
 However, the Portia tree is probably native only to the Old World, and may have originated in India.
 Nowadays, its wood is mainly used in making furniture because of its good ability to undergo carving.
 The wood from the tree was used by early Tamil people to make instruments in ancient Tamilakam.
 It is possibly indigenous to the Hawaiian Islands and elsewhere in the Pacific, but may have been spread by early Polynesians for its useful wood and bast fibres.
 The Portia tree reaches a height of 6 - tall and a trunk diameter of 20 - .
 It grows at elevations from sea level to 275 m in areas that receive 500 - of annual rainfall.
 The Portia tree is able to grow in the wide range of soil types that may be present in coastal environments, including soils derived from quartz (sand), limestone, and basalt; it favours neutral soils (pH of 6–7.4).
Spathiphyllum is a genus of about 40 species of monocotyledonous flowering plants in the family Araceae, native to tropical regions of the Americas and southeastern Asia.
 Certain species of "Spathiphyllum" are commonly known as Spath or peace lilies.
An entity–relationship model (ER model) describes inter-related things of interest in a specific domain of knowledge.
 An ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between instances of those entity types.

Question: Spathiphyllum and Thespesia, are types of which mutual entity?
Answer: plants