Rhizophora × lamarckii is a hybrid of Rhizophora apiculata

Rhizophora apiculata

Rhizophora apiculata is a species of plant in the Rhizophoraceae family. It is found in Australia , Guam, India, Indonesia, Malaysia, Micronesia, New Caledonia, Papua New Guinea, the Philippines, Singapore, the Solomon Islands, Sri Lanka, Taiwan,Maldives Thailand, Vanuatu, and Vietnam.Rhizophora...

and Rhizophora stylosa . Found in the Indo-West Pacific

Indo-West Pacific

The Indo-West Pacific, or IWP, is a zoogeographical region spanning the entire Indian Ocean including the Red Sea and the Pacific Ocean as far as the Caroline Islands but short of the Marshall Islands...

 region within the Indomalaya

Indomalaya

The Indomalaya ecozone is one of the eight ecozones that cover the planet's land surface. It extends across most of South and Southeast Asia and into the southern parts of East Asia....

 biome

Biome

Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems. Some parts of the earth have more or less the same kind of abiotic and biotic factors spread over a...

 in the Sunda Shelf mangroves

Sunda Shelf mangroves

The Sunda Shelf mangroves ecoregion, in the Mangrove Biome, are on the coasts of the islands of Borneo and eastern Sumatra in Malaysia and Indonesia...

 ecoregion

Ecoregion

An ecoregion , sometimes called a bioregion, is an ecologically and geographically defined area that is smaller than an ecozone and larger than an ecosystem. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural...

, the hybrid is widespread and shares many characters of its parents .

Description

The tree grows up to 25 m in height. The bark is gray with fissures. Leaf blade is obovate elliptic with light green midrib and dense black dots at under surface. Leaf apex has a clear mucronate spike and leaf stalk is 2-3 cm long. Inflorescence is branched 1-2 times with 2-4 buds borne on short peduncle. Petals are white and slightly hairy with style 2-3 mm long.

Chemistry

Analysis using reversed phase high performance liquid chromatography

High performance liquid chromatography

High-performance liquid chromatography , HPLC, is a chromatographic technique that can separate a mixture of compounds and is used in biochemistry and analytical chemistry to identify, quantify and purify the individual components of the mixture.HPLC typically utilizes different types of stationary...

 showed that there was great similarity in chemical constituents of leaves of the hybrid compared to those of its parents (Chan & Wong, 2009). Peak areas were intermediate in R. lamarckii with higher values in R. stylosa and lower values in R. apiculata. One of the compounds identified in the leaves of the hybrid and its parents was rutin

Rutin

Rutin, also called rutoside, quercetin-3-O-rutinoside and sophorin, is a citrus flavonoid glycoside found in buckwheat, the leaves and petioles of Rheum species, and asparagus...

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