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prpm mengare
Tumu-tumu

Mangroves

Tumu-tumu

Bruguiera cylindrica

IUCN: LC

Tumu-tumu (Bruguiera cylindrica) is a mangrove of the family Rhizophoraceae recorded in the biodiversity data of PRPM Mengare.

It is one of 22 species in the group “Mangroves” recorded at the site, and one of 10 species of the family Rhizophoraceae.

How to recognise it

Form
Small to medium tree, 3–15 m tall, straight trunk, grey-brown bark.
Roots
Clear knee roots looping up out of the mud.
Leaves
Opposite, elliptic to oblong, 5–12 cm; glossy green, pointed tip, black dots underneath (typical of Bruguiera).
Flowers
Single flowers in the leaf axils; small greenish-white flowers with a cylindrical calyx tube of 8–12 lobes.
Fruit & seed
Slim cylindrical hypocotyl, 8–15 cm long, often hanging before it drops.

Did you know?

The name “cylindrica” comes from its straight, slim hypocotyl. This propagule sprouts on the tree, can float and travel with the tide, then lodges in the mud. The species usually grows on tidal riverbanks and in sheltered mangroves.

Video from the site

Quick facts

Scientific name
Bruguiera cylindrica
Indonesian name
Tumu-tumu
Family
Rhizophoraceae
Group
Mangroves

Conservation status

IUCN Red List
Least Concern

Learn more

Supported by
Danantara IndonesiaPupuk IndonesiaPetrokimia GresikTJSL Petrokimia Gresik
Managed by
Pokmaswas Tanjung WidoroPokdarwis Tanjung Widoro
Programme development partners
Agrie ConservationEcosains IndonesiaGresik Naturalist