Loop-root mangrove (Rhizophora mucronata)

Loop-root mangrove (Rhizophora mucronata) is a species of plant in the Rhizophoraceae, evergreen, 10-27 meters high, up to 70 cm in diameter, dark to black bark, cracked bark, horizontal, many large stilt roots with a height of up to 2 meters above mud and woody.

R. mucronata has leaves that sit opposite each other, collected at the ends of the twigs, the buds are covered in supporting leaves that are rolled up and pointed and are white or red in color, fall off quickly and leave scars similar to bulging rings. The leaves are elliptical, thick, smooth, green or yellowish, with a pointed tip, have a stalk, 12-24 cm long, 4-13 cm wide.

Flowers are grouped in additional umbrellas, stalked, forked in axils and 4-8 florets. The crown is white, with long hairs up to 9 mm. Flowers all year round. The fruit is egg-shaped, green-brown, 5-7 cm and viviparous. Cylindrical hypocotyl, large, rough, nodules and 36-70 cm long. The cotyledon neck is yellow when ripe.

This species tolerates hard and sandy substrates. More abundant in deeply flooded and humus-rich substrates in estuaries, tidal rivers, flat beaches which are exposed to tidal flooding every day. Sometimes it occurs as a pure stand or may grow with other species.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Malpighiales
Family: Rhizophoraceae
Genus: Rhizophora
Species: Rhizophora mucronata

Purwaceng (Pimpinella pruatjan)

Purwaceng or purwoceng or antanan gunung or Viagra of Java ( Pimpinella pruatjan or Pimpinella priatjan ) are small termas growing horizontally in Apiaceae, growing in villages on Dieng Plateau, Central Java Province, Indonesia, at 1,500 to 2,000 meters above sea level, the roots have medicinal properties for aphrodisiacs and are usually processed in powder form for a mixture of coffee or milk. P. pruatjan grows flat on the ground but does not propagate, small leaves are reddish green for 1-3 cm in diameter. This plant is only found in Java and grows in high mountain areas. A low population where industrial demand is very high results in increasingly scarce. Another place that is likely to become a purwaceng habitat is the Iyang Mountains and the Tengger Mountains in East Java Province. Efforts to multiply and cultivate have a big problem where these plants have difficulty producing seeds. In vitro propagation research through tissue cultivation has been carried out to overcome ...

Six new species forming the Sumbana species group in genus Nemophora Hoffmannsegg 1798 from Indonesia

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