Mandarin orange (Citrus reticulata)

Keprok or mandarin orange (Citrus reticulata) is plant species in Rutaceae, erect, sessile-elliptic leaves and do not have wings or small, small flowers, fruit has a medium size, the skin is easily speeled, the membrane is easily removed, the tip sometimes has a bun, small seeds, polyembrioni, cotyledons and green.

C. reticulata has a height of 2-8 meters, the stem has a round or half round shape, has a branching and has no thorns. Leaves have a stem with a length of 0.5-1.5 cm, have very narrow wings or no wings at all.

The leaves have an elongated, elliptical or lancet shape with a blunt base and a pointed tip like a spear. The upper surface is dark green and shiny, the lower surface is light green, 4-8 cm long and 1.5-4 cm wide.

Flowers have a diameter of 1.5-2.5 cm and a white crown. Ball-shaped fruit with a pressure of 5-8 cm long, 0.2-0.3 cm thick skin and orange flesh. Flowers are pollinated with the help of bees, self-pollinating or parthenocarpy.

Mandarin orange grows in the tropics and subtropics, optimal temperature is 25-30C, optimum humidity is 70-80%, altitude is 100-1300 m, fertile soil, loose, contains a lot of organic matter, high porosity with pH 5-6, rainfall 1500- 2,000 mm/year with 4-7 months rainy season and 4-6 months dry season.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Sapindales
Family: Rutaceae
Genus: Citrus
Species: Citrus reticulata

Thomas Sutikna lives with Homo floresiensis

BLOG - On October 28, 2004, a paper was published in Nature describing the dwarf hominin we know today as Homo floresiensis that has shocked the world. The report changed the geographical landscape of early humans that previously stated that the Pleistocene Asia was only represented by two species, Homo erectus and Homo sapiens . The report titled "A new small-bodied hominin from the Late Pleistocene of Flores, Indonesia" written by Peter Brown and Mike J. Morwood from the University of New England with Thomas Sutikna, Raden Pandji Soejono, Jatmiko, E. Wahyu Saptomo and Rokus Awe Due from the National Archaeology Research Institute (ARKENAS), Indonesia, presents more diversity in the genus Homo. “Immediately, my fever vanished. I couldn’t sleep well that night. I couldn’t wait for sunrise. In the early morning we went to the site, and when we arrived in the cave, I didn’t say a thing because both my mind and heart couldn’t handle this incredible moment. I just went down...

Black potato (Coleus rotundifolius)

Black potato ( Coleus rotundifolius ) is a species of plant in Lamiaceae, herbaceous, fibrous roots and tubers, erect and slightly creeping stems, quadrangular, thick, and slightly odorous. Single leaves, thick, membranous, opposite and alternate. Leaves are oval, dark green and shiny on the upper side, bright green on the lower side. Up to 5 cm long, up to 4 cm wide, slightly hairy and pinnate leaf veins. Leaf stalks up to 4 cm long. Small, purple flowers. Star-shaped petals, lip-shaped crown, dark to light purple with a slightly curved tube shape. Flowering from February-August. Small tubers, brown and white flesh and tuber length 2-4 cm. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Lamiales Family: Lamiaceae Subfamily: Nepetoideae Tribe: Ocimeae Subtribe: Plectranthinae Genus: Coleus Species: Coleus rotundifolius

Wild durian (Cullenia exarillata)

Wild durian ( Cullenia exarillata ) is a species of plant in the Malvaceae, a tall tree with smooth, greyish-white bark, peeling on older trees, a straight trunk, horizontal branches and often with a series of knob-like tubercles for flower and fruit attachment. C. exarillata has young branches and the underside of the leaves is covered with golden brown peltate or shield-like scales. The leaves are single, alternate, glabrous, glossy green on the upper side and covered with silvery or orange peltate scales on the underside. Hermaphroditic flowers are tubular and also covered with golden brown scales, 4-5 cm long and cream or reddish brown in color. Flowers have no petals, formed of tubular bracteoles and tubular calyxes, 5-lobed. Fruit is round, 10-13 cm in diameter, covered with thorns and clustered along the branches. Many seeds, reddish brown, 4-5 cm long and 2-3 cm wide. The seeds are enclosed by a fleshy, whitish aril. The fruit splits open when ripe and dries to release the s...

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