Variegated croton (Codiaeum variegatum)

Puring or variegated croton (Codiaeum variegatum) is a species of plant in Euphorbiaceae, shrubs, evergreen, monoecious, cosmopolitan, leaves have very varied shapes and colors, are widely cultivated as ornamental plants and have hundreds of varieties.

C. variegatum grows to a height of 3 m, large evergreen leaves, thick, leathery, shiny, arranged alternately, 5-30 cm long and 0.5-8 cm wide. Strands can be ribbon, lanceolate, oval, elliptical, inverted ovoid and violin-shaped. Colors can be green, yellow, purple and in various patterns.

The petiole is 0.2-2.5 cm long. The inflorescences are racemes, 8-30 cm long, the male is white with five small petals and 20-30 stamens, the pollen is oval and 52x32 microns in size. The female flowers are yellowish. The fruit is a capsule, 9 mm in diameter, three seeds with a diameter of 6 mm.

Several hundred cultivars are selected and bred for foliage. Milk sap can cause eczema in some people. The bark, roots, sap and leaves are poisonous. The toxin is the chemical compound 5-deoxyingenol. This plant contains oil and is suspected as a carcinogen.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Malpighiales
Family: Euphorbiaceae
Subfamily: Crotonoideae
Tribe: Codiaeae
Subtribe: Codiaeinae
Genus: Codiaeum
Species: Codiaeum variegatum
Forms and varieties: Codiaeum variegatum f. angustifolium, Codiaeum variegatum var. cavernicola, Codiaeum variegatum f. crispum, Codiaeum variegatum var. genuinum, Codiaeum variegatum var. moluccanum, Variegated Croton Codiaeum variegatum var. pictum

Javan broadhead planarian (Bipalium javanum)

Cacing palu or Javan broadhead planarian ( Bipalium javanum ) is a species of animal in Geoplanidae, hermaphrodite, living on the ground, predators, often called only hammerhead or broadhead or shovel worms because of wide heads and simple copulatory organs. B. javanum has a slim stature, up to 20 cm long, up to 0.5 cm wide, head wide up to 1 cm or less, small neck, widening in the middle and the back end is rounded, all black and shiny. Javan broadhead planarians walk above ground level by raising their heads and actively looking left, right and looking up using strong neck muscles. Move swiftly, track meander, climb to get through all obstacles or make a new path if the obstacle is too high. Cacing palu track and prey on earthworms and mollusks. They use muscles and sticky secretions to attach themselves to prey to lock in. The head and ends of the body are wrapped around and continue to close the body to stop prey reactions. They produce tetrodotoxins which are very strong...

Swietenia mahagoni and Swietenia macrophylla, the differences

SPECIES HEAD TO HEAD - To date, mahogany ( Swietenia Jacq.) is recorded as having four species: West Indian mahogany or small-leaved mahogany ( Swietenia mahagoni (L.) Jacq.), big-leaf mahogany ( Swietenia macrophylla King), Honduran mahogany ( Swietenia humilis Zucc.) and Swietenia × aubrevilleana Stehlé & Cusin. The debate over the number of taxa in the genus is still not resolved. Some researchers believe that there are only two species: S. mahagoni and S. macrophylla . I agree with that opinion and the two species can only be differentiated by the size of the leaves. All species in this genus have similar morphology except for leaf size. The following is the key to identifying these two species. S. mahagoni has a stalk length of around 37 cm with 5-6 pairs of strands. The strands are about 10 cm long and about 3.5 cm wide. S. macrophylla has a stalk length of up to 45 cm with 4-5 pairs of strands. The strands are up to 31 cm long and up to 8 cm wide. By Aryo Bando...

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...

Dlium