Rubber tree (Hevea brasiliensis)

Rubber tree (Hevea brasiliensis) is a plant species in Euphorbiaceae, a tree height of 15-25 m, but in the wild up to 43 m, a large trunk, grows straight and has a high branching above. The stem of this plant contains milk sap which is extracted as the main source of natural rubber.

H. brasiliensis has a cylindrical rod, brown and the inner skin secretes latex if injured. The leaves have three leaflets, arranged in a spiral, elliptical, elongated with a tapered tip, flat edge and bare. The main leaf stalk has a length of 3-20 cm and a minor leaf stalk for 3-10 cm.

Male and female flowers are separate, yellowish and have no petals. The fruit is a capsule that contains three and six seeds according to the amount of space, blackish brown with typical patterned spots and explosively open when ripe.

Rubber trees need a tropical or subtropical climate with a minimum rainfall of 1,200 mm per year and no frost. Tapping is one of the main activities of exploitation of this plant by opening the latex vessels in the bark of the tree so that it can flow quickly.

Latex flow velocity will decrease if the dose of latex liquid on the skin decreases. Rubber skin with a height of 260 cm from the ground surface is a tapping area for income over a period of about 30 years. Tapping must be done carefully so as not to damage the skin and rubber production will be maintained.

Clones are descendants obtained by vegetative propagation of a plant where the characteristics of the plant are exactly the same as the parent. The clones recommended for use when grafting and planting superior seeds by the Indonesian government are GT1, PR107, PR228, PR261, PR300, PR255, PR303, AVROS 2037, and BPMI.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Malpighiales
Family: Euphorbiaceae
Subfamily: Crotonoideae
Tribe: Heveae
Genus: Hevea
Species: Hevea brasiliensis

Redflower ragleaf (Crassocephalum crepidioides)

Sintrong or ebolo or thickhead or redflower ragleaf ( Crassocephalum crepidioides ) are plant species in Asteraceae, terma height 25-100 cm, white fibrous roots, generally grow wild on the roadside, yard gardens or abandoned lands at altitude 200- 2500 m. C. crepidioides has erect or horizontal stems along the soil surface, vascular, soft, non-woody, shallow grooves, green, rough surface and short white hair, aromatic fragrance when squeezed. Petiole is spread on stems, tubular and eared. Single leaf, spread out, green, 8-20 cm long, 3-6 cm wide, longitudinal or round inverted eggshell with a narrow base along the stalk. Pointed tip, flat-edged or curved to pinnate, jagged rough and pointed. The top leaves are smaller and often sit. Compound flowers grow throughout the year in humps that are arranged in terminal flat panicles and androgynous. Green cuffs with orange-brown to brick-red tips, cylindrical for 13-16 mm long and 5-6 mm wide. The crown is yellow with a brownish red...

Fivefingers (Syngonium angustatum)

Donglimo or fivefingers ( Syngonium angustatum ) is species in Araceae, epiphytes, grow to climb large trees up to 20 meters high, produce milky sap, dark green, internodes up to 50 cm long, petioles up to 35 cm long, green and live in areas tropical. S. angustatum has roots in the soil to absorb nutrients and air roots that grow in each segment to attach themselves to a support. Wild plants that live in forests often cause trees to be uprooted by heavy loads. The main stem produces a row of stems, up to 60 cm with the ends of a group of leaves with 3-7 separate leaflets, but connected by horizontal stems. The middle leaf has a length of up to 25 cm and a width of up to 12 cm. The flower has a veil, round in shape and a pointed tip, green and facing up with a stalk up to 15 cm long. The head of the pistil is tubular, stands 3-5 cm long and is white. The fruit is in a veil, rounded with a pointed tip and green when young to turn bright red when ripe and grow on the tip of the ...

Li chun horned toad (Boulenophrys lichun) makes mating calls in spring from rock crevices in Ningde City

NEWS - Researchers report Li chun horned toad ( Boulenophrys lichun sp. nov.) from the coastal hills of eastern Fujian Province, China, that differs from all known relatives by a combination of morphological character differences and genetic divergence in the mitochondrial 16S + CO1 gene pool. During a field survey in eastern Fujian, researchers collected a series of Boulenophrys specimens Fei, Ye & Jiang, 2016. Initial morphological examination indicated that the specimens differed from their known relatives by a series of distinct characters. Subsequent molecular analysis further revealed that these specimens represent a separate evolutionary lineage, showing significant differences from their known relatives. Therefore, the researchers describe it as a new species. B. lichun is small in size (SVL 33.5–37.0 mm in 5 adult males, SVL 47.1 mm in 1 adult female); rostra canthus well developed, tongue not notched posteriorly; tympanum distinct; vomerine ridge and vomerine teeth pres...

Dlium