Jonjing (Rhynchoglossum obliquum)

Jonjing (Rhynchoglossum obliquum) is a plant species in Gesneriaceae, annuals, 5-75 cm high, bald stems, slightly transparent green, has a purple ring boundary where one or two petioles grow, 0.5-1.5 cm long petiole and green.

R. obliquum has alternately arranged leaves, asymmetrical, one side is elliptical and the other side is ovoid, 4-12 cm long, 2-6 cm wide, rounded base, pointed tip, a curved main bone, pinned minor bones, the entire surface is choppy and green.

Small flowers lined for 10-30 florets in stems up to 12 cm long. Flowers have 2-5.5 cm stems and hairy. The petals are often blue, 3-8 mm, three lobes for 1-3 mm, corolla dark purple or blue and 8-11 mm long. Stamens for two strands, anthers 1 mm in size and almost parallel, pistils for 6.5 mm and hairy.

The flowering season in February-May, grows wild in shady places around waterways, rivers, cliffs in the forest, forest boundaries and around caves, altitude 100-2800 m and sometimes used as ornamental plants in pots and house yards for uniqueness leaf.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Lamiales
Family: Gesneriaceae
Subfamily: Cyrtandroideae
Tribe: Klugieae
Genus: Rhynchoglossum
Species: Rhynchoglossum obliquum

Screw tree (Helicteres isora)

Screw tree ( Helicteres isora ) is a species of plant in the Malvaceae family. It is a shrub or small tree, up to 8 meters tall. It has gray bark and alternate leaves, up to 22 cm long and 17 cm wide, oval in shape, with serrated edges and hairs. The flowers are red or white and reach a total length of 5.5 cm. The fruit is green when unripe, brown or gray when dry, twisted, spiral-shaped, and pointed at the tip. The seeds are black or brown, shiny, and diagonal, triangular, or rectangular. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Malvales Family: Malvaceae Subfamily: Helicteroideae Tribe: Helictereae Genus: Helicteres Pluk. ex L. in Sp. Pl.: 963 (1753) Species: Helicteres isora L. in Sp. Pl.: 963 (1753) HETEROTYPIC SYNONYMS Helicteres baruensis var. ovata DC. in Prodr. 1: 476 (1824) Helicteres chrysocalyx Miq. ex Mast. in J.D.Hooker, Fl. Brit. India 1: 365 (1874) Helicteres corylifolia Buch.-Ham. ex Dillwyn in Rev. Hortus Malab....

Breng (Coldenia breng)

Breng ( Coldenia breng ) is a species of plant in the Boraginaceae family. It is a herbaceous plant that grows along the ground, with radial, cylindrical stems, red, multi-branched, alternate, and white-haired. C. breng has alternate leaves along the stem, oval to nearly round, up to 2.5 cm long, up to 1.5 cm wide, and white-haired. This plant grows in floodplains, seasonally inundated riverbanks, and drying rice fields. It thrives in sandy or silty soils and is drought-tolerant. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Boraginales Family: Boraginaceae Subfamily: Cordioideae Genus: Coldenia L. in Sp. Pl.: 125 (1753) Species: Coldenia breng Aryo Bandoro Dlium TheDlium YouTube: https://www.youtube.com/@Dlium

The oldest drawing specimen collection, Balaenoptera physalus Linnaeus, 1758 (OBS.296787995)

BLOG - Before the invention of photography, everything was explained by hand drawings that required naturalists to be able to draw to describe the specimens they documented. Scholars from taxonomy to medicine had to be able to sketch leaves to the human heart, this is why the academic world at that time had the subject of "art and science". A tradition that taxonomic drawings are accompanied by a measurement scale usually by placing a measuring tool in millimeters or centimeters or inches that supports scientific sketches has an identification context, but of course there are obstacles to having to document large specimens. I found a picture of a large specimen: Balaenoptera physalus (Linnaeus, 1758). Uniquely, the specimen with catalogue number: OBS.296787995 and stored at the Observation International, Aarlanderveen, Netherlands, is the oldest I have ever known. The shabby drawing with three folds and worn edges was made in 1547 or more than 500 years old. Previously I ...

Dlium