Silver fern (Pityrogramma calomelanos)

akis perak or silver fern (Pityrogramma calomelanos) is a plant species in Pteridaceae, shrub fern, short and erect rhizomes, dark brown woody stems, grows in rocky or sandy soil, stems have smooth rhizomes, spread and are covered by side scales.

P. calomelanos has small cylindrical stems and fibrous roots. Black petiole. Single leaf is green, simple, pinnate or compound, jagged, pointed end and pinnate. Ental double pinnate, alternating and covered with silver flour.

Sexual reproduction uses spores in male and female gametes, while asexuals go through division. Three varieties recorded are Pityrogramma calomelanos var. aureoflava, Pityrogramma calomelanos ssp. austroamericana and Pityrogramma calomelanos var. calomelanos.

Silver ferns grow in open areas on rocky and sandy soils on slopes, often found on the banks of open or protected rivers, flourishing well on highlands up to 1200 meters. Generally live in tight or loose groups that cover an area.

Kingdom: Plantae
Phylum: Tracheophyta
Class: Polypodiopsida
Subclass: Polypodiidae
Order: Polypodiales
Family: Pteridaceae
Subfamily: Pteridoideae
Genus: Pityrogramma
Species: Pityrogramma calomelanos
Varieties: Pityrogramma calomelanos var. aureoflava, Pityrogramma calomelanos ssp. austroamericana, Pityrogramma calomelanos var. calomelanos

A deep-sea isopod Bathyopsurus nybelini adapted to feed submerged Sargassum algae

NEWS - Incredible footage shows a marine species, Bathyopsurus nybelini , feeding on something that sinks from the ocean’s surface. Researchers using the submersible Alvin found the isopod swimming 3.7 miles down using its paddle-like legs to catch an unexpected food source: Sargassum. Researchers from Woods Hole Oceanographic Institution (WHOI), the University of Montana, SUNY Geneseo, Willamette University and the University of Rhode Island found the algae sinking, while the isopod waited and adapted specifically to find and feed on the sinking nutrient source. The Sargassum lives on the surface for photosynthesis. The discovery of a deep-sea animal that relies on food that sinks from the waters miles above underscores the close relationship between the surface and the deep. “It’s fascinating to see this beautiful animal actively interacting with sargassum, so deep in the ocean. This isopod is extremely rare; only a handful of specimens were collected during the groundbreaking Swedis...

Blue pea (Clitoria ternatea)

Blue pea ( Clitoria ternatea ) is a species of plant in the Fabaceae family. It is a climbing herb with compound leaves, 5-7 leaflets, up to 12 cm long. The leaflets are oval to round, up to 4 cm long and 3 cm wide, and green. The flowers are blue and white, up to 5 cm long and 3.5 cm wide. The pods are up to 11 cm long and 1 cm wide. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Fabales Family: Fabaceae Subfamily: Faboideae Tribe: Phaseoleae Subtribe: Clitoriinae Genus: Clitoria L. in Sp. Pl.: 753 (1753) Species: Clitoria ternatea L. in Sp. Pl.: 753 (1753) HOMOTYPIC SYNONYMS Clitoria spectabilis Salisb. in Prodr. Stirp. Chap. Allerton: 336 (1796) Nauchea ternatea (L.) J.-T.Descourt. in Mém. Soc. Linn. Paris 4: 8 (1826) Ternatea ternatea (L.) Kuntze in Revis. Gen. Pl. 3(2): 72 (1898) Ternatea vulgaris Kunth in F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth, Nov. Gen. Sp. 6: 415 (1824) HETEROTYPIC SYNONYMS Clitoria albiflora Matte...

Pink poui (Tabebuia rosea)

Pink poui ( Tabebuia rosea ) is a species of plant in the Bignoniaceae, a small neotropical tree, growing up to 30 meters tall and up to 100 cm in diameter. It has layered and irregular branches, with gray to brown bark and vertical fissures. The leaves are compound, finger-shaped, five-petaled, length up to 33 cm, width up to 15 cm and long stalk up to 9 cm. The flowers are large, bright red or purple or white, fan-shaped, up to 9 cm long, up to 8 cm wide. The fruit capsule is slender and up to 35 cm long. The fruit dries and dehisces, producing anemochorous seeds with hyaline membrane wings. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Lamiales Family: Bignoniaceae Genus: Tabebuia Gomes ex DC. in Biblioth. Universelle Genève, n.s., 17: 130 (1838) Species: Tabebuia rosea (Bertol.) DC. in Prodr. 9: 215 (1845) HOMOTYPIC SYNONYMS Couralia rosea (Bertol.) Donn.Sm. in Bot. Gaz. 20: 9 (1895) Sparattosperma roseum (Bertol.) Miers in Proc....

Dlium