Phaeophyta merupakan salah satu kelompok makroalga yang tersebar melimpah di zona intertidal. Alga makrobentik ini memiliki struktur talus yang terdiri atas bagian holdfast, stipe, dan blade. Kelompok tersebut memiliki kandungan warna yang disebut pigmen fukosantin. Metode yang digunakan adalah road sampling dengan melakukan penyusuran seluruh area sampling menggunakan GPS (Global Positioning System). Jenis-jenis alga yang ditemukan diidentifikasi dan dideskripsikan secara morfologi. Analisis komposisi jenis dilakukan secara deskripsi kualitatif . Hasil yang diperoleh yaitu terdapat empat jenis Phaeophyta yang terdiri atas Sargassum sp., Padina australis, Spatoglossum sp., dan Turbinaria ornata. Jenis-jenis yang ditemukan umumnya memiliki karakteristik morfologi holdfastnya bentuk cakram dan lempeng, stipe pendek, serta blade berupa lembaran dan silindris.Kata Kunci: Pantai Pancur, Phaeophyta, Struktur Morfologi, Zona intertidal

Induction of somatic embryogenesis in sugarcane requires the composition Plant Growth Hormone (PGH) appropriate. Utilizing of PGH (2,4-D and kinetin) is expected to induce sugarcane somatic embryogenesis. The purpose of this study was to obtain the concentration of 2,4-D and kinetin that effective for the multiplication of sugarcane var. NXI 1-3 through somatic embryogenesis. This study consists of four stages: callus induction, callus proliferation, regeneration of shoots and encapsulation. The plant material used is a spindle leaf sugarcane var. NXI 1-3. Callus induction used 2,4-D with different concentration (2 ppm, 3 ppm and 4 ppm). Callus proliferation used 2,4-D with concentration 1 ppm and 2 ppm. Regeneration of shoots used kinetin 0,5 ppm. The results are showed that the optimal induction of embryogenic callus on medium MS + sucrose 30 g / L + CH 300 ppm + 300 ppm PVP + 2,4-D 4 ppm as indicated by the high percentage of explants forming embryogenic callus that is equal to 40% and the respective concentration 2 ppm and 3 ppm is 33,3% and 37,5%. In proliferation stage, the development callus optimal on medium MS + sucrose 30 g / L + CH 300pm + PVP 300 ppm + 2,4-D 2 ppm and formulations for regeneration shoot on medium MS + sucrose 30 g / L + kinetin 0.5 ppm. The result of encapsulation can be shaped 100 sythetic seed.

Tumbuhan anggrek dikenal sebagai tumbuhan hias, selain itu juga berpotensi sebagai obat diantaranya adalah Dendrobium linearifolium Teijs & Binn., Bulbophyllum odoratum (Blume) Lindl., dan Vanda tricolor Lindl. Khasiat obat pada tumbuhan adalah karena adanya metabolit sekunder, antara lain alkaloid dan flavonoid. Penelitian ini bertujuan untuk menentukan kandungan alkaloid dan flavonoid pada tiga spesies anggrek berpotensi obat dari kawasan Gunung Gumitir Kabupaten Jember. Sampel ketiga spesies anggrek dipisahkan antara batang, pseudobulb dan daunnya kemudian dikeringanginkan dan dihaluskan sampai mendapat serbuk. Serbuk anggrek di ekstraksi dan diuji secara kuantitatif dengan spektrofotometri. Rata- rata kandungan alkaloid dan flavonoid tertinggi terdapat pada daun. Kandungan alkaloid tiga tertinggi berturut-turut adalah daun Dendrobium linearifolium Teijsm. & Binn. (43,84 mgBE/g), pseudobulb dan daun Bulbophyllum odoratum (Blume) Lindl. (21,91 mgBE/g) dan (18,01 mgBE/g, sedang terendah daun Vanda tricolor Lindl (9,35 mgBE/g). Kandungan flavonoid tertinggi terdapat pada daun Dendrobium linearifolium Teijsm. & Binn. (219,59 mgQE/g) diikuti daun Bulbophyllum odoratum (Blume) Lindl. (132,21 mgQE/g) dan daun Vanda tricolor Lindl. (122,69 mgQE/g) dan terendah batang Dendrobium linearifolium Teijs & Binn (56,26 mgQE/g).

Cyclosorusparasiticus(Linn.) Farwell is one potential medicinal ferns. The plant contains secondary metabolites, such as flavonoids and alkaloids. This study aims to determine the flavonoid and alkanoidofCyclosorusparasiticus (Linn.) Farwell in three plantation areas of  Jember Regency. Plant samples were collected from Mount Gumitir coffee plantations, Pine Garahan Village and rubber and cocoa plantations in Tancak in Jember. Samples of stems  and leaves were dried at room temperature and then blended to obtain a powder. One gram of powder samples was macerated in 90 ml of methanol for 3x24 hours then was concentrated with an evaporator to obtain a crude extract. The crude extract was tested qualitatively for flavonoids and alkaloids by the Willstätter and Dragendorff methods followed by quantitatively tests with Spectrophotometric. The results showed thatboth flavonoids and alkaloids were found in stem and leavesof Cyclosorusparasiticus (Linn) Farwell growing at three research locations. The flavonoids and alkaloidsin content found in leaveswas higher than those in stem organs. The leaves of Cyclosorusparasiticus (Linn) Farwell in Gumitir contain the highest flavonoids and alkaloidscontentsthan those in Tancak.

Epiphytic orchids and ferns in urban forests simulating a lowland tropical forest ecology were studied. This study aims to provide information about the epiphytes' adaptation to living in a dynamic microclimate of the tree canopy. Five epiphytes from the two taxa (orchids and ferns) were observed in their stomatal structure and chlorophyll contents. The stomatal type, size, and density were analysed with microscopic observation. The chlorophyll content was measured using a spectrophotometer. The orchids developed different mechanisms for water conservation compared to the ferns. Orchis develop smaller sizes and denser stomata to support photosynthesis rate as they had water absorbers and storage organs. On the other hand, ferns tend to avoid drought stress by developing fewer numbers and sparse stomata. The higher chlorophyll content in ferns was for photosynthesis efficiency purposes