In this article we will discuss about the fossil anglosperms of a plant. The fossil remains of true angiosperms are found only in the later geological periods and as a group they are more modern than other vascular plants. The fossil history of Angiosperms is too short to enable us to approach a definite conclusion. The palaeobotanical record of this [...]
Learn about the comparison between Magnoliaceae and Annonaceae. Comparison # Magnoliaceae: 1. Leaf of Magnoliaceae is thick and stipulate. 2. Flower of Magnoliaceae are large and gaudy. 3. Perianth is outer whorl green or petaloid. 4. Aestivation is imbricate. 5. Androecium Anthers are introse, filaments short or absent. 6. Fruit of Magnoliaceae are etaerio or follicles or drupes. 7. Endosperms [...]
Learn about the comparison between Brassicaceae and Papaveraceae. Comparison # Brassicaceae (Cruciferae): 1. Leaves of Brassicaceae is simple or dissected. 2. Flowers are arranged in corymb or corymbose receme. 3. Four sepals in two whorls (2+2). 4. Brassicaceae consists of four petals, cruciform. 5. Brassicaceae consists of six stamens and have tetradynamous (2 small + 4 long). 6. Carpels have [...]