A sunken stomata is a stomata in a small pit, which protects the escaping water vapor from air currents, decreasing water loss from the leaf. Sunken stomata are commonly found in plants in arid environments as one of their adaptations to preserve water. Plants with sunken stomata often have fewer stomata in general than plants in moister environments.
Sunken stomata are a feature of many plants in deserts and other dry environments. Stomata are tiny holes, generally on the bottom surfaces of leaves, that allow for gas exchange and the release of water vapor. In moist environments, this is often necessary because the plants take in more water than is necessary for photosynthesis. It is not necessary in deserts, but because of the need for stomata for gas exchange, plants in dry environments cannot prevent some water loss. They minimize this loss through structures like sunken stomata.
Other plant adaptations to life in dry environments include waxy cuticles, rolled leaves and small needle-like leaves. Waxy cuticles both prevent water loss directly and reflect heat, a major cause of water loss through evaporation. Rolled leaves keep their stomata inside, slowing water loss in the same way as sunken stomata. Needle-like leaves both reduce surface area and, in the case of some plants, act as a defense against herbivores.Learn More
A seed coat protects the internal parts of the seed from fungi, bacteria and insects and prevents water loss. The seed coat must split open before a new plant may emerge.Full Answer >
A split-leaf philodendron is a tropical plant that can be grown indoors. Its other names are window leaf and swiss-cheese plant. The split-leaf philodendron has large leaves with splits that give them unusual texture. This plant is sensitive to temperatures below 60 degrees and grows well in medium lighting. Split-leaf philodendron is excellent for decorating indoor rooms.Full Answer >
Persimmon leaf is traditionally used to treat high blood pressure and other conditions, such as hiccups, in Eastern medicine. The leaf can be made into a tea, and it is also used whole in some dishes. WebMD explains that Japanese persimmons and leaves are thought to possess properties that relieve constipation, improve blood flow, prevent stroke and reduce body temperature.Full Answer >
Preserve the delicate structure of a four-leaf clover by covering the plant with a combination of borax and cornmeal in a shoebox. Let the clover sit for seven days, carefully remove it from the mixture, and store it in a dry area.Full Answer >