Do you find any evidence of stamens? Does the pome develop from an epigynous or hypgynous flower? Examine the cross-section of an apple, noting the star-shaped core. What are the.
How many of them are there? Is the pome a true fruit or an accessory fruit? Identify and label the drawings of the pome. Identification of Miscellaneous Fruits. There is a key for the identification of fruits at the end of this exercise. Study the various fruits available in the laboratory, having your instructor name them for you if necessary, and record your information on each one on the Table provided. Label the drawings of all of the fruits you have identified.
Characteristics of Some Common Fruits. Name of. Dry or. Type of. Types of Fruits: Label the fruit type of each of the drawings below and on the next two pages. Key to the Classification of Fruits. Simple fruits, formed from a single ovary or carpel Compound fruits, formed from several carpels or ovaries Dry fruits Fleshy fruits Fruit dehiscent Fruit indehiscent Fruit derived from one carpel only Fruit derived from one to several carpels Fruit splitting at maturity along one suture Fruit splitting at maturity along two sutures Fruit formed of 2 carpels, separating at maturity, leaving a persistent partition.
Fruit formed of several carpels Fruit several to many-seeded, breaking at maturity into several one-seeded. Fruit not as above, generally one-seeded Seed coat firmly united with pericarp at all points Seed coat not attached to pericarp at all points Pericarp thin, with one or two wings Pericarp lacking wings Fruit coat very hard Fruit coat not particularly hard Fruit composed of 2 carpels, separating at maturity into two 1-seeded halves or.
Fruit coat thin, not separating; fruit small, 1-seeded Fleshy part of fruit derived from ovary only Fleshy part of fruit derived, at least in part, from the receptacle Entire ovary becoming fleshy at maturity Outer part of ovary fleshy,.
Fruit fleshy or juicy, composed of several usually 10 carpels, each with 2 seeds; rind leathery Fruit fleshy, of several carpels, each with one to several seeds; leathery rind. Pistils several, separate, non-fleshy, enclosed by the fleshy or semi-fleshy receptacle. Ovary compound, carpels united Ovary wall fleshy, berry-like, with hard rind Inner part of ovary wall papery or cartilaginous, outer part fleshy, surrounded.
Many simple fruits, usually achenes or drupes, derived from separate carpels of one. Aggregate Fruit. Many simple fruits derived from the carpels of separate flowers Flowers borne within an enlarged hollow, fleshy receptacle Flowers borne upon the surface of a more or less fleshy receptacle Multiple Fruit.
Modified Structures in Plants. Many shoot systems, both stems and leaves, have modifications for special purposes. The leaves of carnivorous plants are famous examples of modified structures which are used for trapping and digesting insects and other small organisms. Just for curiosity observe the many stem, leaf, and shoot modifications on display.
Common Underground Stems and Shoots. Other Modified Stems. Leaves can also form tendrils. Stolons Creeping stems that grow horizontally on the soil surface and often give rise to new plants at the nodes. Technically, the thorns on roses and blackberry bushes are modified epidermis cells, called prickles. Specialized Leaves.
Carnivorous plants. As complete as possible representation of both dry and fleshy fruit types. Demonstration of as many spices as is feasible. Display of survival plants either herbarium specimens. Display of poisonous plants either herbarium. Some Suggested Learning Goals. Know how the various fruit types are distinguished from one another. Know at least one or two representatives of each fruit type.
Learn which plant parts are used for specific purposes. Know several representative survival plants, how they are used, and how the toxic plants poison humans. In this exercise you will be asked to classify a number of fruits and to know examples of each fruit type. Fruits may be defined as mature ovaries, usually containing seeds.
At maturity, the ovaries swell and become fleshy. Dry fruits either release their seeds when the fruit splits at maturity, or the fruit wall layers adhere to the seeds within and remain until the seed germinates. A mature fruit, such as a peach, has three identifiable regions in addition to the seed s. The outermost region "skin" is referred to as the exocarp. The flesh between the exocarp and the endocarp is the mesocarp.
A fruit that consists of more than just the ovary is said to have accessory tissue or is called an accessory fruit. Key to Common Fruits. Fruits fleshy. Fruits simple i. Fruits with a single seed enclosed in a hard pit Fruits with more than one seed, the seeds not enclosed in a hard pit only one seed develops in an avocado, and no seeds develop in the common banana.
Fruits with thin or leathery skin or the outer part of the fruit forming a rind; endocarp not. Fruits with leathery or papery endocarps Fruits derived from more than one pistil. Fruits derived from several to many separate flowers in an inflorescence, the fruits. Fruits dry at maturity. Fruits not splitting at maturity. Fruits with a wing Fruits without a wing. The information that is contained here does not guarantee benefits. To find out if this is covered by your plan, call Member Services at Register for an account, log in, and set up future payments using auto pay.
Prefer to speak to us directly? Call And Which Is Best? Here are a few interesting facts about apples: How many types of apples exist? Are there any new kinds of apples? And just how fresh are apples at the store? Related Articles. What can you do to stay healthy? Access convenient, high-quality care right from the comfort of your own home. Important Links Notices.
Other pome fruit. Nashi asian pear varieties Quince growing. Pests, diseases and disorders. Apple and pear scab Avoiding spray drift from air-blast sprayers in vine and tree crops Bitter pit in apples Bitter rot of apple Boron deficiency cork in pome fruits European wasps in orchards. Drought resources.
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