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Found Angiosperm 25 times.

Displaying results 1 to 10.

1. Angiosperm
A flowering, fruit-bearing plant or tree; the ovules (and therefore seeds) of these plants develop within an enclosed ovary .

2. Angiospermae
A major division of the plant kingdom, commonly called flowering plants as their reproductive organs are in flowers, having seeds which develop in a closed ovary made of carpel s, a very reduced gametophyte , and endosperm develop from a triple fusion nucleus.

3. Angiosperms
Flowering plants. first appearing at least 110 million years ago from an unknown gymnosperm ancestor, flowering plants have risen to dominance in most of the world's floras. The male gametophyte is 2-3 cells contained within a pollen grain; the female gametophyte is usually eight cells contained within an ovule which is retained on the sporophyte phase of the plant's life cycle.

4. Brassica (Brassicaceae, Cruciferae)
A genus of plants belonging to the mustard family Brassicaceae. The whole family includes a total of 376 different genera and 3,200 different species . The family is also known as "Cruciferae" because the four petaled flowers of these plants look like crosses. The plants are distributed worldwide and have annual (living one year), biennial (living two years) and perennial (living many years) members. Member species of genus Brassica include Brassica napus which produces rapeseed or canola oil; Brassica nigra which produces yellow mustard; Brassica oleracea whose subspecies and strains include kale and collard greens (B. oleracea acephala), broccoli (B. oleracea botrytis), cauliflower (B. oleracea cauliflora), head cabbage (B. oleracea capitata), brussel sprouts (B. oleracea gemmifera), and kohlrabi (B. oleracea gongycoides); and Brassica rapa, whose subspecies include pak choi (B. rapa chinensis), Chinese cabbage (B. rapa pekinensis), and turnip (B. rapa rapifera). Also, one subspecies of B. rapa is used as a model organism to study genetics , molecular biology , plant breeding, cell biology , and physiology ; it is called the "rapid cycling" Brassica or RCBr or the Wisconsin Fast PlantTM , and was developed specifically for scientific study. Additionally, the radish Raphanus sativus is a member of the Brassicaceae family. The full taxonom ic classification is kingdom Plantae, division Tracheophyta, subdivision Spermatophyta, class angiospermae, subclass Dicotyledeonae, order Papaverales, family Brassicaceae.

5. Cone
In gymnosperm s and club mosses, a group of sporophyll s arranged compactly on a central axis; in the angiosperm family Casuarina, a woody multiple fruit incorporating the bract s and bracteoles associated with the flowers.

6. Dicotyledon (dicot)
A subclass of of angiosperms . They tend to have: * broad leaves * two cotyledon s * netlike veins in the leaves * flower parts are usually in fours or fives * a ring of primary vascular bundles in the stem * taproot system. Compare: monocot

7. Double fertilization
A characteristic of angiosperms in which a pollen tube carries two sperm cells to the female gametophyte in the ovule . One sperm cell fuses with the egg cell and gives rise to a diploid embryo The other sperm cell fuses with the two polar cells to form a triploid cell that develops into the endosperm .

8. Embryo sac
Alternate term applied to the angiosperm female gametophyte contained within a megaspore .

9. Endosperm (albumen)
Nutritive tissue in a seed; in angiosperm s it's triploid and is formed in the embryo sac after fertilization. In gymnosperm s, it's haploid and is derived from the sterile portion of the female gametophyte . Compare perisperm .

10. Endosperm
A food storage tissue that provides nutrients to the developing embryo in angiosperms ; formed from the triploid cell produced when a sperm cell fertilizes the central cell. Some endosperm is solid (as in corn), some is liquid (as in coconut).


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