Gardening Dictionary Thread

chris09

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..........................................A COMPLETE ANGIOSPERM FLOWER........................................
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FLOWER PARTS OCCUR IN WHORLS IN THE FOLLOWING ORDER- SEPALS, PETALS, STAMENS, PISTILS.

PEDICEL - flower stem
RECEPTACLE - base of flower where other parts attach
SEPALS - small and green, collectively called the CALYX
PETALS - often large and showy, collectively called the COROLLA
PERIANTH - CALYX + COROLLA
STAMEN - composed of filament and anther

ANTHER - structure containing pollen grains
FILAMENT - structure connecting anther to receptacle

ANDROECIUM - collective term for stamens
CARPEL - structure enclosing ovules

PLACENTA - place of attachment of ovule(s) within ovary
STIGMA - receptive surface for pollen
STYLE - structure connecting ovary and stigma
OVARY - basal postion of pistil where ovules are located

The ovary develops into the fruit and contains ovules (eggs) which develop into seeds after fertilization.

LOCULE/CELL - chamber containg ovules
PISTIL - Collective term for carpel(s)
THE TERMS CARPEL AND PISTIL ARE EQUIVALENT WHEN THERE IS NO FUSION, IF FUSION OCCURS THEN YOU HAVE 2 OR MORE CARPELS UNITED INTO ONE PISTIL.
GYNOECIUM - collective term for pistils, a gynoecium can be composed of:

1. A single carpel = simple pistil
2. Two or more fused carpels = compound pistil
3. Two or more unfused carpels = two or more simple pistils

To determine the number of carpels in a compound pistil, count the locules, points of placentation, styles, stigma lobes, and ovary lobes.
COMPLETE FLOWER - A flower having all four whorls
PERFECT FLOWER - A flower having both sexes
UNISEXUAL FLOWER - A flower having one sex
MONOECIOUS PLANTS - A plant with unisexual flowers with both sexes on the same plant
DIOECIOUS PLANTS - A plant with unisexual flowers with one sex on each plant, in effect, male and female plants

http://botany.csdl.tamu.edu/FLORA/301Manhart/repro/Flower diagram/flower_diagram.htm

Chris
 

ducks4you

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Holy Moley, allabout!!! VERY impressive! Here's another definition:
crop failure--when I try to grow something that takes too much care, needs too much watering, begs for too much "babysitting" and probably shouldn't be grown in my zone, ANYWAY! :lol:
 

897tgigvib

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Ya know...I think the ARTICLES section link in the green bar is empty.

Shall we fill it with some articles such as this dictionary?
 

Nifty

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Ooohh... thanks for noticing Marshall!

Actually I need to temp remove that until we decide:
1) Which system for articles we're going to use
2) If / how we're going to convert the old articles over (which are still live, just not linked to from here).
 

897tgigvib

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Nifty, would it be alright if some of us members work together to create articles also? Perhaps in a format you approve?

This gardening dictionary would be a great one to start with.
 

Nifty

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Marshall, you're my new best friend! ;)

Not only would it be ok, but I'm working on ways to really encourage our members to have fun with creating articles.

I think you're on to a great idea with taking existing threads and consolidating the wealth of info into individual articles!

Keep the great ideas coming!

:thumbsup
 

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