Desert Plants & Cactus in Arizona by the Arizona Game and Fish Department
Saguaro Cactus in Arizona by the Arizona Game and Fish Department
Posted by VT Jenny on September 17, 2008
Desert Plants & Cactus in Arizona by the Arizona Game and Fish Department
Saguaro Cactus in Arizona by the Arizona Game and Fish Department
Posted in Videos | Tagged: brittle bush, bursage, ocotillo, prickly pear, saguaro | Leave a Comment »
Posted by VT Jenny on September 16, 2008
Female plant anatomy – Pistil / Pistillate – which is made up of….
Ovary – where the magic happens, when you eat a fruit you’re eating a fertilized ovary
Style – part between the ovary and stigma
Stigma – The tip of the style, receives the pollen, often has a bit of nector to entice pollinator
Male Plant Parts – Stamen / Staminate
Anther – holds the pollen
Filament – holds up the anther
Perfect Flowers – bisexual, have both male and female parts in one flower
Imperfect Flowers – either male or female (flowers can be on one plant or on separate plants)
Monoecious – both male and female flowers on 1 plant, same plant
Dioecious - male and female flowers are on 2 plants, separate plants
Synoecious – male and female parts contained in single perfect flower on 1 plant.
**one house, two houses and same house (room)**
Outcrossing Mechanisims – to prevent close relatives from having offspring (why you don’t marry your cousin)
*Different flowering times – Monoecious plants may have male and female flowers bloom at separate time
*Dioecious plants have seperated male and female flowers to different plants
*Protandry-differential development of flower parts
*Self-incompatibility – the plant cannot fertilize itself with its own pollen
Cross-pollination – pollen exchanged between two or more plants
* naturally occurring in some species
* used to create species hybrids with desirable trait
* On a single plant, nown as ‘selfing’
Desert Adaptations of Flowers
* Night – flowerin
* Rainfall- triggered
* Yellow color
* Short-lived
Posted in Botany, Videos | Tagged: Botany | Leave a Comment »