crassula argentea - the jade plant review of flower formula:
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Crassula argentea - the jade plantReview of Flower Formula:
Ranunculus - buttercup
Review:What is the flower formula?
Lilium tigrinum - tiger lilyWhat is the flower formula
for this plant?
The strange lateral buds are called bulbils. These are shed as a means of vegetative propagation
Adaptations for PollinationAttraction
Visual Cues: Color, Shape, Size
Olfactory Cues: Scent, Odor
Reward
Nectar: Sucrose, Water, Amino Acids
Pollen: Vitamins, Minerals, Protein
Behavior: Recreational Motivation!
Rudbeckia hirta - black-eyed Susan
Hemerocallis - day lily
Attraction: Visual Bull’s Eye
Gaillardia grandiflora - Indian blanket flower
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NectarGuides
Nice scent too!
Osmophores: release scent as alternate attractant
Sometimes the scent is the reward…A behavioral reward!
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http://www.orchid-rhoen.de/Bitmaps/34%20Ophrys%20insectifera.jpg
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http://ibelgique.ifrance.com/ophrys/insc1.jpg
Ophrys insectifera with pollinator Argogorytes mystaceus
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http://guenther.blaich.bei.t-online.de/argoins.htm
Bergstrm, G. (1978) Role of volatile chemicals in Ophrys-pollinator interactions In Biochemical Aspects of Plant and Animal Coevolution (J. B. Harborne, ed.), Academic Press, London.
Beetles as pollinators: lousy flight accuracy, heavy feeding
Target is largeAlternate entryHeavy flower partsPollen load is heavy
Fantasy Island…Or
Nightmare Island?
Hovering Birds and Sequence!
Perching BirdsSame SequenceStiff-Leaf Perches!
Hibiscus rosa-sinensis
Asclepias - Milkweed and Monarchs
Kalmia - mountain laurel
Nectar spur: a pouch containing phloem exudate
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Darwin described an orchid, Angraecum sesquipedale from Madagascar with an 11.5-inch nectar spur!
He predicted that there would be a pollinating animal with 11.5-in mouthparts to drink the nectar, but never found the animal.
Much later (1903), Xanthopan morgani predicta, its pollinator was found with an 11.5-inch siphon!
Wind Pollination: Corn (Zea mays)
Male flowers in the tassel
Huge numbers of small, dry pollen grains, shed from high on plant. Perianth small, greenish, no nectar
Female flowers in earLong, sticky, hairy stigmas = silk
Ross’ Rogues Gallery
Flowers that Horticulture has turned into what I consider to be hideous
monsters!
Dianthus caryophyllus - carnation
Rosa floribunda - rose
Malus domestica - apple
Gaillardia grandiflora - Indian blanket flower
Hemerocallis - daylily