1 / 33

Carnivorous Plants

Carnivorous Plants. Nepenthes hamata. Beautiful, Strange and Truly Wondrous. Adapted for nutrient-poor soils, wet climates, bright light Like all green plants, photosynthesize (I.e. they’re producers)

floyd
Download Presentation

Carnivorous Plants

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Carnivorous Plants Nepenthes hamata Beautiful, Strange and Truly Wondrous

  2. Adapted for nutrient-poor soils, wet climates, bright light Like all green plants, photosynthesize (I.e. they’re producers) Utilize excess sugars from photosynthesis (which only requires sunlight, water, and CO2) as bait Attract and absorb macronutrients P-K-N (e.g. fertilizer) from prey Hence, the adaptation of carnivory turns plentiful sunlight and water into essential nutrients that allow the plants to compete in impoverished soils Carnivorous Plants Classic examples of ecological resource trading

  3. Soil with low mineral content(usuallyacidic) Plenty of pure water (no salts, dissolved solids, metals, etc.) Lots of sunlight Little competition from alien species Prey (mostly for flowering and fruiting) As can be expected from this list, most are extremely endangered: Development of the coastal swamps of the Southeast USA Deforestation of SE Asia Pollution of wetlands Imported competition (Purple Loosestrife) Carnivorous Plants As a result, almost all species have similar needs

  4. Genera of Carnivorous Plants Over 550 Species; three basic trapping mechanisms Sticky traps (flypaper) • Byblis • Drosera • Drosophyllum • Pinguicula Pitfall traps (pitchers) • Darlingtonia • Cephalotus • Heliamphora • Nepenthes • Sarracenia Active traps (“steel trap” and “trap door”) • Aldrovanda • Dionaea • Utricularia Other/passive (Minnow traps) • Genlisea

  5. Venus FlytrapDionaea muscipula Active traps

  6. Venus FlytrapDionaea muscipula Trigger hairs Flowers and seeds

  7. Drosera – The Sundews Sticky traps

  8. D.dichro-sepala D.echino-blasta D.citrina D.ericksoniae D.mannii D.oreo-podeon D.paleacea paleacea D.pulchella (pink) D. microscapa D. occidentalis D.ericks. x pulchella D.silvicola D.spilos D.sp.Warriup D.stelliflora

  9. Drosera multifida

  10. Drosera capensis

  11. Drosera capensis in action!!! Sticky traps + Leaf blade movement to aid digestion

  12. Tuberous SundewDrosera peltata

  13. Other stickies: Byblis liniflora The Rainbow Plant Sticky traps

  14. Other stickies: Pinguicula Sticky traps The Butterworts

  15. Sarracenia - North American Pitcher Plants Pitfall traps S.purpurea

  16. Sarracenia flava

  17. Sarracenia leucophylla and Sarracenia psittacina

  18. High light levels (full sun is usually best) Never allow to dry out Use pure water with few dissolved solids or salts (deionized/distilled/ reverse osmosis/rainwater) No fertilizer! Use peat moss based medium (mix w/ lime-free sand or perlite) All are native to the USA (Flytraps from North Carolina)… …and require a dormancy period Flytrap and Sarracenia Care

  19. Temperate Similar to Dionaea and Sarracenia needs But may tolerate dilute fertilizer: ¼ strength Mir-acid And lower light levels Pygmy Dormancy required May reproduce asexually by gemmae Tuberous Need dormancy generally in the summer in USA Can tolerate direct sun Some seeds actually need to be exposed to fire to germinate. Drosera Care

  20. N.burbidgeae N.lowii Nepenthes - “Monkey Cup” Tropical Vine Pitcher Plant Pitfall traps

  21. Pitcher size from 1” to more than 2 liters Leaves up to 1 meter length Some scramble, some climb many meters Rats and baby monkeys have been found in pitchers Over 100 species distributed in SE Asia Found from sea level to 2000+ m elevation Credit: Malesiana Tropicals Nepenthes - “Monkey Cup” Tropical Vine Pitcher Plant

  22. Nepenthes Care • More tolerant of minerals in the water and drought • Separated into “Lowland” (<1000m) and “Highland” (>1000m) species • Lowlands expect 20+°C and high humidity at all times (~ terrarium) • Highland species expect (and often need) a cool night and open, less damp medium (sphagnum) • Some highlands even grow as epiphytes. • No dormancy • Propagated from cuttings, tissue culture, and sometimes seed

  23. Nepenthes ampullaria “”detritivore” Lowland species

  24. Nepenthes bicalcarata Large lowland species: span 2m, vines 8+m Symbiotic with ant species

  25. Nepenthes albomarginata (blue spotted form) Lowland species Specialized to eat termites Highland species

  26. Nepenthes campanulata Lowland species Nepenthes gracilis

  27. Nepenthes truncata Lowland species

  28. Nepenthes aristolochioides Highland species Highland species

  29. Nepenthes macrophylla Highland species

  30. Cephalotus follicularisAlbany Pitcher Plant Pitfall traps

  31. Darlingtonia californicaCobra Lily Pitfall traps

  32. South American Pitcher PlantHeliamphora heterodoxa Pitfall traps

  33. Carnivorous Plant Societies • International Carnivorous Plant Society • www.carnivorousplants.org • New England Carnivorous Plant Society • Roger Williams Park, Providence, RI • www.necps.org N.bicalcarata

More Related