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Gymnosperms
| Question | Answer |
|---|---|
| Gymnosperm adaptations | seed protected with food, pollen, defense chemicals, improved vessels and vascular cambium |
| Primary Growth | growth within the vascular cambium which is outward |
| Secondary Growth | growth in girth within the vascular cambium |
| Seconday xylem | wood |
| Naked seeds still have____ | seed coat |
| Monoecious | plant is both male and female |
| Dioecious | plant is either male or female |
| Heterosporous | two types of spores: microspore and mega spore |
| Microspore | male cones on scales |
| Megaspore | female cones on scales |
| Cycadophyta | dioecious, retain flagellated sperm, first group to diverge from seedless vascular plants |
| Ginkgophyta | dioecious, one living species, female cones smell horrible |
| Coniferophyta | most abundant, needles single or fasicles (groups of needles) |
| Gnetophyta | three different genera: welwitschia, ephedra, and gnetm |
| Welwitschia | gnetophyta, lives in desert, 2 long leaves |
| Ephedra | gnetophyta, photsynthetic stems |
| Gnetum | gnetophyta, very close to angiosperms, xylem contains vessles, analogous to angiosperms |
| Analogous | similar form and function without a common ancestor |
| Homologous | similiar form and function from a common ancestor |
| Ephedra | Mormon tea |
| Ginkgo biloba | Ginkgo |
| Pinus | Austrian pine |
| Pinus ponderosa | Ponderosa pine |
| Picea pungens | Colorado blue spruce |
| Picea abies | Norway spruce |
| Picea | Engelman spruce |
| Pseudotusga menziesii | Douglas-fir |
| Larix | Larch, or tamarack |
| Taxus | Yew |
| Juniperus | Juniper |
| Thuja | Arbor-vitae |
| Sequoiadendron giganteum | Giant sequoia |
| Describe Ephedra | native plant, bushy/shrub, male or female, photosynthetic stems |
| Describe Taxus | diecious, fleshy cones, bushy, coniferita, taxol used for cancer treatment |
| Describe Juniperus | round, bushy (either shrub or tree) diecious |
| Describe picea pungens | blueish color, firm needles, middle length female cones |
| Describe picea abies | monoecious, single needles, pointy/sharp, braches hang straight down, large papery cones longest female cones |
| Describe Engelman spruce | short needles, short cones, papery wood, used in logging, cones have fat stubby scales |
| Describe thuja | flat scale like, bud shaped monetious |
| Describe pinus ponderosa | native, long 3 needles, monectious |
| Describe austrian pine | 2 needles |
| Describe sequoiadendorn gignateum | diecious and golf ball sized cones |
| Describe ginkgo biloba | fleshy cones (females smell bad) |
| Larix | long thin neeles, diecious |
Created by:
missmyk
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