Specimens
Specimens are available for use in a wide variety of organic and inorganic testing procedures. Organic samples can be utilized for dissection purposes or studying whole preserved or life specimens, with practical examples in cellular biology or the internal structures of whole organs and complex multicellular systems. Rock specimens are useful for studying textures, grain sizes, and other features brought about by pressure, temperature, and other natural forces, offering a glimpse into the Earth’s geological history.
Geranium
Pelargonium or Geranium zonale. Dicot. With large, rounded leaves and upright growth habit, this plant is distributed worldwide. It is supplied in a pot with care instructions. Size: 6–8".
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Kalanchoe
This specimen produces plantlets on the leaf margins. Plantlets can be planted in their own pots, providing an interesting hands-on activities for students.
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Sundew
Drosera sp. Dicot. Rosettes of leaves, radiating from a central stem, trap small insects in leaf hairs, while glands on each tip exude a sticky substance that helps trap the bugs. It is native to acidic bogs in temperate regions and prefers a warm, humid environment. It comes supplied in a pot with care instructions. Size: 2–4".
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Marchantia
Usually Marchantia polymorphum. Marchantia can be used as an example of growth and development of liverworts, as well as to illustrate alternation of generations. Found throughout North America, the plant prefers moist, shaded soil. Marchantia frequently grows where other vegetation has been burned off. It is supplied in a plastic bag with care instructions. Size: 3"x4".
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Polytrichum
Polytrichum sp. Haircap moss. A widely studied example of a typical moss, with leafy, upright growth habit that shows alternation of generations. Appearance may vary, depending on season; it may show antheridia, archegonia, or sporophyte. It is supplied in a plastic bag with care instructions. Size: 3" x 4".
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Woodland Moss
Mixed varieties; species will vary. Excellent for general study or populating terrariums. It is supplied in a plastic bag with care instructions. Size: 3" x 4".
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Advanced Leaf Classification Riker Mount
Compare Simple and Compound Leaves
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Classification of Animals Riker Mount
Promote the concept of animal classification using beetles as an example.
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Harmful Insects Riker Mount, Riker Mount
Riker mount of harmful insects for display.
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Invasive Species (Exotic Pests)
Riker mount of invasive species for display.
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Hardwood/Softwood Comparison Riker Mount, Riker Mount
Accompanying Diagrams Detail Growth Rings
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Stem Adaptation Riker Mount
Learn Plant Morphology by Studying Stem Morphology