Mindblown: a blog about philosophy.

  • Sclerotium

    Resting body of some fungi, composed of a hardened mass of hyphae usually rounded in shape. A fleshy mass of hyphae of definite structure serving as a resting stage for a fungus. A hardened mass formed by the growth of certain fungi. The sclerotium formed by ergot on rye is of medical importance due to…

  • Ring (annulus)

    In mushrooms, a membranous ring found on mature stems of some species; remnant of partial veil. Ring of tissue left on the stem from the remains of a veil. Tissue left on the stem from the remains of a veil; annulus. A circle of tissue, or tissue or muscle shaped like a circle.  

  • Red tide or red water

    Concentration of toxic species of algae that cause a reddish coloration in water. A dense growth of marine algae (dinoflagellates) in coastal waters. The tide may discolor the surface of the ocean, giving seawater a red, green, or brown appearance. The algae that cause the tide produce a variety of poisons which may kill marine…

  • Ray flower

    Ray flower

    Ligulate flower, with corolla flattened and strap-like above a very short tube (e.g., the outer “petal” of a daisy, actually comprising a single flower in a composite head). The small, straplike flowers found on the heads of members of Asteraceae. The margin flowers on a composite head, usually sterile, that resemble single petals. (Example: the…

  • Palmate leaf

    Five or more lobes arising from one point in a hand-like arrangement (e.g., typical maple leaf). A compound leaf with more than three leaflets arising together from the top of t he leaf-stalk.  

  • Luminescence

    Emission of light from a living organism. Production of light without the production of heat; light not due to incandescence or thermal sources; occurs at low temperatures. The emission of light by a material following excitation by some stimulus. Production of light without production of heat. The phenomenon of radiation or light emission from a…

  • Gills

    Radiating plate-like spore-bearing structures found on the undersurface of the cap of some mushrooms. Plate-like structures arranged radially on the underside of the mushroom cap, on which the hymenium and spores are formed. Radiating vertically aligned plate-like spore-bearing structures found on the undersurface of the cap of some mushrooms.  

  • Fibrils

    Minute hairs. A very small fiber or a constituent thread of a fiber (for example, a myofibril of a muscle fiber),      

  • Entire leaf

    Leaf whose margins are smooth (compare Serrated).  

  • Crustose

    Lichen growth form in which the thallus (main structure of lichen) adheres to the substrate on which it grows.  

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