Leaf Water Flow
"Semi-diagrammatic cross section of a leaf showing by arrows how the water passes from the tracheal…
Intercellular Spaces of Leaf
"Showing intercellular spaces: f, between the palisade cells; e, in a leaf; g, border parenchyma; h,…
Indian Corn Leaf Cells
"Cross section of a portion of a leaf of Indian corn. a, upper and b, lower epidermis; c, c, palisade…
Plant Vein
"Diagram indicating the succession of the conducting tissues of a vein from the base toward the apex.…
Spiderworts
Two species of the spiderwort family: left, Virginia day flower (Commelina virginica); right, spiderwort…
S. Herbacea and S. Rotundifolia
Two species of the lily family (Liliaceae): left, carrion flower (Smilax herbacea); right, green brier…
Trillium Lilies
Some species of the lily family (Liliaceae): top, nodding trillium (Trillium cernuum); left, erect flower…
Virginia Snakeroot
Of the birthwort family (Aristolochiaceae), the Virginia snakeroot or Aristolochia serpentaria and the…
Curled Dock
Of the buckwheat family (Polygonaceae), the curled dock or Rumex crispus. Also shown are the winged…
Pasque Flower
Of the crowfoot family (Ranunculaceae), the pasque flower or Anemone patens var. Wolfgangiana.
Canadian Anemone
Of the crowfoot family (Ranunculaceae), the Canadian Anemone or Anemone Canadensis.
Wood Anemone, Rue Anemone, and Liverwort
Of the crowfoot family (Ranunculaceae): top, wood anemone (Anemone quinquefolia); middle, rue anemone…
Bulbous Buttercup
Of the crowfoot family (Ranunculaceae), the leaf and flower (showing reflexed sepals) of the bulbous…
Red Baneberry Flower
Of the crowfoot family (Ranunculaceae), the flower of the red baneberry or Actaea rubra.
White Baneberry
Of the crowfoot family (Ranunculaceae), the flower of the white baneberry or Actaea alba.
Beach Pea Flower
Of the pulse family (Leguminosae), the flower of the beach pea or Lathyrus maritimus.
Marsh Mallow
Of the mallow family (Malvaceae), the leaf and flower of the marsh mallow or Althaea officinalis.
Swamp Rose-Mallow
Of the mallow family (Malvaceae), the flower of the swamp rose-mallow or Hibiscus Moscheutos.
Yellow Lady's Slipper
The yellow lady's slipper or Cypripedium parviflorum is an orchid used for medicinal purposes.
Spotted Wintergreen
The spotted wintergreen or Chimaphila maculata is a perennial herb used for medicinal purposes.
Dog's Bane
The dog's bane or Apocynum androsemifolium is a flowering plant used for medicinal purposes.
Indian Tobacco
The Indian Tobacco or Lobelia inflata is an herbaceous plant used for medicinal purposes.
Butterfly Weed
The butterfly weed or Asclepias tuberosa is a milkweed plant used for medicinal purposes.
Linnaeus' Pentandria
The sexual system of a plant, here having five stamens and one pistil, Pentandria.
Linnaeus' Hexandria
The sexual system of a plant, here having six stamens and one pistil, Hexandria.
Linnaeus' Polyandria
The sexual system of a plant, here having many stamens with a pistil in the center, Polyandria.
Linnaeus' Didynamia
The sexual system of a plant, here having four stamens of unequal length, Didynamia.
Linnaeus' Tetradinamia
The sexual system of a plant, here having six stamens (four longer), Tetradinamia.
Linnaeus' Monadelphia
The sexual system of a plant, here having stamens united in a tube, Monadelphia.
Linnaeus' Diadelphia
The sexual system of a plant, here having stamens united in two bundles, Diadelphia.
Linnaeus' Polyadelphia
The sexual system of a plant, here having stamens united in three or more bundles, Polyadelphia.
Linnaeus' Syngenesia
The sexual system of a plant, here having stamens united by anthers, Syngenesia.
Linnaeus' Gynandria
The sexual system of a plant, here having stamens united with the pistil, Gynandria.
Linnaeus' Monoecia
The sexual system of a plant, here having stamens and pistils in two different flowers of the same plant,…
Linnaeus' Dioecia
The sexual system of a plant, here having stamens and pistils on two different plants, Dioecia.
Linnaeus' Polygamia
The sexual system of a plant, here having both hermaphrodite and unisexual flowers on the same plant,…
Linnaeus' Cryptogamia
The sexual system of a plant, here having hidden reproductive organs, Cryptogamia.
