Botany

• germ tube

  (botany) a slender tubular outgrowth from a spore in germination.

• pollen tube

  (botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma...

• corona

  (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus...

• lip

  (botany) either of the two parts of a bilabiate corolla or calyx.

• lobe

  (botany) a part into which a leaf is divided.

• ligule

  (botany) any appendage to a plant that is shaped like a strap.

Fungus

• mycelium

  The vegetative part of a fungus consisting of a mass of branching threadlike hyphae.

• cap

  A fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy...

• volva

  Cuplike structure around the base of the stalk of certain fungi.

Ovule

• chalaza

  Basal part of a plant ovule opposite the micropyle; where integument and nucellus are j...

• nucellus

  Central part of a plant ovule; contains the embryo sac.

Also contains

• plant organ

  A functional and structural unit of a plant or fungus.

• plant tissue

  The tissue of a plant.

• veil

  A membranous covering attached to the immature fruiting body of certain mushrooms.

• stock

  A plant or stem onto which a graft is made; especially a plant grown specifically to provide...

• thallus

  A plant body without true stems or roots or leaves or vascular system; characteristic of...

• duct

  A continuous tube formed by a row of elongated cells lacking intervening end walls.

• receptacle

  Enlarged tip of a stem that bears the floral parts.

• tendril

  Slender stem-like structure by which some twining plants attach themselves to an object...

• stump

  The base part of a tree that remains standing after the tree has been felled.

• button

  Any of various plant parts that resemble buttons.

• prophyll

  A plant structure resembling a leaf.

• aril

  Fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk...

• calyptra

  The hood or cap covering the calyx of certain plants: e.g., the California poppy.

• domatium

  A part of a plant (e.g., a leaf) that has been modified to provide protection for insects...

• skirt

  (Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a ...

• kernel

  The inner and usually edible part of a seed or grain or nut or fruit stone; "black walnut...

• mentum

  A projection like a chin formed by the sepals and base of the column in some orchids.

• stub

  A short piece remaining on a trunk or stem where a branch is lost.

• pycnidium

  Flask-shaped asexual structure containing conidia.

• stipule

  A small leafy outgrowth at the base of a leaf or its stalk; usually occurring in pairs and...

• tepal

  An undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal...

• gynostegium

  The crown of the stamen in plants of the genus Asclepias.