Ear (botany) Ear (botany) An ear is the grain-bearing tip part of the stem of a cereal plant, such as wheat or maize. It can also refer to "a prominent lobe in some leaves". The ear is a spike, consisting of a central stem on which tightly packed rows of flowers grow. These develop into fruits containing the edible seeds. In corn, it is protected by leaves called husks. In some species (including wheat), unripe ears contribute significantly to photosynthesis, in addition to the leaves lower down the plant. A parasite known as "Anguina tritici" (Ear Cockle) specifically affects the ears on
Calyx podatypa Calyx podatypa Calyx podatypa is a species of demosponge belonging to the Phloeodictyidae family. It is native to the Caribbean. The species was first described in 1934 by American spongiologist Max Walker de Laubenfels. It is commonly found in shallow reefs, among seagrass and on mangrove roots. It is described as being mostly hollow with growths that range from branched to lobate in shape and tubular projections. It has round openings between 1-5mm in size. The colour is "Brown-yellowish to greenish" on the outside and tan on the inside. A number of biologically active compounds have been isolated from "Calyx