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lichen

(Encyclopedia)lichen līˈkən [key], usually slow-growing organism of simple structure, composed of fungi (see Fungi) and photosynthetic green algae or cyanobacteria living together in a symbiotic relationship and...

buttercup

(Encyclopedia)CE5 Common buttercup, Ranunculus acris buttercup or crowfoot, common name for the Ranunculaceae, a family of chiefly annual or perennial herbs of cool regions of the Northern Hemisphere. Thought to...

dewberry

(Encyclopedia)dewberry, name for several species of the genus Rubus of the family Rosaceae (rose family). See bramble. ...

coffee tree, Kentucky

(Encyclopedia)coffee tree, Kentucky, common name for the plant species Gymnocladus dioica, a tree of the family Leguminosae (pulse family) and native to the E United States. The seeds of the woody pods have been us...

tree fern

(Encyclopedia)tree fern, any fern having a treelike trunk. Sometimes other similar primitive plants are also called tree fern, e.g., species of cycad. ...

book lung

(Encyclopedia)book lung, terrestrial respiratory organ characteristic of arachnids such as scorpions and primitive spiders. Each book lung consists of hollow flat plates. Air bathes the outer surface of the plates ...

blackberry

(Encyclopedia)blackberry, name for several species of thorny plants of the genus Rubus of the family Rosaceae (rose family). See bramble. ...

entomology

(Encyclopedia)entomology, study of insects, an arthropod class that comprises about 900,000 known species, representing about three fourths of all the classified animal species. Insects are studied because of their...

abominable snowman

(Encyclopedia)abominable snowman or yeti yĕtˈē [key], humanlike creature so named because it is associated with the perpetual snow region of the Himalayas. A figure unknown except through tracks ascribed to it a...

gerbil

(Encyclopedia)gerbil jûrˈbĭl [key], small desert rodent found throughout the hot arid regions of Africa and Asia. Also known as sand rats, gerbils have large eyes and powerful, elongated hind limbs upon which th...