46 



A GLOSSARY OF TERMS 



COR'TET. Lat. Bark. The skin or 

 epidermis of shells: the coarse 

 outer bark of plants. 



CO'RTICAL. fr. lat. cortex, bark. Be- 

 longing to, or partaking of the na- 

 ture of bark. ?x/*i- 



CORU'NDUM. Adamantine spar. A 

 crystallized or massive mineral of 

 extreme hardness, almost opaque, 

 and of a reddish colour. It is 

 allied to the sapphire, and is com- 

 posed of nearly pure alumina. 



COR'VUS. Lat. A Crow. 



CORYDA'I.IS. Helmet-like. 



CO'RTMB. fr. gr. korumbos, a helmet, 

 a summit. A form of inflores- 

 cence in which the lower stalks 

 are so long that their flowers are 

 elevated to the same level as that 

 of the uppermost flowers. 



COR'YMBOSE. Arranged like a co- 

 rymb. 



CoRTM'BTJtosE.-Formed or arranged 

 in many small corymbs. 



COSMOPOLITE. fr. gr. kosmos, world ; 

 polites, citizen. A citizen of the 

 world. Peculiar to no country. 



COS'T^B. Lat. Ribs. In botany, 

 sometimes applied to the mid-rib 

 of a leaf, and sometimes to any 

 round projecting elevations, hav- 

 ing the same direction as the axis 

 of the fruit. 



COS'TATED. Ribbed ; having large 

 ribs. 



COSTA'TUS. Lat. Ribbed. 



CO'TURXIX. Lat. A Quail. 



COTT'LEDON. fr. gr. kotuledon, a ca- 

 vity. The seed-lobe of a plant. 



COTTLE'DOVOUS. Belonging or re- 

 lating to a cotyledon. 



COT'TLOID. fr. gr. kotule, a drinking 

 cup; eidos, resemblance. The 

 name of a hemispherical cavity 

 in a bone of the pelvis, which re- 

 ceives the head of the thigh bone, 

 forming the hip joint. It is also 

 called the aretabidum. 



COURSER. i-A race horse. 



COVERTS. The small feathers which 

 lie in several rows on the bones 

 of the wings are called the Lesser 



coverts ; those that line the under 

 side of the wings, the Under co- 

 verts ; those feathers that lie im- 

 mediately over the quill feathers, 

 and secondaries, are the Greater 

 coverts,- and the Tail coverts, are 

 those feathers that cover the tail 

 on the upper side, at the base. 



COWLED. In botany, cuculate ; hav- 

 ing the end curved inwards in 

 such a manner as to represent 

 the cowl or hood of a monk. 



COX'A. Lat. Hip. The superior 

 portion of the leg of an insect. 



CRAG. A provincial term in Nor- 

 folk and Suffolk (England) for 

 certain tertiary deposits, usually 

 composed of sand with shells, be- 

 longing to the miocene period, 

 (p. 84, Book viii). 



CHA'NIAL. fr. lat. cranium, the skull. 

 Belonging or relating to the skull. 



CRA'NIUM. Lat. The skull. 



CHASSATE'LLA. A genus of bivalve 

 shells. 



CRA'TER. fr. lat. crater, a great cup 

 or bowl. The mouth of a vol- 

 cano, (p. 107, Book viii). Cra'ter 

 of elevation is more extensive than 

 the crater of eruption, and is sup- 

 posed to have been formed by 

 the elevation of the ground pre- 

 vious to a volcanic eruption. 



CRATERI'FEROUS. Containing cra- 

 ters. 



CRATE'RIFORM. In form of a crater. 



CREKPING. In botany, running ho- 

 rizontally or close to the surface 

 of the ground. 



CHE'MOCARP. fr. gr. kremao, to sus- 

 pend ; karpos, fruit. A kind of 

 fructification in which a pair of 

 achenia are supported by the car- 

 pophore. 



CRE'NATE. ^ fr. lat. crena, a notch. 



CRK'NATED. 5 Having rounded teeth. 

 Applied to shells which present 

 small indentations, generally of a 

 sharp and regular form, frequently 

 observed on the outer lip of spiral 

 shells, particularly on many of 

 the typical mitres. A leaf ii 



