GLOSSARY OF TERMS. 
175 
contrived that the change to be effected may be brought about 
gradually, and the cold and heated volumes should be made to 
intermingle regularly, and as far as possible in every part of 
the house ; thus if it were desirable to admit a foot or yard of 
cold air, this foot or yard could not be allowed too many points 
of ingress. 
The subject might be considerably extended, were not the 
present paper already sufficiently long. 
May 1st, 1845. 
GLOSSARY OF TERMS USED IN BOTANICAL 
DESCRIPTIONS. 
( Continued from p. 155.) 
Bacca. A berry, distinguished chiefly by their vinous pro¬ 
perties. 
Baccate. Bearing berries, having a fleshy covering. 
Bagged. Resembling a pouch or bag. 
Bands, or Vittel. The flattened or hollow spaces between 
the elevated ribs of the fruit of umbelliferous plants. 
Band-shaped. Descriptive of the form of an organ whose 
length is much greater than its width. 
Barbatus. Bearded. 
Bark. The external covering of the stems and roots of all 
cotyledonous plants, increasing annually on dicotyledones 
by an additional deposit. 
Bars. Distinct lines of colour upon the floral portion of a 
plant. 
Basal. Proceeding from the base. 
Base. The point of union between an organ and its support. 
Basin er vis. When the veins of a leaf extend from one ex¬ 
tremity to the other without subdividing. 
Beak. A pointed projection, resembling the beak of a bird. 
Beard. An hairy pubescence usually attached in tufts, used 
improperly as a synonym for awn. 
Beardletted. Having small awn-like processes. 
Bedeguar. A fibrous excrescence, frequently seen on the rose, 
occasioned by the puncture of a cynips. 
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