176 
THE FLORIST’S JOURNAL. 
Bi-acuminate. Applied to an organ when divided so as to 
present two points. 
Bi-conjugate. When a general petiole or leaf-stalk is extended 
at its apex into two secondary or smaller petioles. 
Bicormis. Having two horns. 
Bi-cuspidate. Having two points. 
Bidentate. Double-toothed, when the angular points of a 
dentate leaf are themselves toothed. 
Biduus. Continuing for two days. 
Biennial. A plant which requires two years to produce its 
seed, and then dies. 
Bifarious. Arranged in two rows. 
Bifid. Two-cleft, divided nearly half the length. 
Bigeminate. Synonym for biconjugate. 
Bigugate. When a pinnate leaf possesess but two pairs of 
leaflets, with or without the terminal one. 
Bilabiate. Having two lips, when the mouth of a single- 
petaled flower is divided into two parts. 
Bilateral. Arranged on two opposite sides. 
Bilobed. Double lobed. 
Bilocular. Applied to seed-vessels containing two cells or 
cavities. 
Binate. When two leaflets proceed from a common petiole. 
Bipartible. Applied to fruit which is readily divided into 
two similar parts. 
Bipinnate. When the secondary petioles of a compound leaf 
are arranged pinnately or opposite to each other, and the 
leaflets in a like manner on them. 
Biserrate. Double serrated, the serratures of a leaf being 
themselves knotched. 
Biternate. When both the leaflets and secondary petioles of 
a doubly-compound leaf are ternate. 
Bladders. Cellular expansions common to many aquatic 
plants, by means of w r hich they are enabled to float. 
Blade. The limb or expanded part of a gramineous leaf. 
Blanched. The whitened appearance which vegetation as¬ 
sumes in the prolonged absence of light. 
Bland. Lovely, fair. 
Blight. A vague term applied to all diseases of plants. 
Bole. The trunk of a tree. 
