GLOSSARY AND INDEX. 197 



Biconjugate, twice paired, as when a petiole forks twice. 



Bidtntate, having two teeth (not twice or doubly dentate). 



Biennial, of two years' continuance; springing from the seed one season, flowering 



and dying the next, 38. 



Bifarious, two -ranked; arranged in two rows. 

 Bifid, two-cleft to about the middle. 

 Bifoliolate, a compound leaf of two leaflets, 59. 



Bifurcate, twice forked; or more commonly, forked into two branches. 

 Bijuyate, bearing two pairs (of leaflets, &c.). 

 Bilabiate, two-lipped, as the corolla of Labiatae. 

 Bilamellate, of two plates (lamellae), as the stigma of Mimulus. 

 Bilobed, the same as two-lobed. 

 Bilocellate, when a cell is divided into two loceltt. 

 Bilocular, two-celled; as most anthers, the pod of Foxglove, &c. 

 Binary, in twos. 



Binate, in couples, two together. Bipartite, the Latin form of two-parted. 

 Binodal, of two nodes. 



Binomial, of two words, as the name of genus and species taken together, 180. 

 Bipalmate, twice palmately divided. 

 Biparous, bearing two. 



Bipinnate (leaf), twice pinnate, 58. Bipmnatifid, twice pinnatifid, 57. 

 Bipinnatisect, twice pinnately divided. 

 Biplicate, twice folded together. 



Biserial, or Biseriate, occupying two rows, one within the other. 

 Biserrate, doubly serrate, as when the teeth of a leaf are themselves serrate* 

 Bisexual, having both stamens and pistil. 



Biternate, twice ternate; i. e. principal divisions three, each bearing three leaflets. 5& 

 Bladdery, thin and inflated. 

 Blade of a leaf, its expanded portion, 49. 

 Bloom, the whitish powder on some fruits, leaves, &c. 

 Boat-shaped, concave within and keeled without, in shape like a small boat. 

 Border of corolla, &c., 89. 



Brachiate, with opposite branches at right angles to each other. 

 Brachy-, short, as Brachycarpous, short-fluited, &c. 

 Bract (Bractea), the leaf of an inflorescence. Specially, the bract is the small leal 



or scale from the axil of which a flower or its pedicel proceeds, 73. 

 Bracteate, furnished with bracts. 

 Bracteolate, furnished with bractlets. 

 Bracteose, with numerous or conspicuous bracts. 



Bractlet (Bracteola), or Bracteole, is a bract seated on the pedicel or flower-stalk, 73. 

 Branch, Branching, 27. 

 Breathing-pores, 144. 



Bristles, stiff, sharp hairs, or any very slender bodies of similar appearance. 

 Bristly, beset with bristles. Bristle-pointed, 54. 

 Brunneous, brown. 

 Brush-shaped, see aspergilUform. 

 Bryology, that part of botany which relates to Mosses. 

 Bryophyta, Bryophytes, 163. 



Bud, a branch in its earliest or undeveloped state, 27. Bud-scales, 68. 

 Bulb, a leaf -bud with fleshy scales, usually subterranean, 46. 

 Bulbils, diminutive bulbs. 



Bulbiferous, bearing or producing bulbs. Bulbose or bulbous, bulb-like in shape, &c. 

 Bulblets, small bulbs, borne above ground, 46. 

 Bulb-scales, 46. 



Bullate, appearing as if blistered or bladdery (from bulla, a bubble). 

 Bystaceous, composed of fine flax-like threads. 



