GLOSSARY. 207 



Biarticulate : twice jointed, or two-jointed ; separating into two pieces. 



Biauriculate : having two ears, as the leaf in fig. 96. 



Bicallose : having two callosities or harder spots. 



Bicdrinate: two-keeled, as the upper palea of Grasses. 



Bicipital (Biceps) : two-headed ; dividing into two parts at the top or bottom. 



Bico'njugate : twice paired, as when a petiole forks twice. 



Bide'ntate: having two teeth (not twice or doubly dentate). 



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



flowering and dying the next ; p. 21. 

 Bifdrioiis : two-ranked ; arranged in two rows. 



Bifid : two-cleft to about the middle, as the petals of Mouse-ear Chickweed. 

 Bifdliolate : a compound leaf of two leaflets ; p. 66. 

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

 Bijugate: bearing two pairs (of leaflets, &c.). 

 Bilabiate: two-lipped, as the corolla of sage, &c., p. 105, fig. 209. 

 Bildmellate : of two plates (lamellce), as the stigma of Mimulus. 

 Bildbed : the same as two-lobed. 

 Bildcular : two-celled ; as most anthers, the pod of Foxglove, most Saxifrages 



(fig. 254), &c. 



Binate : in couples, two together. 

 Bipartite : the Latin form of two-parted ; p. 62. 

 Bipinnate (leaf) : twice pinnate ; p. 66, fig. 130. 

 Bipinndtifid : twice pinnatifid, p. 64; that is, pinnatifid with the lobes again 



pinnatifid. 



Biplicate : twice folded together. 



Biserial, or Bise'riate : occupying two rows, one within the other. 

 Biserrate : doubly serrate, as when the teeth of a leaf, &c. are themselves serrate. 

 Bite'rnate : twice ternate ; i. e. principal divisions 3, each bearing 3 leaflets, c. 

 Bladdery : thin and inflated, like the calyx of Silene inflata. 

 Blade of a leaf: its expanded portion ; p 54. 



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

 Brdchiate: with opposite branches at right angles to each other, as in the 



Maple and Lilac. 

 Bract (Latin, bractea). Bracts, in general, are the leaves of an inflorescence, 



more or less different from ordinary leaves. Specially, the bract is the 



small leaf or scale from the axil of which a flower or its pedicel proceeds ; 



p. 78 ; and a 



Bractlet (bracteola) is a bract seated on the pedicel or flower-stalk; p. 78, fig. 156. 

 Branch, p. 20, 36. 



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

 Bristly : beset with bristles. 

 Brush-shaped: see aspergilliform. 

 Bryology : that part of Botany which relates to Mosses. 

 Bud: a branch in its earliest or undeveloped state ; p. 20. 

 Bud-scales, p. 22, 50. 



Bulb: a leaf-bud with fleshy scales, usually subterranean ; p. 45, fig. 73. 

 Bu/biferous : bearing or producing bulbs. 

 Bulbose or bulbous : bulb-like in shape, c. 



