336 GLOSSARY. 



Barbdlate : having short, stiff hairs, as the pappus of some Com-: 

 positffi. 



Sark : that part of the stem or trunk external to the wood. 



Jiasal : attached or belonging to tlie base. 



Bane : that part of an organ by which it is attached. 



Basidiospore : a spore, as in the Mushrooms, which is supported by 

 a little pedicel of the basidium. 



Basidium : the enlarged terminal portion of the hymenial hyphse, 

 bearing spores on sterigmata. 



Basipetal : towards or approaching the base. 



Baal, or Bass : the inner fibrous bark. 



Bast-cells : the long-pointed thick-walled cells of bast. 



Beaked : terminating by a long narrow tip or beak. 



jBen-y: a pulpy or juicy fruit. 



Bi, or Bis (as a prefix) : two ; as bilobed (two-lobed), bifid (two- 

 cleft). , _ . 



Biennial : lasting two years ; fruiting and dying the second year. 



Bifid : two-cleft to near the middle. 



Bifoliate : with two leaflets. 



Bifurcate : forked into two branches ; twice forked. 



Bilabiate : two-lipped (labiate). 



Bilocular : two-celled, or having two cavities. 



Binary : composed of two elements ; in two's. 



Binomial nomenclatwe : naming by two (the generic and specific) 

 names. 



Biology : the science which treats of plants and animals. 



Bipartite : two-parted. 



Bipinnate : twice pinnate. 



Bipinnatifid : twice pinnatifid. 



Bisected: cut in two ; divided in two parts. 



Biseptale : having two partitions. 



Bisexual: having both stamens and pistils (hermaphrodite). 



Bisulcate : two-grooved ; having two furrows. 



Blade : the thin expanded portion of a leaf (lamina). 



Bloom : the fine white powder (of wax) on some leaves. 



Botanical Province : a geographical region having charac1;eristic 

 groups of plants. 



Botany : the science which treats of plants. 



Botryose: of the racemose type. 



Bract : small leaf or scale from whose axil a flower or pedicel pro- 

 ceeds ; the reduced leaves in a flower-cluster, etc. 



Bracteate : having bracts. 



Bracteolate : having bractlets. 



Bracilet : the bract or scale situated on the pedicel. 



Branches : the divisions of a stem or trunk ; limbs. 



Branchlets : very small branches ; divisions of a branch. 



Breathing pores : stomates. 



Bristle : stiff, sharp hair. 



Bristly : having bristles. 



Bryology : that division of botany which treats of Mosses. 



