biperennial 



Bladder 



two shield-shaped parts (Crozier) j 

 biperen'nial (perennis, perpetual), 

 used of a part that lives two years, 

 but reproduces itself indefinitely 

 (Crozier) ; bipet'alous (TreraXov, a 

 flower leaf), Blair's term for two- 

 petalled flowers as Circaea ; bipen- 

 taphyll'us (Trwrr), five ; <f)v\\ov, leaf), 

 having from two to five leaflets. 



bi'pes (Lat., two-footed) = BiCRURis. 



bipin'nate, bipinna'tus (pinnatus, fea- 

 thered), when both primary and 

 secondary divisions of a leaf are 

 pinnate ; bipinnatlfid, bipinnatif- 

 idus, when the divisions of a 

 pinnatifid leaf are themselves pin- 

 natifid j bipinnatipart'ed = bipin- 

 natifid ; bipinnat'isect, bipinnati- 

 sect'us (sectus, cut) = bipinnate ; bi'- 

 plicate, biplica'tus (plico, I fold), 

 doubly folded in a transverse 

 manner, as some cotyledons; bipolar 

 (polus, the end of an axis), having 

 two poles, the usual number in 

 nuclear division ; bipolymorlous 

 (iroXfc, many ; jjiopiov, a small por- 

 tion), consisting of two or many 

 parts ; bipo'rose, biporo'sus (porus, 

 channel), opening by two pores 

 as the anthers in Erica ; biprophyl- 

 la'tus ( + PROPHYLLA) Buchenau's 

 term for possessing two prophylla 

 (Vorblatter) ; bipunc'tate, (punc- 

 tum, a point), having two spots ; 

 bira'diate, biradia'tus (radius, the 

 spoke of a wheel), of two rays, 

 as in certain umbels ; biri'mose, 

 birimo'sus (rima,a, chink), opening 

 by two slits, as most anthers ; 

 bisac'cate (saccus, a bag), having 

 two pouches. 



biscoctiform'is (bis, twice ; cactus, 

 cooked ; forma, shape), biscuit- 

 shaped, applied by Koerber to some 

 Lichen-spores. 



bisep'tate ; ?Msepta'w3 (6i,two, septum, a 

 wall), having two partitions ; bise'- 

 rial, biseria'lis, bise'riate, biseria'tus 

 (series, a succession), arranged in 

 two rows as on a flat surface ; 

 biser'rate, biserra'tus (serra, a saw), 

 twice serrate, as when the serra- 

 tures are themselves serrate ; bise'- 



tose, bise'tous (seta, a bristle), with 

 two bristles; bisex'ual, bisex- 

 ua'lis (sexus, sex), having both sta- 

 mens and pistils, possessing perfect, 

 that is, hermaphrodite flowers ; ~> 

 Heredity, transmission of qualities 

 of both parents ; bispathellulate, 

 bispathellula'tus J ( + SPATHELLA), 

 consisting of two glumes (Lindley). 



bispi'uose (spino'sus, thorny), having 

 two spines; bispi'rous (ffiretpd, a 

 twist), term used by Spruce for 

 elaters having two spirals, cf. DIS- 

 PIROUS; Bi' spore (o-Tro/xi, seed),(l) "a 

 two-spored tetraspore" (Crozier); 

 (2) an ascus with two cells, in place 

 of the normal eight; bistelic (O-T^XTJ, 

 a pillar), having two steles ; bistip' 

 ulate( + STIPULA), with two stipules; 

 bistra'tose (stratum, a layer), cells 

 disposed in two strata or layers ; 

 bistri'ate (striatus, striped), marked 

 with two parallel lines or striae ; 

 bisulc'ate, bisulca'tus (sulcus, a 

 groove), two-grooved; bisymmet'ric 

 (o-tf/ijueTTw, commensurate), bilateral 

 symmetric, each side alike ; Biteg- 

 mina'tae (tegmen, a cover), Van 

 Tieghem uses this for Phanerogams 

 whose seeds have double integu- 

 ments ; bitern'ate, biterna'tus (tern- 

 us, by threes), compound ternate, 

 as a leaf. 



bit'ten, abruptly ended, of roots or 

 leaves, praemorse. 



bi' valve bival'vis (bi, two, valvae, leaves 

 of a door), having two valves, as 

 some capsules ; Bi' valve, "a capsule 

 of two valves" (Crozier) ; bival'ved, 



(1) used of Diatoms, as possessing 

 two valves ; (2) the indusiaof certain 

 ferns, as Dicksonia ; bivaTvular= 

 BIVALVE; bivasc'ular (vasculum, a 

 vessel), with two vessels ; bivit'tate 

 (vittae, fillets), having two parti- 

 tions which appear as bands or 

 fillets. 



Blad'der, (1) Grew's term for a cell; 



(2) a hollow membranous appendage 

 on the roots of Utricularia, which 

 entrap water insects ; (3) similar 

 growths in the frond of some Algae, 

 serving as floats ; (4) an inflated 



34 



