biperennial 
Bladder 
two shield-shaped parts (Crozier) ; 
biperen’nial (perennis, perpetual), 
used of a part that lives two years, 
but reproduces itself indefinitely 
(Crozier) ; bipet’alous (méradov, a 
flower leaf), Blair’s term for two- 
petalled flowers as Circaea ; bipen- 
taphyll’us (zévr7, five ; puddov, 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 ; bipinnat/ifid, bipinnati/- 
idus, when the divisions of a 
pinnatifid leaf are themselves pin- 
natifid; 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; bipo’lar 
(polus, the end of an axis), having 
two poles, the usual number in 
nuclear division; bipolymor’ious + 
(odds, many ; “dptov, a small por- 
tion), consisting of two or many 
parts ; bipo’rose, biporo'sus (porus, 
channel), opening by two pores 
as the anthers in Hrica ; biprophyl- 
la‘tus (+PrRopHyiLa) 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; coctus, 
cooked; forma, shape), biscuit- 
shaped, applied by Koerber to some 
Lichen-spores. 
bisep’tate,bisepta’tus (bi, two, septum, a 
wall), having two partitions ; bise’- 
rial, biseria‘lis, bise’riate, biseria'tus 
(serves, 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’- 
34 
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 ; ~ 
Hered’ity, transmission of qualities 
of both parents; bispathel’lulate, 
bispathellula'tus t ( + SPATHELLA), 
consisting of two glumes (Lindley), 
bispi’nose (spino’sus, thorny), having 
two spines; bispi'rous (o7eipa, a 
twist), term used by Spruce for 
elaters having two spirals, cf. Dis- 
PIROUS; Bi'spore (c7opa, seed), (1) ‘a 
two-spored tetraspore” (Crozier); 
(2) an ascus with two cells, in place 
of the normal eight; biste’lic (or7jAy, 
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; 
bisule’ate, brsulca’tus (sulcus, a 
groove), two-grooved; bisymmet’ric 
(ctpperpos,commensurate), bilateral 
symmetric, each side alike; Biteg- 
mina'tae (fegmen, 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 
twovalves ; (2) the indusiaof certain 
ferns, as Dicksonia ; bival’vular= 
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 
