biciliate 
pijugate 
two heads or two supports ; bici- 
Viate, bicilia’tus (ciliwm, aneyelash), 
with two cilia, as many zoospores ; 
bicollat’eral (con,+ latus, lateris, 
side), applied to a vascular bundle 
with two groups of phloém lying 
upon opposite sides of the xylem ; 
Bicollateral'ity, is the state just 
described. 
bicolor (Lat.) two-coloured, parti- 
coloured. 
biconcen’tric (bi, con + centrum, a 
point), Poulsen’s term for the fibro- 
vascular bundles in Eriocauloneae ; 
round the axial hadrome bundle is 
a layer of leptome, which is again 
enclosed by a hadrome layer; bi- 
con'jugate, biconjuga’tus, (conjuga- 
tus, joined), twice-conjugate, that 
is, when each of two secondary 
petioles bears a pair of leaflets; 
biconjuga’to-pinna’tus, similar to 
the last, but each petiole pinnate ; 
Bicor’nes (cornu, ahora), the heaths, 
from their horned anthers ; bicor’nis 
(Lat.) bicorn’ute, bicornu'tus, two- 
horned, as the siliqua of Matthiola 
bicornis, DC.; bicre’nate (crena, a 
notch) (1) having two crenatures or 
rounded teeth (Crozier) ; (2) doubly 
crenate ; bicru’ris (Lat.) two legged, 
as the pollen-masses of Asclepiads ; 
bicusp’id (cuspis, spear-point) ; bi- 
cusp’idate, having two sharp points; 
bident’ate, bidenta’tus (dens, dentis, 
a tooth), (1) having two teeth ; (2) 
doubly dentate, as when the mar- 
ginal teeth are also toothed ; bi- 
digita’tus (Lat.)=BICONJUGATE. 
bid'uous, biduus (biduum, two days 
long), lasting for two days. 
Bienn‘ial, (biennium, a period of two 
years), a plant which requires two 
years to complete its life-cycle, 
growing one year, and flowering 
and fruiting the second ; signs @) or 
©); bien’nial, biennis= monocarpic. 
Biere’mus (bi, twice, eremus, a hermit), 
a two-celled fruit, the cells so far 
apart as to seem separate, as in 
Cerinthe; bifa' cial ( facies,an appear- 
ance), when the leaf has spongy 
32 
tissue on the lower face, and com- 
pact tissue on the upper sides; 
opposed to centric. 
bifa’riam (Lat. in two parts), arranged 
in two rows ;~imbrica’tus, imbri- 
cated in two rows; bifa’rious, bi- 
Jo'rius, distichous. 
Bi'fer (bi, fero, I bear), a plant which 
ripens fruit twice a year (Crozier) ; 
biferous, biferus, double bearing, 
producing two crops in one season ; 
bi'fid, bi7'rdus ( findo, fidi, to cleave), 
twice-cleft, divided halfway into 
two; bif'idate = bifid (Crozier) ; 
bifist’ular (fistula, a pipe), with 
two tubular openings (Crozier) ; 
biflor’ate (Crozier), biflor’ous, -rus 
(ie, floris, a flower), having two 
owers; bifo'liate, iifolia’tus (fo- 
lium, a leaf), two-leaved ; bifo’lio- 
late, bifoliola’tus, having two leaf- 
lets; ~ Leaf, binate ; bifollic’ular, 
possessing a Bifollic’ulus (follicu- 
lus, a small sack), a double follicle. 
bifo'rate, bifora’tus (biforis, having 
two doors), with two perforations ; 
Biforine, an oblong cell, opening at 
each end, containing raphides ; 
pifo’rous = biforate. 
biform’is (Lat.), two formed ; in two 
shapes. 
bi'frons (Lat.), (1) having two faces 
or aspects; (2) growing on both 
surfaces of a leaf, amphigenous. 
bifure’ate, bifurca'tus (bifurcus, two- 
pronged or forked), twice forked ; 
Bifurca’tion, division into two 
branches. 
bigem’inate, bigemina’tus (geminus, 
a twin) =BICONJUGATE ; bigem’inus, 
in two pairs, as in the placentae of 
many plants. 
Bi’gener (Lat. a hybrid), mule plants 
obtained by crossing different 
genera, usually spoken of as a 
bigeneric Cross. 
bigland'ular (bi, two, glandula, a 
gland), with two glands, 
biglu’mis (g/wma, a husk), consisting 
of two glumes, the components of 
the perianth of grasses ; bihila’tus 
+ (+Hitvum), having two scars as 
in certain pollen ; biju’gate bijuga’- 
