PLA- 
evel ; 5 ferme, shape.] With nearly 
gl ; 5 tht certain pre re 
tion ee 
Plankto (pla ngk’tén) z [Gk. 
plangkios, wanderin The animal 
_throu 
locomotory pow bbe 
planoblast (plan’oblast) nt. ee 
planos, wandering ; 4dlastos, bud.] 
A free-swimming hydroid individual 
planogamete oe ‘peel mn. [Gk 
lano mete, a 
‘iotite proto- 
of Algae 
Gta ited 
plast or microzoospore 
ot.). 
geome? pans ont) z [Gk. planos, 
a The Lapa amoebula- 
the foot.] The sole of the foot ; 
the first tarsal joint of ape 
of the foot i te 
plantula (p ae tila) 2 ite ‘Plantule 
a small so. The empodium 
pulvillus of bias ool Je 
ula (plan ee [L. planus, 
The ord young free- 
By 8 
swimming ae of Coelenterates 
ge 
leucocytes and c 
8 ape generally 
——— ik) a. [Gk. 
s ueminsts 
formed.] Pert. 
rous (plazmatop pues = 
i for 
grape mildew and ether Plasmopara 
(07.). 
243 
PLA- 
Terres i |) mt, 
eg toa [Gk. 
ething formed; 4yéos, 
D modium (plazmd'diim) 2. ‘ 
plasma, a mould ; eédos, form.] A 
collection of amoeboid gerne 
without nuclear fus a ; the 
protoplasm of Myxomycetes bial . 
plasmogamy,—plastogamy 
sa pe A erie isis) # [Gk 
plas ; lysis, a loosing. ] 
bee eiancwal of water from pl 
ant 
protoplasm, ae contraction of 
cell walls (d0¢ ). 
plasmosome oad mésom) 7. 
[Gk. 
‘asma, a mould; soma, sie 
The true scsi ; of. karyos 
(cyt). 
plasmotomy (plizmét'émi) 2. [Gk. 
plasma, a mould ; aon a casters 
m by cleav- 
a biop hore. See 
plastic a List) a. oe plastos, 
form Formative ; apf/. sub- 
ace used in forming or bailding 
up tissues or organ appl. torce 
aie gives matter ge form 
plastid ( las'tid) 2. [Gk. Jlaséos, 
form ay A cell-body other than 
rr ee or cence (cy?.). 
plastido anes ea e axial organ 
of Echin s (za 
— (pis sitidil) 1 iy " (Gk. plastos, 
formed.] The ultimate vital unit ; 
a plasoine or bio hore. See hypo- 
thetical units. 
—. wiplie tin) # [Gk. P/astos, 
form substance found in the 
notora et cells (cyt). 
plastodynamia (plas’ epee ia) 4. 
[Gk. Alastos, form dynamis, 
; 
Plastic or Esatiee force 
