Potemorotonacese.s 
“nn 
rar re] 
rerenn1a 
acquatic plants with 
of a form, 
cylindrical spikes or in smal 
flovrers sometimes in a 
fi 
cistinet carvels, lechambered 
Pondiweed 
slowers verfoct or monoecior 
exillery clusterse 
es eo eet, heat 
vnin membranous sneatn, 
ramily, 
submerced lesves or sone floating, these 
oe 
Ne) 
in compact usually emersed 
Prorer perianth none, the 
otemens 1 or 4, Pistils of 
and l-ovuled, forming small drupelets or 
O Flovcrs :onoccious; stemens solitery; ovaries 2-5 in snall 
Pe a Deas an a £ $b. Sera he Laer ¢ 
axililory clusters$ fruits more than twice as lone as 
( Flowers nerfects; stemens 
evlindricel svike 
I. Zennichellia L. 
70Site, leveined, ocaninete and 
3 
otens slender, branching from creeping 
pistillete flowers together in 
1. Zannichellia 
a in 
£, in axillary usually 
ce Potemozeton 
Horned Pondyweed,. 
rootstocks; lesves “iliforn, 
ow 
wo. 
axillary clusters without a “rover perisnth but enclosed in the wd by s 
thin membrane; staminete solitary, Consisting of a solitary 2-chambcred 
stamens; vistillate 
@) exrfnded then into 2 
ye er lee s = Dave Asate had 
stivules scarious, frce; nutlets { 
Ginoped bv the persistent stvle 
ceo, overy flaskeshaned, taperin; 
» linear, 2=<5 
2 Time long, shaned somewh: 
1mm. long, elevated upon 
into 2 short style, 
o 
| as 
smell nutlet, 
is 
59 
ct 
oe | 
a 
SS) 
— 
ry 
e 
oO 
I 
Ww 
+ 
=| 
DP 
® 
~~ 
to breekish weter" 
Ra 
Ant Brel on tt 
