10g 
POLYGONA'TUM. 
Leaves in whorls of 3, 4, or 5 at the same level on the 
f stem. } 
L verticilla'tum. 
Leaves not in whorls. 
Stem round; flowers usually 2—5 together ; pee IN 
with the filaments hairy. h 
> 
multifio’rum. Eines, df 
Stem 4-angled in its upper part; flowers 1 (or 2) TAN 7 
oe sn NY 
together ; filament not hairy. } ; \\ 
officinale. } Wa 
POLYG’ONUM. 
Leaves with projecting angles at their base. 
( eon scarcely winged; stem with fine, raised, foals 
| lines on it under the lens. 5 
Convol'vulus. Slack Lindweed. \ 
CPruit with 3 broad wings on its angles; stem without. 
| raised lines. 
rs 
+ 
\ 
aye 
dumeto'rum./ 
Leaves rounded or tapering at their base. 
_Flowers, either singly, or in little clusters of two or 
) three together, close down in the angles of the 
leaves along the stem. 
Leaves with flat margins; plant growing everywhere ; 
nuts (inside the fruit) rough. 
avicula‘re. <Knotgrass. 
Leaf-margin curved back; maritime plant; nuts 
smooth and polished. 
Se AEN) 
marit‘imum. 
Flowers in elongated spikes or clusters. 
Leaves, especially the lower, with their margins 
| running down in wings on the leaf-stalk. } 
Bistor'ta. Sxakeroot. 
\Leaves without winged stalks. 
Flower-spike solitary and slender, with little red 
| bulbs instead of the lower flowers. _ } 
L Vivip’arum. 
Flower-spikes without little bulbs. 
ema not tapering at their base, often floating A 
flower-spike usually solitary and dense. ee 
a amphib'ium. a 
Leaves narrowed and tapering at their base | r 
spikes usually 2 or more. 
