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Leaves solid, without any distinct nerve; flower-stalks 
often an inch long; (Teesdale). 
uligino’sa. 
Leaves distinctly 3-nerved, at least in their lower part, 
near where they meet the stem; flower-stalks a 
over 3 inch. 
Petals as long as, or longer than the sepals; flowers 
26 over } inch across. ) 
L ver’na.~ 
Petals not nearly as long as the sepals; flowers 
under } inch. } 
tenuifo'lia. 
ARTEMISA. 
Leaves with bluntish segments, whitish, and silky or 
woolly, on both surfaces. 
fe orien of the leaves $ inch wide or more ; plant, 
| very aromatic. 
Absin'thium. Wormwood 2 
\ Segments of the leaves numerous and very narrow > 
plant scarcely aromatic. 
marit'‘ima.~ 
Leaf-segments acute, green and scarcely hairy above. 
Leaf-segments widish, sharply pointed, and toothed ;- 
flower-heads woolly, erect. | 
vulgaris. Mugwort 2 
Leaf segments few, very narrow; flower-heads not 
woolly, drooping. 
campestris. 
ASPER’'ULA. 
Leaves very narrow, 4 together in a whorl (2 of them~ 
often very small); fruits not hairy. 
cynan'chica. Squinancy-wort. 
Upper leaves 7-9 ina whorl, wider; fruits covered with 
hooked hairs. } 
odora'ta. Wood-ruff. 
AS'TER. 
Bracts surrounding the flower-heads oblong, blunt; outer 
florets (usually) lilac and radiating. 
Tripolium. Sea Aster. 
Bracts of the flower-heads very narrow, pointed; florets 
all yellow, none of them radiating. 
LinosyTris. Goldilocks. 
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