Teacher's Leaflet. 



I20I 



Winter rosette oj the orange hawkwecd 



piece, like a milkweed 

 leaf, or divided to the 

 midrib into many- 

 small feathery leaflets, 

 like the yarrow (pin- 

 nate) , or divided down 

 to the main stem, 

 like the little " five- 

 finger" or cinquefoil 

 (palmate) ? Are the 

 leaves notched or 

 lobed, toothed or 

 scalloped, or entire at 

 the edges? Are they 

 rough or smooth, 

 clothed with hair or 

 wool on either surface, 

 and are the ribs and 

 veins small or large 

 and prominent; do the 



upper and under sides differ in color or texture? Do the leaves seem 

 stiff and dry or tender and juicy? Have the juices of the stems and 

 leaves any bitter, sour, or biting taste which might protect them from 

 grazing animals? Are the leaves and stems destroyed by the frost or 

 do they remain green through the winter? What is the most com- 

 mon arrangement of the leaves of the weeds whose roots survive the 

 winter? What should you consider the best means of getting rid of 

 such weeds as are able to store up food for the future in their roots 

 or in rosettes of green leaves? 



(9). About how early does the weed begin to blossom and how long 

 is its season of bloom? Do the flowers grow m the axils of the leaves 

 or at the tips of stem and branches? Do they grow singly or in spikes, 

 clusters, or umbels? Are the individual flowers beautiful in shape or 

 color, and have they any odor, either pleasant or disagreeable ? Describe 

 as well as you can, the parts of the flower: the calyx or green cup at its 

 base, if it has one; the petals, which are usually, but not always, the 

 bright-colored parts of a flower; the pistil, which is the seed-bearing 

 part; and the stamens which bear the pollen. Sometimes these latter 

 two organs are borne on different plants, as in the field sorrel. But 

 whether on the same or different plants, the pollen must reach the 

 stigma at the pistil's tip before the seed can begin to grow. Sometimes 



