79 



Strsani V e;?etat i nn Aurust 8. 1900 . 

 . Vegetation along a flowiug stream chan£;es very much frora 

 various causes. Chief among these is the drainage whether the 

 stream flows rapidly or slowly. Another is differejice in the 

 depth flora, which sometimes grows to the very edge of the water 

 and still anoyher the difference in temperature. 



First Region . 

 From the spring" where the streaja flows nor 3 rapidly. Around tlie 

 source we found a quantity of Sagina procumhens which alwa^'^s grows 

 best in a cool, shady place. 



Sagina procumbens. Lycopus virginicus. Eupator^^m purptireTim, 



Joe-Pye weed. ©ipatorura perfoliatum, Boneset. Viola miciillata 

 (with cleistagomous flowers). Irapatiens fulva. Alnus. 



Symplocarpus foetidus. Chrysospleniura, Golden Saxifrage. 



SegQAa Rg^iQA. 

 TiQiere the stream began to slow up. 

 1. Sphagnum. 2. p_nbmis hispidus. 3. Viburnum. 4. Apios tuberosa. 



5. Polygonum arifoli^ira, Halbert-leaved Tear-thumb. 



6. Polygonium sagittatura. Arrow-leaved Tear-th^^rab. 7. Osmunda. 

 8. Glyceria nervata, grass (fowl meadow). 9. Spilobiura coloratiira. 

 10. Carex intumescens, sedge. 11. Scutellaria laterifolia, 

 ,Mad-dog Skullcap. 12. Chelone glabra. 13. G-aliuji trifidura, var., 

 latifolium. Small Bedstraw. 14. viola blanda. 15. Eloides 

 carapanulata. 



