2Y1 



found iu the older parts of the quarry. (G) The willows aud sycamores are 

 the first trees, both being specially well adapted to the thin soil. 



The following census of plants was made from quarry B by Mr. Guy 

 Wilson: 



1. Typha latifolia L. 



2. .iUisma Plantago aquatica L. 



3. Panicum dichotomum L. 



4. Muhlenbergia sp. 



5. Phleum partense L. 



6. Agrostis alba L. 



7. Cyperus sp . 



8. Carex sp . 



9. Ixophorus glaucus (L.) Nash. 



10. Juucus effusus L. 



11. Juncus tenuis Willd. 



12. Juncus nodosus L. 



13. Salix sp . 



14. Ulmus Americana L. 



15. Rumex crispus L. 



16. Polygonum sp . 



17. Roripa nasturtium (L.) Rusby. 



18. Draba Caroliniana Walt. 



19. Platanus occidentalis L. 



20. Potentilla monspeliensis L. 



21. Pyrus sp. (cultivated). 



22. Melilotus alba Desv. 



23. Trifolium partense L. 



24. Ti'ifolium repens L. 



25. Acalypha gracilens A. Gray. 



26. Euphorbia nutans Lags. 



27. Rhus radicans L. 



28. Impatiens sp . 



29. Onagra Oakesiana (A. Gray) Britton. 



30. Daucus carota L. 



31. Asclepias incarnata L. 



32. Verbena urticifolia L. 



33. Scutellaria lateriflora L. 



34. Prunella vulgaxis L. 



