271 



found iu the older parts of the quany. ((5) 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. .Uisma Plantago aquatica L. 



3. Panlcum dichotomum L. 



4. INIuhlenbergia sp. 



5. Phleum partense L. 



6. Agrostis alba L. 



7. Cyperus sp . 



8. Carex sp . 



9. Ixophorus glaucus (L.) Nash. 



10. Juncus effusus L. 



11. Juncus tenuis Willd. 



12. .Tuncus nodosus L. 



13. Salix sp . 



14. Ulmu.s Americana L. 



15. Rumex crispus L. 



16. Polygonum sp . 



17. Roripa nasturtium (L.) Rusby. 



18. Draba Caroliniana Walt. 



19. Platanus occidentalis L. 

 2i). Potentilla monspeliensis L. 



21. Pyrus sp. (cultivated). 



22. JNIelilotus alba Desv. 



23. Trifolium partense L. 



24. Trifolium repens L. 



25. Acalypha gracilens A. Gray. 



26. Euphorbia nutans Lags. 



27. Rhus radicaus L. 



28. Impatiens sp . 



29. Onagra Oakesiana (A. Gray) Britton. 



30. Daucus carota L. 



31. Asclepias incaxnata L. 



32. Vei-bena urticifolia L. 



33. Scutellaria lateriflora L. 



34. I*runella vulgaris L. 



