1 6 NATURAL HISTORY AND TOPOGRAPHY OF GROTON, MASS. 



Fringed Gentian. Gentiana crinita. Meadows. September 20. 



Closed Gentian. Gentiana Andrewsii. Elm Avenue. August 25. 



Buckbean. Menyanthes trifoliata. North End. May 15. 



Forget-me-not. Myosotis palustris. James's Brook. May 18. 



Common Comfrey. Symphytum officinale. Broad Meadow. May 12. 



Blue-weed. Echium vulgare. Roadsides. June 9. 



Hedge Bindweed. Bracted Bindweed. Convolvulus sepium. 

 Nashua River bank. June 25. 



Bindweed. Convolvulus arvensis. Ditches. August 1. 



Dodder. Love Vine. Cuscuta Gronovii. Roadsides. Quaso- 

 ponagon meadows. August 8. 



Bittersweet. Solanum Dulcamara. Brooks and river banks. June 4. 



Common Nightshade. Solanum nigrum. Waste places. August 16. 



Common Stramonium. Thorn Apple. Datura Stramonium. Waste 

 places. August 16. 



Purple Thorn Apple. Datura Tatula. Waste places. August 16. 



Common Mullein. Verbascum Thapsus. Roadsides. July 1 . 



Moth Mullein. Verbascum Blattaria. Roadsides. July. 



Butter and Eggs. Ramstead. Linaria vulgaris. Roadsides. 

 June 27. 



Toadflax. Linaria Canadensis. Roadsides. August 10. 



Turtle-head. Snake-head. Chelone glabra. Quasoponagon mead- 

 ows. August 10. 



Monkey-Flower. Mimulus ringens. Meadows. July 20. 



False Pimpernel. Ilysanthes riparia. Nashua River bank. 

 August 30. 



Water Speedwell. Veronica Americana. Brooks. June 13. 



Marsh Speedwell. Veronica scutellata. Brooksides. June 4. 



Thyme-Leaved Speedwell. Veronica serpyllifolia. Roadsides. 

 May 19. 



Downy False Foxglove. Gerardia flava. Black Pond. August 21. 



Smooth False Foxglove. Gerardia quercifolia. Oak Grove. July 25. 



Purple Gerardia. Gerardia purpurea. Long Hill. Roadsides. 

 August 2. 



Gerardia pedicularia. Dry places. July 22. 



Scarlet Painted-Cup. Castilleia coccinea. Chicopee Row. May 20. 



Wood Betony. Pedicularis Canadensis. Meadow. May 7. 



Cow- Wheat. Melampyrum Americanum. Woods. June 27. 



American Squaw-Root. Cancer-Root. Conopholis Americana. 

 Woods and roadsides. May 18. Rare. 



