PLANTS OF RHODE ISLAND. 109 



9. Cucumis, Ehrh. Common, 



10. acerosum, (Schrank). Pocasset, Spectecle Pond, &c. 



11. ensis, Delpont. Providence. 



12. turgidum, Ehrh. Providence, Mr. Lathrop. 



13. strigosum, Ehrh. Common. 



14. striolatum, Ehrh. Common. No. 160. 



15. costatum, Corda. Providence, &c. 



16. lineatum, Ehrh. Spectacle Pond, &c. 



17. areolatum, Wood. Rare, Spectacle Pond. 



18. Dianse, Ehrh. Quidnessett, &c. 



19. acuminatum, Kg., var. minor. Providence. 



20. Jenneri, Ealfs. Common. 



21. Venus, Kg. Blackamore and Spectacle Ponds. 



22. parvulum, Xaegr. Common. 



23. moniliferum, Ehrh. Spectacle Pond, &c. No. 159. 



24. Leiblinii, Kg. Providence, 3/r. Lathrop ; Quidnessett, &c. 



25. rostratum, Ehrh. Scarce in Spectacle Pond ; Providence, 



Mr. Lathrop. 



26. Kuetzingii, Breb. Davis^^lle; Pro\adence, Mr. Lathrop. 



27. setaceum, Ehrh. Providence, &c. 



DOCIDIUM, Breb. 



1. crenulatum, (Ehrh.) Lonsdale Pond. 



D. nodufosum, Balfs. Alg. PJiod. No. 152. 



2. Trabecula, (Ehrh.) Naegr. Providence, <S:c. 



3. truncatum, Breb. Providence, Quidnessett. 



4. Baculum, (Breb.) D. By. Common. No. 53. 



5. coronatum, Kab. Among Charas in Spectacle Pond. 



6. constrictum, Bailey. Wordeu's Pond; Prof . J. W.Bailey. 



No. 155. 



7. nodosum, Bailey. Prof. J. W. Bailey. No. 154. 



8. verrucosum, (Bailey,) Pialfs. Prof. J. W. Bailey. No. 156. 



9. dilatatum, (Cleve.) Lund. Providence. 



10. minutum, Ealfs. Providence. 



11. verticillatum, Bailey. Worden's Pond, Pro/. J. IV. Bailey, 



Providence, &e. No. 157. 



12. gracile, Bailey. Providence, &c. 



13. rectum, Delp. Providence. 



14. Archeri, Delp. Spectacle Pond. 



CALOCYLINDNRUS, D. By. 

 1. Cucurbita, (Breb.) Kirch. Providence. 



Cosmarium, — , Balfs. Alg. Rhod. No. 140. 

 2 curtus, (Breb.) Kirch. Spectacle Pond. 



*\'ar. ? . Blackamore Pond. 



* This form is quite narrow, but of equal length with type. 



