232 



Spbaerozosma 



excavatum, Unlfs. 



pulchrcm, Buileij. 

 serratum, BaiUij. 



Hyalotheoa 



disilliens, Smith. 



mucosa, Merl, 



GEOGRAPHICAL LIST OF SPECIE S. 



Ilah. Rboile Island ; South 



Carolina ; Georgia ;, Florida. 



llah. New York ; New Jersey. 



Huh. South Carolina ; Georgia ; 



Florida. 



Hub. Rhode Island; Pennsyl- 

 vania ; South Carolina ; Florida. 

 Hah. Rhode Island. 



Desmidinm 



aptogoniiuii,' Viieh. Ilab. South Carolina ; Georgia, 

 quadrangulatum, Ktz. JM'. South Carolina. 



Swartzii, Ag. Ilah. Atlantic States. 



Aptogonium 



Baileyi, Ralfs. 



Cosmarium 



amoenum, Bri'b. 

 bioculatum, Dr^b, 

 Botrytis, Bnry. 

 Brebissonii, Men. 



Broomei, Tliw. 

 caelatnin, Ralfs. 



commissurale, Bri'b. 



connatum, Brib. 

 creuatum, Ralfs. 

 cucuniis, Corda. 



Euastmm. 



binale, Tiirp. 



circulare, Hassal. 

 crassum, Brib, 

 Didelta, Turp. 



depressum, Raileij. 

 margaritiferum, Turp 



Menegbenii, Bri'b. 

 ornatum, Ralfs. 

 ovale, Ralfs. 

 pyramidatum, Brt'b 



Quimbyii, ^yoo(l. 

 snblobatum, Brib, 



suborbiculare, H'rwr/. 



ti'tropthalmum, Klz. 

 Tbwatesii, Ralfs. 

 uudulatum, Corda. 



EnastTnin 



affine, Ralfs. 

 ampuUaceum, Ralfs. 



Ilah. Rhode Island ; New Jersey. 



Ilab. Florida ; Rhode Island 

 Hab. Rhode Island. 

 Ilab, Pennsylvania. 



Hub. White Mountains, New 



Hampshire. 

 Ilab. Pennsylvania ; Georgia. 

 Ilab. near Albany, New York ; 

 South Carolina. 

 Ilah. White Mountains, New 

 Hampshire. 

 Ilab. Florida. 

 Ilab. Rhode Island. 

 Ilab. New Hampshire ; Pennsyl- 

 vania ; South Carolina ; 

 Georgia; Florida. 



Hab. Florida. 

 Hab. Pennsylvania ; South 

 Carolina; Florida; Mexico. 

 Hah. Pennsylvania. 

 Hab. Rhode Island. 

 Hah. Pennsylvania. 

 Hah. Pennsylvania ; Georgia ; 

 Florida. 

 Ilab. near Philadelphia. 

 Hah. Rhode Island ; Georgia ; 

 Florida. 

 Hah. Lake Saco, New Hamp- 

 shire. 

 Hab. New Jersey. 

 Hah. Florida. 

 Hab. Rhode Island ; South 

 Carolina? 



Hab. South Carolina : Georgia. 

 Hab. South Carolina ; Florida. 



elegans, Brih. 

 gemmatum, Brib. 

 insigne, Ralfs. 

 multilobatum, Wood, 



ohiongum, GreviHe. 

 ornatum, TI ood. 

 Ralfsii, Jiabeiih. 



verrncosum, Ehr. 



Ilah. Florida ; Pennsylvania; Rhode 

 Island. 

 Hab. Rhode Island. 

 Hah. United States. 

 Hah. South Carolina ; Georgia ; 

 Pennsylvania ; Rhode Island. 

 Hab, United States. 

 Hah, Rhode Island. 

 Hab. Florida ; Rhode Island. 

 Hab. Saco Lake, New Hamp- 

 shire. 

 Hab. Rhode Island. 

 Hab. Saco Lake, New Hampshire. 

 Hab. South Carolina ; New Hamp- 

 shire ; Rhode Island. 

 Hah. Rhode Island ; South 

 Carolina ; Georgia; Florida. 



Micrasterlas 



Americana, Ehrb. 



arcuata, Bailey. 

 Baileyi, Ralfs, 



denticulata, Breb. 

 disputata. Wood, 

 expansa, Bailey. 

 fimbriata, Ralfs. 

 foliacea, Bailey. 

 furcata, Ag. 

 granulata, Wood, 

 Jenneri, Ralfs, 

 oscitans, Ralfs. 

 papillifera, Breb, 

 pinnatiflda, Kiz. 

 quadrata, Bailey. 

 radiosa, Ag. 

 ringens, Bailey, 

 Torreyi, Bailey, 

 truncata, Corda, 



Hab. Florida; South Carolina. 



Hab. Florida. 



Hab. New York ; Rhode Island ; 



South Carolina ; Florida. 



Hab, Pennsylvania; Florida. 



Hab. Atlantic States. 



Hah. Florida. 



Hab. South Carolina ; f lorida. 



J3a(i. Worden's Pond, Rhode Island. 



Hab. Atlantic States. 



Hab. South Carolina. 



Hah. near Philadelphia. 



Hab. Florida ; Rhode Island. 



Hab. Florida ; Rhode Island, 



Hah, 



Hah. Florida. 



Eab. Florida. 



Hah. Florida. 



Hab. near Princeton, New Jersey. 



Hab. Atlantic States. 



Staurastrum 



alternans, Brib 



arachne, Ralfs. 

 aristiferuQi, Ralfs. 

 Cerberus, Bailey, 

 crenatum, Bailey, 



Hab. Georgia ; Florida ; Rhode 

 Island. 



Hab. Saco Lake, New Hampshire. 



Hah. Georgia ; Rhode Island. 



Hah. Florida. 



Hab. Rhode Island. 



cyrtocerum, rar., Brib. Hab. Florida. 



dejectum, Brib. Hab. New York ; South Caro- 



lina. 



dilatatum, Ehh. Ilab. Southern Atlantic States. 

 eustephanum, Ralfs. Hab. West Point, New York, 

 furcigerum, Brib, Hah. South Carolina; Florda; 



Rhode Island. 



