90 STATE HORTICULTURAL SOCIETY 



DESMIDIACEuE FAMILY. DESMIDS. 



SPIROT^NIA, Breb. 



1097. 8. condensata, Breb. 

 Slough. 



PENIUM, Breb. 



1098. P. closterioides, Ralfs. 



In stagnant pool by water's edge. 

 CLOSTERIUM, Nitsch. 



1099. C. lanceolatum, Kuetz. 



1100. C. acerosum, Ehrenb. 

 In ponds. 



1101. C. lunula, Nitzseh. 



1102. C. jenneri, Ralfs. 

 Ponds and slough. 



1103. C. diance, Ehrenb. 

 Slough, amid Utricularia. 



1104. C. acuminatum, Kuetz. 

 Slough, amid decaying rushes. 



1105. C. moniliferum, Reinsch. 

 Stagnant pool, rain barrel and slough. 



DOCIDIUM, Breb. 



1106. D. baculum, Breb. 

 Ponds. 



PLEUROT^NIUM. 



1107. P. trabeculce, (Ehrenb.) Naeg. 



Slough, amid Utricularia; amid decaying rushes. 

 COSMARIUM, Corda. 



1108. C. leve, Rabenh. 



1109. C. meneghinii, var. concinum, Rabenh. 



1110. C. undulatum, Corda. 



1111. C. uriludatum, var. crenulentum. 

 Slough. 



1112. C. margaritiferum, Menegh. 



1113. C. ~botrytis, Menegh. 



1114. C. notidbile, Hansg. 



