82 STATE HORTICULTURAL SOCIETY 



990. L. obscura, Kuetz. 



A pond amid bladderwort. 



991. L. subtorulosa, (Breb.) Wolle. (Pkormidium lacustre, 



Naeg.) 

 On moist ground. 



992. L. cataracta, (Rabenh.) Wolle. (Phormidium cata- 



ractum, Rab.) 

 In water. 



993. L. giutinosa, Ag. (Phormidium glutinosum, A. Br.) 

 CHAM^SIPHON, (A. Br.) Grim. 



994. , C. incrustans, Grim. 



Small round celled epiphyte. This form has been col- 

 lected but once, then growing on the surface of some 

 algse, probably an (Edogonium. 



NOSTOCACE.S: FAMILY. 

 NOSTOC, Vauch. 



995. N. muscorum, Agardh. 

 On the stem of mosses. 



996. N. commune, Vaueher. 



A very common algse in the damp margins of marshy 

 places, etc. 



997. N. spcericum, Vaueher. 



998. N. cceruleum, Lyngbye. 

 On mosses. 



'999. N. pruniforme. Agardh. 



Often reaching the size of plum. 

 ANAB^ENA, Bary. 



1000. A. cycadacearum, Reinke. 



Occurring as the cause of the nodular thickenings on 

 the roots of the Cycas revoluta wherever grown. 



1001. A. flos-aquce, Breb. 



One of the most common (together with the next) of 

 the constituents of the plant on many of our lakes 

 at some seasons of the year. Occurs frequently in 

 the sloughs in the northern part of the state also. 



1002. A. circinalis, Rabenh. 

 Very common in the lakes. 



