CATALOGUE. 75 



CERATOPHYLLACE^. 



Hornwort Family. 



1232. Ceratophyllum demersum, L. Hornwort. 



Jackson, (Bush), Pike, (Pech). 



CALLITRICHACE^. 

 Water Starwort Family. 



1233. Callitriche Austini, Engelm. Water Starwort. 



''Missouri," (Gray's Manual, 5th Ed). 



1234. heterophylla, Pursh. 



Greene, (Shepard). 



1235. verna, L. 



• Jackson, (Bush), Pike, (Pech). 



EUPHORBIACE^. 



Spurge Family. 



