CATALOGUE. 75 



CERATOPHYLLACEJE. 



Hornwort Family. 



1232. Ceratophyllum demersum, L. fiornwort. 



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



CALLITRICHACE^:. 



Water Stay-wort Family. 



1233. Callitriche Austin!, Engelm. Water Starwort. 



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



1234. heterophylla, Pursh. 



Greene, (Shepard). 



1235. verna, L. 



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



EUPHORBIACE^E. 



Spurge Family. 



1236. Euphorbia commutata, Engelm. 



Franklin, Jefferson & St. Louis, (Letterman). 



1237. corollata, L. 



Common. 



1238. dentata, Michx. 



CommoD. 



1239. dictyosperma, F. & M. 



Clay & Jackson, (Bush). 



1240. discoidalis, Chapm. 



Franklin, Jefferson & St. Louis, (Letterman). 



1241. Geyeri, Engelm, 



Jackson, (Bush). 



1242. heterophil, L. 



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



1243. humistrata, Engelm. 



Common. 



1244. hypericifolia, L. 



Common. 



1245. maculata. 



Common. 



