386 MINNESOTA BOTANICAL STUDIES. 
Allionia linearis Pursu, Fl. Am. Sept. 728. 1814. 
Coll. : Wheeler 392, Jefferson: July. 
Not previously collected in Minnesota. Collections Oest- 
lund 155 and Herrick 256, Minneapolis, in the Herbarium 
of the University and reported in Metasperme of Minne- 
sota Valley as A. dénearzs Pursh ? should be A. hersuta 
Pursh. 
AIZOACE. 
Mollugo verticillata L. Sp. Pl. 89. 1753. 
Coll: Lyon 279; 302, Jefferson. ; July, Aug. 
CARYOPHYLLACEZ. 
Silene stellata (L.) Arr. f. Hort. Kew. 3: 84. 1811. 
Coll.: Lyon 254, Wheeler 508, Winnebago. July, Aug. 
Silene alba Mun-. Cat. 45. 1813. 
Coll.: Lyon 164, Winnebago. June. 
The only previous collections from Minnesota are from 
Goodhue and Winona counties. Frequent along Winne- 
bago and Crooked creeks. 
Silene antirrhina L. Sp. Pl. 419. 1753. 
Coll.: Wheeler 171, Winnebago. June. 
Cerastium longipedunculatum Mun. Cat. 46. 1813. 
Coll.: Lyon 8, Winnebago. June. 
NYMPHAACEZ. 
Nympheza advena Souanp. in Ait. Hort. Kew. 2: 226. 1789. 
Coll.: Wheeler 307, Crooked Creek; 454, Jefferson. 
Jaly,. Aug., (Plate XXVII.; B.) 
Castalia tuberosa (PAINE) GREENE, Bull. Torr. Club, 15: 
84. 1888. 
Coll.: Wheeler 293, 439, 496, Jefferson. July, Aug. 
Nelumbo lutea (WILLD.) Pers. Syn. 1: 92. 1805. 
Coll.: Wheeler 409, 494, Jefferson. July, Aug. 
Abundant in the sloughs of the Mississippi river at Jefferson. 
(Plate XXV., A.) 
CERATOPHYLLACEZ. 
Ceratophyllum demersum L. Sp. Pl. 992. 1753. 
Coll.: Lyon 367, 480, Jefferson. Aug. 
Common in the sloughs of the Mississippi river at Jefferson 
and Crooked Creek. 
