21 



Potamogeton mdcronatus Schrad. B 369, Mad river, a rdendei 

 form. Determined by Morong.) 



Potamogeton natans i. B f}6, Vermilion lake. B 391, Mud lake. 

 \ Determined by Moron,/. ) 



Potamogeton obtusifolins M A K. B 155, Vermilion lake i>« 

 termined by Morong. 



Potamogeton pectinatiifl L — B 124, Vermilion lake. (Determined 



Potamogeton perfoliatua L., var. lanceolatue Rob. B it. i; H!>, 



Vermilion lake. (Determined by Morong.) 

 Potamogeton prselongus Wnlf. - B 404, Burnteide lake. Determined 



■ >in/. ) 



Potamogeton pusilhis L. (?) B 394, Mud lake (Determined by 

 Morong. 



Potamogetoii pusilhis l. var tenuissimus If. & K. B 538, Long 

 lake. Determined by Morong. i 



Potamogeton robbing!] Oakee. — B393, Mud lake. B442, Pal] lake. 

 The latter in fruit ! (Determined by Morong.) 



Potamogeton nifescens Schrad. — B H)2, Burnteide lake. B551, Mud 

 lake Determined bj Moron;/.) 



Potamogeton spirillus Tuck. — B M 1. B ">:5!». Long lake. I Determined 

 by Morong. 



Potamogeton zosterifolius Bchum. — B 403 in part, Burnteide lake. 

 B 545, Long lake. (Determined by Moron//. 



Scheuchzeria palustris L. — B305, St Louie river. 



Triglochin in uitiunim L.— B 326, 3t Louie river. 



BRI04 m i "\ \< i: i . 

 Briocaulon septangiilare With. — B •">:>(;. BurntBide lake. 



« YPKKA" I l . 



Cares adnata Boott — B7, Vermilion lake. B 283, St Louie river. B 

 568, Long lake, B464, 1 1 •">•-'<;. B531, Agate bay. 

 ( ares aquatilia Wabl- B i 15, Vermilion lake. 

 Cares arctata Boott — B211, Vermilion lake. B556, Mud lake. 

 Cares arctata flexilis Bailey. — B554, B555, Long lake. Bee Hot. 

 •>> . voL XI. 1896, p. 3*28, fbi a description and illustration olf thia hybrid. 

 Cares arctata nesllis .,i arctata vaginata. B 375, Mud 



lake. 



< ares aurea Nutt- ii 30, Vermilion lake 



< ares bnxbaumll WahL B 171, Lgatebay. 



( ,ire\ caneacens L .. var. polystacbya r.<»<>tt. -B 74, B k»i». Ver- 

 milion lake. 



Cares crlntta Lam. — B 107, Vermilion lake. 

 Cares deweyana Bchw. B :'>7. Vermilion lake. 

 Cares echinata Ifurr., var. microatachya B. B 182, 

 I ares ftliformla I. B200, Vermilion lake 

 Cares flexflls Budge B557, Long lake 



