20 AMERICAN MIDLAND NATURALIST 



Triglochin Linn. 1. c. etc. in part [Hexaglochin Dum. as 

 section under Triglochin. Fl. Belg. Stani. p. 141, (1827). 



Diflfert a Triglochine capsulis sexlocularibus ovoidis, cum 

 axilla intra capsulam sexangulari minime alata, apicibus sex 

 pedicellis decurrentibus in rachim; cum habitu et multis aliis 

 characteribus generis praecedentis.* 



Hexaglochin sexlocularis (Linn.) Nwd. 



Triglochin sexlocularis Linn. Am. Acad. II. p. 245, (1749). 

 Hexaglochin maritima (Linn.) Nwd. 



Triglochin maritima Linn. Sp. PI. p. 339, (1753). Triglochin 

 data Nutt. Gen. I: p. 237, (1818); Triglochin maritima var. 

 elata A. Gray. Man. Ed. 2. p. 437, (1852) in part. 



Millers, Ind. (Lake Co.) U. N. D. Herb. No. 2656, also (Lake 

 Co.) Hill. Chain Lakes (St. Joseph Co.) U. N. D. Herb. No. 547; 

 also Mineral Springs, Ind. (Porter Co.) East of Bankson Lake; 

 Indiana Harbor (Lake Co.) A. Chase, Lake Maxinkuckee, H. W. 

 Clarke. 



SCHEUCHZERIA Linn. Syst. (1735) Gen. PI. p. 106, (1737) 

 P- 157, (1754), Sp. PI. p. 338, (1753)- 



Scheuchzeria palustris Am. Acad. II, p. 245, (1749), Linn. 

 Sp. Pi. p. 338, (1753)- 



(Marshall Co.) Hessler, Lake Maxinkuckee, H. W. Clarke; 

 Millers, Ind., Bastin; Chain Lakes, Ind. (St. Joseph Co.), I have 

 found it in open spaces in tamarack bogs commonly throughout 

 the region, associated with Sarracenia purpurea, Oxycoccus macro- 

 carpus or Drosera rotundi folia, Menyanthos trifoliatus (Buckbean). 

 Other places where I have seen it without collecting it are ; Bankson 



* Though this plant genus, the type of which is Triglochin maritima 

 Linn. vSp. PI. p. 339, (1753), had scarcely any other good characters than 

 that of a capsule with six rather than three carpels, it could not reason- 

 ably be kept in Triglochin. So great is this a difTerence for purposes of 

 classification that we wonder how Linnaeus himself could have retained 

 the plant in his group Hexandria irigynia, where one would hardly look 

 for it with such contradictory characters. The habit of Hcxaglochhi and 

 Triglochin are the same and for scarcely any other reason could a follower 

 of the Linnaean or any other system have kept the plants together. Many 

 botanists oliject to habit as a satisfactory character for generic separation 

 and such conservatives can not object. The capsules, however, are very 

 different in habit, excluding T. .itriata which according to Rafinesque may 

 perhaps constitute a third separate genus with characters quite as notable. 



