84 TRANSACTIONS OF THE [fEB. 22, 



* * Culm normally polycephalous. 

 3. Ryncliospora cyperoides (Sw.)- 



Schoenus cyperoides, Sw. Prodr. Fl. hid. Occ, 19 (1788). 



Rynchospora cyperoides, Mart., Denksch. Akad. Wiss. Muncli., 1816-1817, 149. 



Ephipjpiorhynchum polycephalum, Nees. 



Mexico (Liebmann). [Cuba, Wn'o-ht, 3404; St. Domingo, Eg- 

 gers, 1696. Porto Rico, Blauner, 253; South America.] 



4. Ryncliospora Tracyi. 



Ceratoschcenus capitatus, Chapm., Fl. S. U. S., 529 (1860), not R. capitata, R. & S. 



Florida (Chapman; Garber ; Keeler ; Curtiss, 3143); Ocean 

 Springs, Miss., a monocephalous form (Tracy, No. 60). 



* * * Inflorescence paniculate. 



5. Rynchospora coryml>osa (L.). 



Scirpus corymbosus, L. Sp. Fl., 76 (1753). 

 Rynchospora aurea, Vahl, Ennm., ii, 229 (1806). 



Mexico; Nicaragua; Guatemala (Tuerckheim, 1257). [West 

 Indies, South America, and in tropical regions of the Old World.] 



6. Ryncliospora corniculata (Lam.). 



Schoenus corniculalus, Lara., 111., i, 137 (1791). 

 Scha'nns longirostris, Michx., Fl. Bor. Amer., i, 35 (1803). 

 Rynchospora lonyirostris. Ell., Sketch Bot. S. C. and Ga., i, 35 (1816). 

 Rynchosjjora l.axa. Vahl, Enum., ii, 231 (1806), not of R. Br. 

 Rynchospora corniculata, A. Gray, Ann. Lye. N. Y., iii, 205 (1835). 



Southern Penn.sylvania and Ohio to Florida, west to Missouri 

 and Louisiana and Texas. 



Var. macrostacliya (Torr.). 



Ceratoschcenus macrostachyus, Torr., Ann. Lye. N. Y., iii, 369 (1836). 

 Rynchospora macrostachya, Torr. in A. Gray, loc. cit., 206 (1835). 



Eastern Massachusetts and Rhode Island to Florida, west to 

 Arkansas, the Indian Territory (Palmer, 357), and Texas (Hall, 



721). 



Var. patllla (Chapm.). 

 Ceratoschcenus macrostachyus, va.r. patul us, Chapm., Fl. S. States, 529 (1860). 



Florida. 



W. Boott, in Bot. Gaz., ix, 94, indicates that the characters of 

 the bristles are not sufficient to separate these as species ; this is 

 also Mr. Clarke's opinion. Northern specimens with long bristles 

 have quite the habit of southern ones with short bristles. 



