CENT. 1. 



15 



19. Synoliga R (united few) Diff. l8,Capsu- 

 la unilocul. valvis iion placeiitiferis, receptac, 

 centrale. Important characters perhaps united 

 to others omitted, habit also difterent, a stem 

 with distichal leaves, head with 2 or 3 flowers 

 only: the A^. subnlata of Ruiz, X. jmuciflora 

 W. and perhaps others. 



20. RAi»ioTiiA;R (nomind) Diff 18. Nectaris 

 seu appendices 3 fimbriatis- interjectis inter peta- 

 lis. Stylo simplex, stigma capitatis plumosus. 

 This includes several sp. blended as X. indica 

 by authors, thus the original G. of Lin. also X. 

 operculata and others. The following sp. were 

 all X. indica oy\q,q\ 1. R. vera. Scapo sulcato 

 spiralis, fol. latis, capit. ovatis, squamis subrot. 

 glabris. Asia — 2 R. Africaria. Scapo sulcato 

 basi spiralis, fol. angustis striatis, capit, globos, 

 squamis subrot. fuscis ad medio pilosis. Africa — 

 3 R. ptihescens^ Scapo tereto, vagina foliosa 

 pubescens, fol. latis, basi dilatatis, capit. squam- 

 isque ovatis. obtusis; Antillis. X?/r/s^w6^.<?cDesf. 

 anct — 4 R. fforidana. Scapo contorto compres- 

 so, apice 4gono, fol. tenuis, striatis contortis, 

 capit. globosis, sq. subrot. emarginatis, Florida. 

 X indica Pursh, an Xuris? aff. X retusa Raf. 



21. JupiCA R (nom. amer.) Diff. 18. Stam. 

 filamentis villosis, antheris 4 gonis, stylo trifido, 

 stigma 9 — The type or perhaps only sp. is J. 

 cerulea Raf. Xyris americana Aubl. auct. with 

 blue flowers, all others are yellow. 



22. Tradescantia L. vere ch. Cal. 3part 

 eq. pers. Cor. 3 petala plana, tenuiss. evanescens 

 equalis. Stam 6 subeq. filam. hirsutis. stylus 

 filif. stig. simplex caps. 3 loc. oligosp. fl. umJr 2 

 spathis. To this G. belong virginica, ros^a, 

 siibasptra, Mrsuta, discolor, malabarica / «•#- 



