86 TRANSACTIONS OF THE [ FEB. 22, 
15. Rynchospora corymbiformis (Benth.). 
Scirpus corymbiferus, Sauv., Fl. Cub., 176 (1873), not R. corymbifera, Ness. 
Psilocarya corymbifera, Benth., in Benth. and Hook. Gen. Plant., iii, 1048 (1883). 
Psilocarya corymbiformis, Benth. in Hook. Ic. Plant., xv, 25, t. 1431 (1883). 
Rynchospora ignorata, Boeckl., Engler’s Bot. Jahrb., v, 508 (1884). 
Columbus, Ga. (Boykin); East Florida (Leavenworth); Louisi- 
ana (Hale). [Cuba, Wright, 3774. ] 
16. Rynchospora robusta (Kunth). 
Dichromena robusta, Kanth, Enum., ii, 283 (1837). 
Psilocarya robusta, Nees in Mart. Fl. Bras., ii, Pars 1, 116 (1842). 
Rynchospora robusta, Boeckl., Linnea, xxxvii, 616 (1873). 
Orizava, Mex. (Bourgeau, 2735; Muller, 1366; Botteri); Coban, 
Guatemala (Tuerckheim, 1261), distributed as Rynchospora Mexi- 
cand. : 
17. Rynchospora eximniia (Nees). 
Spermodon eximius, Nees, in Seemann. Bot. Herald, 222 (1852-57). 
Dichromena Schiediana, Kunth, Enum., ii, 282 (1837), not Rynchospora Schie- 
diana, Kunth, loc. cit., 350. 
Rynchospora oxycephala, Sauy., Fl. Cub., 184 (1873). 
Rynchospora eximia, Boeck)., Linnea, xxxvii, 601 (1873). 
Mexico (Liebmann); Orizava (Muller, 1964); Jalisco (Pringle, 
2299). [Cuba, Wright, 3792. | 
18. Rynchospora rufa (Nees). 
Psilocarya rufa, Nees in Mart. Fl. Bras., ii, Pars 1, 117 (1842). 
Psilocarya Mexicana, Liebm., Mex. Halv., 60 (1849). 
Rynchospora rufa, Boeckl., Kjob. Vid. Medd., 1869-70, 149. 
Rynchospora Mexicana, Sauv., Fl. Cub., 182 (1873), not Steud. 
Mexico (Liebmann). [Cuba, Wright, 2683. Also in northern 
South America.] The original was from South America. Mr. 
Clarke places Liebmann’s specimen as a form or variety of it. 
+ + Spikelets with only 1 or 2 nutlets. 
19. Rynchospora micrantha, Vahl. 
Rynchospora micrantha, Vahl, Enum., ii, 231 (1806), in part. 
Psilocarya Teneriffe, Torr. Ann. Lye., iii, 362 (1836). 
Mexico (Liebmann); Guadalahaja (Pringle, 2056); Guatemala 
(Bernoulli, 413). [West Indies. | 
20. Rynchospora tenuis, Link. 
Rynchospora tenuis, Link, Jahrb., iii, 76 (1820). 
Mexico (Auerswald, 800; Liebmann; Muller, 124). [South 
America,] A widely distributed tropical American species which 
has received many names. 
