North American Cyperacece. 365 
6. R. RARiFLORA, ElUott, sJc. 1. p. 58, (excl. syn.); Gray! 
monogr. I. c. p. 197. 
Schcenus rariflorus, Michx. ! fl. 1. p. 36; Muhl. gram. p. 10. 
7. R. MiLiACEA, Gray! monogr. I. c. p. 198. 
R. sparsa, Vahl, enum. 2. p. 230; PurshI fl. 1. p. 48; Elliott, sk. 
1. p. 62, t. 2 ; Torr.! fl. 1. p. 56. 
SchcEnus miliaceus, LamarcTc, ill. gen. 1. p. 137. 
S. sparsus, Michx.! fl. 1. p. 35; Muhl.! gram. p. 7. 
Nearly all the florets of this species are perfect, and each 
spikelet frequently perfects as many as 8 or 10 nuts; which, 
being persistent long after the scales have fallen, present a 
remarkable appearance. 
8. R. CADUCA, Elliott! sk. 1. p. 52; Gray! mo7iogr. I. c. 
p. 199. 
This species also perfects a greater number of nuts in each 
spikelet than is usual in the genus. 
9. R. MULTiFLORA, Gray, monogr. I. c. p. 200. 
Scirpus schoenoides, Elliott! sk. 1. p. 89. 
10. R. PATULA, Gray! monogr. I. c. p. 201. 
11. R. iNEXPANSA, Vahl, enum. 2. p. 233 ; Elliott! sJc, 
1. p. 61 ; Gray! monogr. I. c. p. 200. 
Schcenus inexpansus, Michx.! fl. 1. p. 35; Muhl. ! gram. 1. p. 9. 
12. R. MiCROCARPA, -B«/Jit'm .'; Gray! monogr. I. c. Tp, 
202. 
13. R. PUNCTATA, Elliott! sic. 1. p. 60 ; Gray! monogr, 
I. c. p. 203. 
14. R. Elliottii, Gray! monogr. I. c. p. 204. 
R. distans, Elliott, sk. 1. p. 49. (not of Vahl.) * 
