130 C. B. CLARke: 
186. Rynehospora rariflora Britton, glabra, culmis 1-—4 dm. 
longis, filiformibus; foliis 1—3 dm. longis, 1—2 mm. latis, setaceo- 
linearibus; corymbis 4—1, laxis; pedicellis pro magna parte usque ad 
4—10 mm. longis; spieulis is R. cymosae simillimis. 
Rynchospora rariflora Britton in Trans. New York Acad. XI 
(1892) p. 92. 
Rhynchospora rariflora Elliott Bot. S. Carol. I (1816) p. 58 syn. 
exel.; Boeck.! in Linnaea XXAVII (1873) p. 599. 
Ithynehospora setacea Kunth Enum. II (1837) pp. 299, 538; 
Griseb.! Pl. Oub. p. 243; Saw. Oub. n. 2665 p. 180. 
Schoenus rarıflorus Mich. Fl. Bor. Amer. I (1803) p. 35. 
Hab. in Cuba: C. Wright n. 3400. 
Distrib. a Carolina usque ad Florida et Texas. 
187. Rynehospora mierocarpa Britton, glabra, culmis 1— 10 dm. 
longis, gracilioribus; foliis 1—3 dm. longis, 2—3 mm. latis vel fere 
setaceis; panicula 2—3 dm. longa, corymbis distantibus 1—6 cm. in 
‚diam., 10—40-stachyis; spiculis subfasciculatis, 2 nım. longis, ovoideis, 
1—2-nucigeris, ferrugineo-bruneis; setis 6, modo nucem superantibus, 
modo brevibus, interdum fere obsoletis; stylo lineari, ramis 2 linearibus; 
nuce vix 1 mm. longa, orbiculata, compressa, grossius transversim un- 
dulato-rugosa; rostro cum 1/,—!/, parte nucis aequilongo. 
Rynehospora microcarpa Britton! in Trans. New York Acad. XI 
(1892) p. 92. 
Ethynechospora microcarpa A. Gray in Ann. Lyceum New York 
III (1836) p. 202 t. 6 fig. 9; Kunth Enum. II p. 539; Boeck. in 
Linnaea XXXVII (1873) p. 583. 
Ithynehospora Torreyana var. mierorhyncha Griseb.! Pl. Cub. (1866) 
p. 243. 
Rhynehospora involuta ©. Wright! Mse. 
Hab. in ins. Baham.: Dale, Eggers n. 4308 (New Providence in 
paludosis); Cuba: C. Wright n. 3785. 
Distrib. a Carolina usque ad Florida et Texas; in Brasilia australi. 
188. Rynchospora stenophylla Britton, glabra, gracilis, culmis 
3 dm. longis; foliis 10—15 cm. longis, vix 1 mm. latis, setaceis; corym- 
bis inter se 1—2 dm. distantibus, laxis, 4—12-stachyis; spieulis soli- 
tariis, anguste ellipsoideo-lanceolatis; setis saepe 6, nempe 3 cum nuce 
subaequilongis 3 brevioribus, antice scabris, bruneis, vel interdum om- 
nibus aequilongis vel reductis; stylo lineari, ramis 2 linearibus; nuce 
obovoidea-ellipsoidea, transversim undulata, luteo-brunea; rostro eum 
'/a—°/ı parte nucis aequilongo, conico. 
