62 0. B. CLARKE: 
70. Eleoeharis mitrata ©. B. Clarke, stolonibus longis; culmis 
4—6 dm. longis, 2—3 mm. latis, subteretibus, non septatis; spicula 
unica 2—3 em. longa, 3—4 mm. lata, cylindrica; glumis 4—5 mm. 
longis, ovatis, obtusis, fusce viridibus rubro-sphacelatis, ima viridiore, 
culmum quasi continuante; setis 7 cum !/, parte glumae aequilongis, 
albis, fere levibus; stylo (saltem saepissime) 2-fido; nuce cum !/, parte 
glumae aequilonga, biconvexa, urceolata, apice vix angustata, fusce stra- 
minea, cancellata inter strias 24—30 longitudinales transversim trabe- 
culata; stylobasi mitraeformi, cum nueis apice vix aequilata. 
Seirpus mitratus Griseb.! Flor. (1864) p. 570. 
Heleocharis Jelkskiana Boeck. in Linnaea XXX VI (1874) 9.376 
e deseript. 
Hab. in Trinidad: Crueger n. 24. 
Distrib. in Brasilia prope Manäos. Var.? # africana ad Niger lecta est. 
71. Eleocharis eellulosa Torrey, stolonibus longis; culmis 4+—7 dm. 
longis, apice subteretibus, non septatis; spicula unica 3 em. longa, 5 mm. 
lata, cylindrica, pallida, e viridi luteo-fuscescente; glumis 4—5 mm. 
longis, obovatis obtusis, fusce viridibus aut brunescentibus, ima virides- 
cente, culmum quasi continuante; setis 7, tenuibus, nuce longioribus, 
rubro-bruneis, levibus aut vix denticulatis; stylo 3-fido; nuce cum 1/; 
parte glumae aequilonga, compresso-trigona, obovoidea apice angustata, 
stramineo-brunea, longitrorsum 30—36-striata, transversim trabeculata. 
Eleocharis cellulosa Torrey in Ann. Lyceum New York III (1836) 
p. 298 et Mexie. Bound. p. 228; Hitch. Pl. Bah. (1893) p. 175. 
Seirpus dielyospermus CO. Wright! in Sauv. Oub. (1871) n. 2623 
». 178. 
Heleocharis spiralis, forma tenuis Boeck.! ms. 
Hab. in ins. Bahama: Dale; Cuba: C. Wright. 
Distrib. Florida, Texas. 
_ 12. Eleocharis variegata Presl var. laxiflora Ridley, stolonibus 
longis; eulmis 2—4 dm. longis, 2—3 mm. latis, apice subtrigonis, non 
septatis; spieula unica 25 mm. longa, 3 mm. lata, eylindrica; glumis 
fusce viridescentibus, unicoloribus, vel anguste bruneo-marginatis; setis 7, 
nucem saepe fere duplo superantibus, valide retrorsim scabris; stylo 
3—2-fido; nuce minute reticulata, late ellipsoidea, compresso-trigona, 
a 30—40 striis tenuibus longitudinaliter percursa, apice paullo angus- 
tata; stylobasi ovoideo-triangulari. 
bleocharis variegata Presl var. laxiflora Ridley! in Journ. Singa- 
pore Asiat. Soc. n. 23 (1891) p. 14; C. B. Clarke in Hook. f. Fl. Brit. 
Ind. V p. 626. 
Seirpus laxiflorus Thwaites! Enum. Pl. Zeyl. (1864) p. 435. 
