106 C. B. Clarke: 



** Plantae robustiores, rüdes. 



Paiiicula terminalis, in caput fere congesta 



181. E. cephalotes Valü. 

 Coiymbi 3 — 4 axillares, remoti 



182. 7?. comata C.B. Clarke. 

 Sect. 5. Glaucae. Setae antice scabrae; iiux transversini undiilata. 



* Spiculae 5 — 7 mm. longae; plantae robustiores. 

 Folia 4 mm. lata; corymbi densi 



184. B. sUpitata C.B. Clarke. 

 Folia 5 — 7 mm. lata; corymbi 4 — 8 cm. in diam. 



191. R. Marisculus C.B. Clarke. 

 ** Spiculae 1- — 3 (rarius 4) mm. longae. 



-\ Folia 2 — 4 mm. lata; culmi saepius 3 — 10 dm. longi 

 § Eostrum Y2 P^i'te nucis brevius. 



Spiculae ovoideae acutae , 1 — 2 - nucigerae 

 Setae nuce longiores 183. R. glauca Valü. 

 Setae nuce breviores 



185. R. cymosa Britton. 

 Spiculae subglobosae 



Spiculae 1 — 2 - nucigerae 



187. R. microcarpa Britton. 

 Spiculae 5 — 2 - nucigerae 



189. R. sparsa Valil. 

 §§ Eostrum 1/2 parte nucis longius. 



Corymbi laxe divaricati 190. R. cubensis C. B. Clarke. 

 Corymbi parvi densi 192. i?. jormwosa C. B. Clarke. 

 -j"j- Folia 1 — 2 mm. lata, setacea aut filiformia. 

 Culmi 1 — 3 dm. longi, graciliores 

 Eostrum 1/2 parte nucis brevius 



186. R. rariflora Britton. 

 Eostrum 1/2 parte nucis longius 



188. R. stcnop)hylla Britton. 

 Culmi 5 — 15 cm. longi, setacei 



193. R. cernua C. B. Clarke. 



138. Rynchospora (pterocarpa C. B. Clarkej, stolonibus 0; culinis 

 1 — 4 dm. longis, caespitosis, gracilioribus, trigonis, glabris; foliis plu- 

 ribus cum Y4 — V4 P'^rte culmi aequilongis, 2 — 3 mm. latis, planis, saltem 

 in margine saepissime ciliato-pilosis; capite 1 polystachyo, 8 — 12 mm. 

 in diam., denso; bracteis 3 vel pluribus, ima caput saepius superante; 

 spiculis 5 — 8 mm. longis, lanceolatis, 7-glumis 1-nucigeris, glabris, 

 stramineo-bruneis; glumis obscurius distichis, obtusis, subcorneis, 4 imis 

 parvis vacuis, quinta multo majore bisexuali nucigera, sexta paullulum 

 distante; setis 5 — 3, saepe 4, nucem cum rostro superantibus, antice 

 scabris ima basi ciliatis; style longissimo, rubre, apice breviter 2-den- 

 tato; nuce cum -/s pf^i"te glumae vix aequilonga, sessili, oblongo-ob- 

 ovoidea, a torgo compressa, concavo-convexa, levi, nigra, a stylobasi 

 fere usque ad basin conspicue alata, aus scariosis tenuibus multum 



