C. rotundus in Schimp. herh. Abyssin. no. 370. Rich. 
l. c. 482. 
Abyssinia. 
d. Elongatus. Glauens; enlmo pedali tenni dehili; foliis 
pluribus erectis elongatis, 2 lin. lat.; spiculis paueis patenti- 
bus elongatis, binnejalibus, subflexuosis. 
C. rotundus v. elongatus Hochst, in Kotsch. it. Nubie. 
(nec C. elongatus Sieh.). 
Nubia, 
214. €. tuberosus Rotth. 
Viridulus v. glaueescens. Culmo tenuiculo 1— 2-pedali 
triquetro e hasi tuberascente subglobosa fibrillas radieales rigi- 
dulas stolonesgne tennes interdum emittente, inferne paucifo- 
liato; foliis eulmo plerumque brevioribus v. rigidis tenacibus 
v. mollioribus, angustis v. latiusculis carinato-planis, margini- 
bus carinaqne superne scabris; involucro 3—4-phylio, phyllo 
infimo umbella composita v. simplici pluriradiata longiore; 
radiis suberectis setaceis, longioribus 2--5 poll. long. 
«saepe hrachiato- (3 —4-) ramosis; ramis plerumgque 
elongatis erecto-patulis capillarihus hracteis setaceis saepe 
elongatis fultis; spiculis 5 — 10 suhremotis patentibus 
lineari-Janceolatis (minor. oblongis) vompressis tardius tumi- 
dis 18—4 lin. long. 1—1'% Iin. lat. 26—9-floris, inferioribus 
bractea acuminata parım elongata munitis; squamis tenni-mem- 
branaceis arcte imbricatis tardius etiam subadpressis, Intius- 
eulis ovato-sublanceolatis acutiusculis matieis (raro apice tri- 
denticulatis) dorso ohsolete 7—9-striato-nervatis sordide albidis, 
iateribus saepius Juteo-ferruginescentibus fuscosanguineo-varie- 
gatis, marginibns pallidis, carina viridula; caryopsi squama 
triplo breviore tumida late obovata Irıgona acuminato-mu- 
cronata reticulato-rugulosa pallide fusca opaca; stylo 
