4r)0 CLvi. CYPERACEiE (clarke). [Scirpus. 



5. S. verrvLCOsnhis^ Steud. in Flora, lS2d, 145. Glabrous, annual. 

 Stems tufted, 2-4 in. long, each carrying 1 nearly terminal spikelet. 

 Leaves 0, or the sheath ending in a green point scarcely ^ in. long. 

 Spikelet fV~y ^^- ^^^S^ ovoid ; lowest glume sometimes bract-like and 

 nearly as long as the spikelet, sometimes containiDg a nut and deciduous. 

 Glumes ovate, obtuse, yellowish or purplish with green back. Hypo- 

 gynous bristles 0. Style linear ; branches 2, linear. Nut J as long as 

 the glume, obovoid-truncate, plano-convex, smooth, dark-chestnut- 

 coloured. — C. B. Clarke in Dyer, Fl. Cap. vii. 216. >S'. verruculosus, 

 Nees in Linnsea, vii. 496 in citation; Durand & Schinz, Conspect. Fl. 

 Afr. V. 634. Isolepis ptycholeptos, Steud. Syn. PL Glum. ii. 93. 



Upper Guinea. Senegambia, Leprieur ! 

 Frequent in South Africa. 



6. S. cemuus, FaAZj^nitm. ii. 245. Glabrous, annual. Stems tufted, 

 1-5 in. long, setaceous, with 1 head of 3-1 spikelets. Leaves usually 

 much shorter than the stem, setaceous. Spikelets ^-\ in. long, ovoid, 

 few- or many-flowered. Glumes ovate, hardly acute. Hypogynous 

 bristles 0. Style linear; branches 3, linear. Nut J as long as the 

 glume, obovoid, trigonous, brown or black, smooth or appearing dotted, 

 neither longitudinally ribbed nor transversely barred. — C. B. Clarke in 

 Durand & Schinz, Conspect. Fl. Afr. v. 619, and in Dyer, Fl. Cap. vii. 

 219. S. Savii, Sebast. & Mauri, Prod. Fl. Rom. 22 ; Sowerby, Engl. Bot. 

 Suppl. t. 2782 ; Coss. & Durieu, Expl. Sc. Alger. Glum. 234. S. setaceus, 

 Linn. Mant. 321 ; Boeck. in Linnaea, xxxvi. 501 partly ; Schweinf. in 

 Bull. Herb. Boiss. ii. Append, ii. 49 ? not of Linn. Sp. PI. Isolepis 

 riparia, E.. Br. Prod. 222. /. numidiana, Roem. & Schultes, Syst. 

 Yeg. ii. 110. /. saviana, Schultes in Roem. & Schultes, Syst. Veg. ii. 

 Mant. 63; Kunth, Enum. ii.l93. 



Upper Guinea. Cape Verd Isles ; Wichura, 425 ! 



Common in most warm and temperate regions. 



This species is plentiful in Algeria and in extratropical South Africa ; it is also 

 communicated from St. Helena and the Mascarene Isles, but has not been 

 received from Tropical Africa. As to the doubtful citation of Schweinfurth, tl.e 

 only example of his S. setaceus seen looks like S. cernuus, hut it has no ripe nuts. 



7. S, set2iceviSf Lin7i. Sp. Fl.ed. 2. I'd partly. Nut longitudinally 

 ribbed, and with transverse bars between the ribs, the outermost trans- 

 verse cells being arranged in exactly vertical series; otherwise as 

 S. cernuus. — Sowerby, Engl. Bot. t. 1693; Boeck. in Linnrea, xxxvi. 

 500 partly; C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 654, in 

 Durand k Schinz, Conspect. Fl. Afr. v. 630, in Bull. Herb. Boiss. iv. 

 Append, iii. 33, and in Dyer, Fl. Cap. vii. 217 ; K. Schum. in Engl. Pfl. 

 Ost-Afr. C. 125 ; Volk. Kilimand. 319. Isolepis setacea, R. Br. Prod. 

 222 ; Kunth, Enum. ii. 193. 



Wile I.and. Abyssinia ; 10,000 ft., Schimper, 325! 384 ! British East Africa : 

 Fvuu'enzori ; in the bed <.f Butagu River, 7000-8000 ft., Scott-Elliot^ 7916 ! 



Mozamb. Blst. Gcrmnn East Africa : Kilimanjaro; Johann Ravine, 11,100 

 ft., Volkens, 1214 ! Kifinika Volcano, 9000 ft., Volkens, 1214 ! 



Frequent from Europe and Africa to Australia. 



