JScirpus.] CLVi. CYPERACE.E (clarke). 451 



8. S. costatuSy Boeck. in Liniuea^ xxxvi. 511. Glabrous. 

 Rhizome 0, or hardly any. Stems tufted, 8-20 in. long, terete, not 

 setaceous. Leaves 0, or represented by a tooth scarcely ^ in. long. Head 

 of 4-16 spikelets ; bracts very short, but the head is frequently sub- 

 proliferous. Spikelets \ in. long, ovoid or oblong-ellipsoid, of 5-15 

 flowers, chestnut- or dark-coloured. Glumes ovate, obtuse. Hypogynous 

 bristles 0. Style linear, branches 3. Nut as of *S'. setaceus. — C. B. Clarke 

 in Dur§,nd & Schinz, Conspect. F\. Afr. v. 620, in Trans. Linn. Soc. ser. 2, 

 Bot. iv. 54, and in Dyer, Fl. Cap. vii. 218 ; Engl. Hochgebirgsfl. 

 Trop. Afr. 147; K. Schum. in Engl. Pfl. Ost-Afr. C. 126. Isolepis 

 costata, A. Rich. Tent. Fl. Abyss, ii. 499. /. setacea, var. abyssirdca^ 

 Boeck. in Flora, 1858, 419. 



xrile land. Abyssinia : Samen ; on Mount Bachit above Demerki, 11,800 ft., 

 Schimper, 103! Begemeder; in a swamp at Guna, 11.400 ft., Schimper, 1464! 

 Slioa ; Ankober, Roth ! and without precise locality, Schimper, 1058 ! 1153 ! 

 British East Africa : Mount Kenia, Gregory, 85 ! 



nSozamb. Dist. German East Afj-ica : Kilimanjaro; Marangu, 8800 ft., 

 Volkens, 1128! British Central Africa : Nyasaland; Mount Mlanji, Whyte ! 



Also in South Africa, Madagascar, and Tasmania. 



9. S. dioecus, Boeck. in Linncea, xxxvi. 719. Glabrous, dicecious. 

 Rhizome horizontal, woody. Stem 20-30 in. long, terete, hard. 

 Leaves 0. Head 1, apparently lateral, f in. in diam., globose, often 

 with 40-50 spikelets ; lowest bract, as though continuing the stem, 1 in. 

 long, rigid, pointed. Spikelets J-J in. long, cylindric, pallid, many- 

 flowered. Glumes ovate or elliptic, closely packed, margins scarious. 

 Hypogynous bristles 0. Style linear; branches 3. Nut small, less than 

 ^ the length of the glume, obovoid, trigonous, smooth, brown, not ribbed 

 longitudinally. — C. B. Clarke in Durand *fc Schinz, Conspect. Fi. Afr. v. 

 621, in Bull. Herb. Boiss. iv. Append, iii. 82, incl. var. jnacrocephala, 

 and in Dyer, Fl. Cap. vii. 22Q. S. Sckinzii, Boeck. ex Schinz in 

 Verh. Bot. Ver. Brandenb. xxix. 47, xxx. 139 in note. Isolepis dioeca, 

 Kunth, Enum. ii. 199. 



ImO-wbt Guinea. Heierolaiid, FlecTc, 125a ! Damaraland, Fen ! 

 Frequent in South Africa. 



10. S. cubensis, Poeppig db Kunth ex Kunth, Enum. ii. 172. 

 Glabrous, except the glumes. Stolons often present ; or stem at the 

 base decumbent and rooting. Stem 1-2 ft. long, stout, trigonous at the 

 top, without nodes from the base to the umbel. Leaves often as long 

 as the stem, 4 in. broad, nearly smooth or edges rough. Umbel 

 simple; heads 4-12 (sometimes 3-1) stellate-globose, \ in. in diam., 

 brown, of numerous spikelets on peduncles ^-2^ in. long : bracts 

 often 5-10, lower up to a foot long, similar to the leaves. Spikelets 

 J— J in. long, many-flowered. Glumes ovate, acute, rigid, their 

 points spreading on all sides ; margins cilicite. Hypogynous 

 bristles 0. Style linear, passing gradually into the top of the ovary ; 

 branches 2, linear. Nut nearly | the length of the glume, piano- 



