654 CLXXII. CYPEHACE^E. (C. B. Clarke.) [Stirpus. 



one in each spikelet) plane-convex lanceolate-obovoid smooth pale. S. con- 

 fervoides, Poir. Encyc. vi. 755 (now Boeck.); KunthJSnum, ii. 173 partly (the 

 descript. not the diagnosis). Eleocharis ? confervoides, Miq. Fl. Ind. Bat. 

 iii. 303. Kynchospora ruppioides, Benth. (Rhyncospora) in Hook. Ic. PL 

 xiv. 31, t. 1344 ; Trimen Gat. Ceylon PI 103 and in Journ. Bot. xxiii. 140. 

 Websteria limnophila, S. H. Wright in Bull. Torrey Club, xiv. [1887] 135. 



CEYLON; Thwaites (C.P. 3936); Colombo, Beckett. DISTRIB. Sporadic, 

 tropical. 



Floating. Stems 10-20 in. Leaves 2-4 in., clustered, capillary. Spikelet $ in., 

 oblong-lanceolate. Glumes two lowest concave, elliptic-oblong, thin, enclosing the 

 spikelet ; upper glumes smaller, male or sterile, sometimes ; lowest glume empty, 

 the next supporting a perfect nut-bearing flower. Bristles setaceous, retrorse- 

 scabrous, straw-colrd. Nut half as long as its glume, itself style and style-base 

 exactly as in S. fluitans, but much larger. 



3. S. pauciflorus, Light/. Fl. Scot. 1078; leafless, spikelet quasi- 

 terminal few-fld., bristles 6-3, style 3-fid, nut trigonous obovoid smooth 

 pale or somewhat brown ; Seichb. Ic. Fl. Germ. viii. 38, t. 299 ; Boeck. in 

 Linnsea, xxxvi. 479. S. Basothryon, Ehrh. Phytoph.n. 31; Linn.f. Suppl. 

 103. 



WEST TIBET; Thomson. KASHMIR; alt. 8000 ft., C. S. Clarke. DISTRIB. 

 N. temp, and cold regions. 



Soots fibrous, but stolons sometimes added. Stems 2-10 in., leafy only near base, 

 erect, clustered ; uppermost sheath truncate, often marked by a brown transverse 

 line, sometimes apiculate on one side. Spikelet - in., subebracteate, bearing about 



5 nuts. Glumes ovate, obtuse, dusky chestnut. Bristles about as long as nut, 

 retrorse-scabrous, straw-colrd. Nut as long as f the glume ; style-base narrowly 

 pyramidal continuous with nut ; outermost cells of nut small, subhexagonal, withering 

 (i.e. nut smooth, lead-colrd., smooth or minutely reticulate, white-veiled). 



4. S- pumilus, Vahl Enum. ii. 243 ; leaves very short, spikelet quasi- 

 terminal few-fld., bristles 0, style 3-fid, nut trigonous obovoid glistening 

 black. S. alpinus, Schleich. Cat. 1821 ; Eeichb. Ic. FL Germ. viii. 38, t. 

 300; Boeck. in Linnsea, xxxyi. 480; Boiss. Fl. Orient, v. 378. S. caespito- 

 sus, Boeck. in Linnsea, xxxvi. 488 (the Asiat. examples and syns.), Iso- 

 lepis pumila, Roem. 4" Sch. Syst. ii. 106. I. oligantha, C. A. Meyer Cyp. 

 Nov. 3, t. 1. 



KASHMIR; W. Tibet, Skardo and Hanle, alt. 14,000 ft. Thomson; Gurais, 

 Winterbottom ; Gilgit, Giles. DISTRIB. N. temp, and cold regions. 



Stolons slender, becoming wiry black creeping rhizomes. Stems 2-6 in., setaceous, 

 green. Leaves ^-f in., setaceous, green. Spikelet scarcely i in., ovoid. Otherwise 

 as 8. pauciflorus, Light!'., of which this species has been reckoned a var. (see Roem. 



6 Sch. Syst. Mant. ii. 72 in Obs.) ; ripe examples are easily recognized by the shining 

 black nut. The rhizome (most commonly in 8. pauciflorus) is here black, woody, 

 though very thin. 



Sect. 2. ISOLEPIS (Genus), Br. Prodr. 221. Small or middle-sized. 

 Stems leafy only near the base. Spikelets usually in clusters. No trace 

 of hypogynous bristles. Style long, 3-fid. 



5. S. setaceus, Linn. Sp. PI. 73 (partly); small, stem bearing 1-3 

 spikelets in a quasi-lateral head, style 3-fid, nut longitudinally striate and 

 transversely trabeculate between the striations, Eeiclib. Ic. Fl. Germ. viii. 

 39, t. 301. Boeck. in Linnsea, xxxvi. (excl. var. (3 & y). Isolepis setacea, 

 Br. Prodr. 222 ; Nees in Wight Gontrib. 107 ; Strachey Oat. PL. Kumaon, 

 72 (excl. syn. pygmsea). 



