380 



825. CYPERUS. 



5. fuscus. Umbellules many, sessile and 

 stalked, in a sort of umbel. Spicuks linear. 

 Glumes ovate, mucronulate. Stigmas 3. Seeds 

 acutely 3-edged. Invol. of about 3 L., ex- 

 ceeding umbel, p. 7, 8. Marshy, m. and 

 s. Em'ope. 



ii. Spicules numerous, in a dense head or 

 spike. 



6. glaber. Heads dense, globose, in a 

 simple umbel. Spicules lineari-lanceolate, very 

 numerous. Glumes emarginate, mucronulate, 

 many-nerved. Invol. veiy long, of many L. 



a. 9, 10. Ronca near Verona. Lucania. Apulia. 

 Sicily. 



7. diffortnis. Heads about 3 ; the mid- 

 dle sessile, globose. Spicules linear, rather 

 turgid. Glumes ovate, obtuse. Invol. of about 

 2 very long L. a. 7-9. Rice-grounds. Mi- 

 lan. Sicily. 



8. glomeratus. Heads globose, ovate 

 and cylindrical. Umbel compound. Spicules 

 linear, acuminate. Glumes oblongo-linear, 

 tootbed at the end. Invol. very long, 3-4- 

 leaved. p. 9. Grassy hills. Extensively on 

 the Po. Trieste. Abruzzi. 



iii. Spicules 3-8, in a spike. 

 a. Root tuberous. 



9. esculentus. Runners bearing on their 

 fibres ovoid, zoned, siveet tubers. Culm naked. 

 Bracts 5. Umbel. not producing secondary 

 umbels. Sjncules pale yellow. Glumes every- 

 where nervose. p. 7, 8. l>!at. in sandy fields. 

 Drepano. Aquileia. 



10. Tenorii. Fibres of the creeping Root 

 bearing small spherical, zoneless, hitter tubers. 

 Umbel simple. Spicules of a, golden yellow, 

 few. Invol. of 3-5 L., exceeding umbel. 

 Glumes everywhere nervose, refuse, p. 7-9. 

 Sandy shores, mdt. It. s. Nap. Sic. 



11. rotundus. Root tuberous. Tubers 

 siveef -smelling, indistinctly zoned. Umbel 

 simple. Invol. rather exceeding umbel. Spi- 

 cules few. Glumes striate only near the keel. 

 Stigma tripartite, very long. Seed oblong, 3- 

 edged. p. 7, 8. Coast of Mdt. 



b. Root creeping, sometimes thick and fleshy, 



hut not hearing distinct tithers. 



12. badius. Spilies 3 or 4, on the longer 

 branches of the imibel; tho lateral Spikes 

 placed nearly at a right angle. Spicules lineari- 

 lanceolate, acute. Root creeping, p. 7, 8. 

 Marshy. Burtschied near Aachen. Eifel. Sic. 



Pari, considers this the same as C. tenuiflorus. 

 Koch doubts. 



13. lougus. Root tortuose, with thick 

 runners. Umbel compound. Spicules linear, 

 acute, flat. Glumes lanceolate, obtuse, closely 

 tiled. Seed acutely 3-edged, thicker upwards. 

 General Invol. very long. p. 7, 8. Marshes. 

 s. and w. Pr. occ. s. Sw. s. Tyr. It. 



;8. badius. Spicules of a chestnut brown. 

 Sic. Cal. rare. 



14. msrriostachys. Umbel bearing com- 

 pound spikes. Spicules obtuse. Seed exactly 



■ 3-edged, quite smooth. Stigma tripartite. In- 

 vol. of 3 L., exceeding umbel. Scape 3-edged, 

 thick. Root creeping, p. 7, 8. Calabria. 

 Nearly resembles C. Monti. 



15. Monti. Umbel bearing compound 

 spikes. Spicules rather turgid, lanceolate, not 

 crowded, obtuse. Seed compressed, obovate, 

 striate. Stigma bifid. Invol. very long. Scape 

 thick, 3-edged. p. 8,9. Ditches and marshes. 

 s. Pi-, s. Sw. s. Tyr. n. and m. It. 



16. neglectus. "Umbel subcompound, 

 of about 4 rays. Invol. of about 3 L. : two of 

 them twice or three times as long as the umbel. 

 Spicules linear, obtuse, chestnut, in clusters of 

 from 3 to 8 on the summit of the simple rays. 

 Scales oblongo-lanceolate, subobtuse, nerved, 

 remote from one another. Stigmas long, ex- 

 sert. Seed obovato-elKptic, acutely 3-edged, 

 brown, nearly smooth. Culm 3-edged, leafy 

 at base. Root creeping, p. 7-10. Banks of 

 streams. Pal." — Parl. 



D. Umbel compound. Primary Rays very long. 

 Spicules in nearly sessile Spikes. 



17. Pap3rrus. Scape obtusely 3-edged. 

 General Umbel fastigiate, exceeding involucre. 

 Partial Umbel of 3 or 4, nearly sessile spikes. 

 Involucels of 3 very long L. Seed 3-edged. 

 p. 7, 8. Fountain Cyane, Sic. 



826. SCHCENUS. 



1. mucronatus. Seeds without bristles 

 at the base. Spicules ovate, in a dense, he- 

 mispherical, terminal head. Invol. veiy long, 

 spreading, many-leaved. Culm round, naked. 

 L. channeled, p. 6, 7. Sandy shores. Mdt. 



2. ni^icans. Bristles at base of Seed 

 very short. Spicules 5-10, in a roundish, ter- 

 minal head. Outer L. of Invol. long, subulate. 

 Culm round, naked. L. subulate, flat. p. 5, 6. 

 Peaty or sand . 



