CYPERACEiE. 



393 



constant; and serrulata of Gussone, which 

 j)rohably belongs naturally to this section, is 

 described as having unifoi'mly only one barren 

 spike. The opening of the arillus has some- 

 times a very short memhi'anous beak. The 

 arillus itself is generally somewhat tubercled 

 in the upper part ; but this, I am afraid, is 

 not to be depended upon.] 



127. glauca. All the fertile Spikes cylin- 

 drical, stalked, dense, usually di'ooping when in 

 fruit. Sheaths short. Fr. obovate, nerveless, 

 triquetro-gibbous. p. 5. Moist pastures 

 and woods. 



j3. micheliana or amhleocarpa. Glumes all 

 quite obtuse. 



7. acuminata. All Glumes acuminate. 



I have a plant from Saorgio, near Nice, 

 given to me by Mr. Stire, with very slender 

 spikes, and narrow, lanceolate, acuminato- 

 aristate glumes. It is, perhaps, C. acuminata, 

 WiLLD., but appears distinct. As I have no 

 fruit, I do not venture to describe it as a 

 species. 



128. ^enueusis. " Barren Spikes about 

 3 ; fertile 2, the lower on an exsert stalk ; the 

 upper sessile. Fr. ovate, truncate, p. Genoa." 

 — Ktjnth. 



129. claviformis. Fertile Spikes 2-3, 

 remote, clavate, on long stalks, drooping. 

 Sheaths short. Fr. elliptic, nerveless, trique- 

 tro-gibbous. Beak almost 0. p. 8. Very 

 high. Carinthia. " Differs from C. glauca in 

 the form of the fertile spikes, thei.r longer 

 stalks, and longer fruit^' Koch. 



ii. Beak membranous. 



130. hispida. " Barren Spikes about 5, 

 lineari-lanceolate ; fertile about 4, thick, cy- 

 lindrical, erect, rather remote; low-er on a 

 short stalk. Bracts leafy, somewhat sheathing. 

 Stigmas 2 or 3. Fr. obovato-eUiptic, cihato- 

 serrate on the upper part of the margin, ter- 

 minating in a rather short, bidentate beak. 

 Glume nerved, awned, ciHato-serrate. L. keeled. 

 Root fibrous, p. 5. Marshes, ^c. Sic." — 

 Guss. Perhaps the same as C. longearistata ; 

 but Kunth places it among the species with 

 2 styles. 



131. Soleirolii. "Bai-ren Spikes. 3-4; 

 fertile 3-4, cylindrical, sessile, erect. Fruit 

 roundish ovate, compressed, ciliate in upper 

 part, with a very short, bidentate beak, shorter 

 than the bluntish lineari-lanceolate glumes. 

 p. Cors. near Bonifacio. Resembles C. longe- 

 aristata ; but the glumes are not awned" — 



DUBY. 



132. lasiochlsena. "Two barren, th]-ee 

 fei-tile Spikes. Glumes linear, green, often with 

 a brown border, very rough. Fr. oval, with 

 scattered hairs. Beak short, white, bidentate. 

 Culm 3-edged, smooth. Sard." — Kunth. 



iii. Fruit with a firm cloven beak. 

 a. Truit hairy all over. 



133. filiformis. Barren Spikes 1-2 ; fer- 

 tile 2-3, remote, erect, dense, sessile ; lower- 

 most sometimes on a short stalk, and with a 

 short sheath. Fr. elliptic. Beak short. Culm 

 smooth at base, obtuse-angled, naked except 

 quite at base. L. channeled, hardly wider than 

 culm. p. 6. Stagnant water on peat. Occ. 



134. evoluta. Barren Spikes 2-3 ; fertile 

 3, remote, cyHndrioal, erect, dense ; lowennost 

 sometimes stalked. Sheaths 0. Fr. ovate, 

 turgid. Beak short. Edges of Culm rough, 

 acute. L. flat, broader than cuLn. p. 5. Shore 

 of Danube near TJlm. 



135. hirta. Barren Spikes 1-2; fertile 

 2-8, erect, oblong. Lower Bracts with long 

 sheaths. Fr. elliptic, acuminate into beak. 

 Culm smooth. L. and Sheaths hairy, p. 6. 

 3foist sandy. 



b. £eak plano-convex. Fruit smooth, except 

 on margin. 



136. hordeistichos. Barren Spikes 2 ; 

 fertile 3, erect, oblong. Lower Bracts sheath- 

 ing. Fr. elliptic, 3-edged, tapering into a long 

 beak. Stem short, smooth, p. 4. Muddy. 

 lower Aust. Mor. 



137. ampuUacea. Barren Spikes 1-3 ; 

 fertile 2—3, remote, on short stalks, dense, cy- 

 lindrical. Sheaths 0. Fr. inflated, elliptic or 

 somewhat obovate, broad, terminating in an 

 abrupt, linear beak. L. channeled. Culm ob- 

 tusely 3-edged, smooth, p. 6. Water. 



138. vesicaria. Barren Spikes 1-3 ; 

 fertile 2-3, remote, nearly sessile, erect, dense, 

 cylindrical. Sheaths 0. Fr. inflated, ovate, 

 nerved, tapering into the beak. Culm with 3, 

 acute, rough edges, p. 6. Water. 



139. riparia. Barren Spikes 3-5. Glumes 

 mucronate ; fertile 3-4, erect, dense, cylindri- 

 cal. Sheaths 0. Fr. ovato-eUiptic, many- 

 nerved, smooth. Beak rather short. Culm 

 with acute, rough edges, p. 6. Water. 



140. paludosa. Barren Spikes 2-3, the 

 lower glumes obtuse. Fertile 2-3, erect, dense, 

 cylindrical. Sheaths 0. Fr. elliptic, nerved. 

 Beak short. CuLn with sharp, rough edges. 

 p. 5, 6. Water. 



3 E 



