408 



891. MELTCA. 



erect ; the upper simple. Spicules of 1 fertile 

 floret. Outer Pale deusely hairy all over. L. 

 naiTOW, involute-setaceous wheu dry. p. 5, 

 6. High rocks. Nebrodes. 



4. nebrodensis. " Pan. straight, las, se- 

 cund, nearly simple. Outer Pale of lower Fit. 

 ciliate, for its whole length. Back hairless, 

 tuberculato-scabrous. Inner Pale with rather 

 long cilia on keels. Cubns short, tufted. L. 

 involute, hairless. Sheaths haiiiess. p. 5, 

 6. High calc. Nebr." — Pael. 



B. Outer Pale not bearded. 



5. nutans. Pan. compressed, one-sided, 

 nearly simple. Spicules nodding, beardless, 

 with two complete florets. Glumes obtuse. 

 p. 6. Shady hills. Not in s. It. 



6. xninuta. Rac. nearly simple. Spicules 

 nodding, beardless, with 2 complete florets. 

 Glumes acute, falling short of florets. Culm 

 branched. L. very naiTow, convolute. Ligule 

 long. p. 4, 5. Walls and calc. rocks, s. Pr. 

 Liguria. Rome. Sic. 



7. ramosa. Pan. compound at base, py- 

 ramidal. Spicules with 2 complete florets. 

 Glumes acute, rough, subcUiolate ; the inner 

 exceeding florets. L. very narrow, convolute 

 when dry. p. 5, 6. Walls. Rome. 



8. pyramidalis. Pan. many-flowered, 

 scattered, pyramidal. Branches horizontal. 

 Spicules with 2 complete florets. Glumes 

 acute, falling rather short of florets. Culm 

 nearly simple. Ligule short, truncate, lacer- 

 ate, p. 5. Bry stony hills. Massa. Tusc. 

 Rome. Sic. 



9. uni£ora. Pan. branched, 1-sided. Only 

 1 complete floret, p. 5, 6. Shade. 



892. MOLINIA. 



1. cserulea. Pan. rather contracted. Spi- 

 cules erect, awnless, about 3 -flowered. Pale 

 3-nerved, acute, hairless. Culm nearly naked. 

 p. 8. Peaty. 



2. serotina. Pan. spreading. Pits. 2-5, 

 somewhat awned. Pale 5 -nerved. Cukn co- 

 vered with the sheaths, p. 8, 9. Limestone 

 hills, mdt. Pr. s. Sw. It. Sic. 



893. CATABROSA. 



I, aquatica. Pan. equal, diffuse. Spicules 

 linear, generally 2-flowered. p, 5, 6. Water. 



fi. Some of the Spicules 1-flowered. Sands 



within reach of tide. Lancashire. Cum- 

 ray. 



894. SESLERIA. 



1. caerulea. Bracts undivided. Spike 

 ovali -oblong, slightly one-sided. Spicules 2- 

 3 -flowered. Outer Pale with 2-4 setas, and 

 an intermediate awn, not half as long as pale. 

 L. linear, flat. Ligule short, truncate, p. 

 4, 5. Calc. pastures. 



2. tenuifolia. Bracts undivided. Spike 

 oblong. Spicules about 3 -flowered. Outer 

 Pale with 2-4 setas and an intermediate awn, 

 not half so long as pale. L. narrow linear, 

 channeled : the Sheaths at last dividing into a 

 net- work of flbres. p. 5. Shores. Trieste. 

 Fiume. It. 



3. elongata. Bracts undivided. Spike 

 long, cylindrical. Spicules about 3 -flowered. 

 Outer Pale with 2-4 setas, and an intermedi- 

 ate awn, not half as long as pale. L. linear, 

 channeled. Sheaths not dividing, cloven at 

 top. p. 8, 9. Dry meadows, s. e. G. It. 



4. nitida. " Bracts undivided. Spike ob- 

 long. Spicules about 4-flowered. Glumes 

 acuminato-aristate, exceeding florets. Lateral 

 Teeth of outer Pale mucronato-aristate ; mid- 

 dle awned. L. flat, rigid, acute, with a rough 

 margin, p. 5-7. Stony. K. Nap. Sic." — 

 Pael. 



5. tenella. Spike ovoid. Bracts palmato- 

 dentate. Spicules 2-flowered. Awns of outer 

 Pale 5 ; central one as long as pale. Squa- 

 mules 0. p. 6-8. Alps of Salzbm-g. Val- 

 tellina. 



6. sphserocepliala. Spike subglobose. 

 Bracts ovate, dentate. Spicules about 3-flowered. 

 Outer Pale with 1 nerve and a single awn. p. 

 7, 8. Rocks. Alps of Salzb. Lake of Como. 

 Tyrol. Mont Cenis. 



895. OREOCHLOA. 



1. disticha. Spike ovoid. Spicules 3-6- 

 flowered. Lower Pale awnless, but with a 

 small point. L. filiform, p. 7, 8. Very 

 high. Pyr. Alps. 



896. POA. 



A. Panicle one-sided. Culm 2-edged. Sp. 

 1,2. 



B. Pan. nearly equal. Culm terete. 

 i. Root creeping. 



