A natural history of British grasses . cle rigid, upright, short, lanceolate,rough, rigid, and unilateral. Spikelets linear, compressed,mostly consisting of seven florets; the apex of ba.«al floretstretching slightly beyond the large glume of the of two acute unequal-sized glumes, destitute of lateralribs. Florets of two paleae; exterior one of basal floret five- 114 POA RIGIDA. ribbed, the marginal ribs being broad, and having a whiteline down the centre; intermediate ribs indistinct, dorsal ribdentate on the upper portion. Inner palea somewhat shorter,and having two green margina
A natural history of British grasses . cle rigid, upright, short, lanceolate,rough, rigid, and unilateral. Spikelets linear, compressed,mostly consisting of seven florets; the apex of ba.«al floretstretching slightly beyond the large glume of the of two acute unequal-sized glumes, destitute of lateralribs. Florets of two paleae; exterior one of basal floret five- 114 POA RIGIDA. ribbed, the marginal ribs being broad, and having a whiteline down the centre; intermediate ribs indistinct, dorsal ribdentate on the upper portion. Inner palea somewhat shorter,and having two green marginal ribs. Length from three tofive inches. Root annual, fibrous, and woolly. Flowers in the middle of July, and ripens its seed in amonth. Poa rigida is unlike all others except P. loliacea; howeverP. rigida has the apex of upper glume on a level with thebase of the third floret, whilst in P. loliacea it is on a levelwith the base of the fourth floret. The specimen illustrated was gathered on Colwick Park Wall,by Mr. Joseph POA PRATEJ^ 115 POA PRATENSIS. LiNN,T:rs. IIooKEE AND Arnott. Parxell. KoctT. Greaille. Ealfs. Abbot. Sibthorp. Eelhan. Hull. Withering. Hcdson. Scheadek. Willdenoav. Curtis. Knapp. Dickson. Sinclair. Babington. Deakin. PLATE XXXVI. Poa angusfifoUa, Linnj:us, (var. siihcfprulea, of Hooker. ? suhswrulea. Smith. The Smooth-Stalked Meadoic-Grass. Poa—Grass. Pratensis—Of a meadow. The present common species, known from all other Grasses inhaving the lower florets webbed, is an early Grass, yielding alarge crop, and liked by cattle. It is not, however, recommendedto agriculturists, on account of its creeping roots, which arccalculated to impoverish the soil. Native of England, Scotland, Ireland, France, Italy, Spain,Switzerland, Portugal, Prussia, Germany, Lapland, Norway,Sweden, Denmark, Iceland, United States, and Northern Asia, Grows from the sea-level, to three thousand feet altitude. Stem upright, circular, polished; bearing
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Keywords: ., bookcentury1800, bookdecade1850, bookpublisherlondo, bookyear1858
