221' CHLORIS MELVILLIANA.
vix semmicialis, ramis alternis, subbifloris, strictis, laevibus, vix denticulatis. Locustce oblongse, coloratse, Glumce acutissimae, valvulis longitucline subaequalibus, carinatis, glaberrimis, inferiore manifeste angustiore, paiiluluni bre- viore, uninervi ; 67//?er?or<? basi trinervi. FeriantUa^m^^i^ paulo superantia ; valvula inferior ipsa basi lana implexa parca instructa, carina a basi ad diias tertias partes longitu- dinis sericea, linea pariter sericea utrique margini approxi- ccixxxviii] mata, a basi ad eandem fere altitudinem attingenti, intersticiis pubescentibns siibsericeis ; superior dinervis, nervis pectinatim denticulatis, lateribus induplicatis latius- culis. Lodiculce 2. Stamina 3, antheris stramineis. Ovarium imberbe. Stigmata 2, subsessilia, phimosa, hyalina.
59. PoA ARCTicA, paniciila efFusa: ramis paucifloris capillaribus Igevibns locnstisqne coloratis ovatis 3-4-floris, glumis snbsequalibus, perianthii valvula inferiore basi lanata carina lineaque submarginali sericeis : intersticiis pubescen- tibns, foliis linearibus : ligida subquadrata erosa.
Poa laxa, Br. in Boss voy, ed. 2, v. 2, 7;. 192. {Ante, p. 177.) Hooker in Scoresbys greenh p. 410, non Willdenovii.
Desc. Grame7i 5-8-pollicare. Culmi erecti v. adscen- dentes, basi quandoque divisi, graciles, Iseves, foliati. Folia radicalia angusto-linearia, canaliculata, culmo aliquoties breviora ; culmea paulo latiora, plana, marginibus Isevibus, denticulis obsoletissimis : vaginca. stricta3, striatse, laeves, ipsa basi integra; Ugula subquadrata, nunc paulo longior quam lata, apice eroso-inciso. PanicuJa sgepius efFusa, nunc rara, nunc minus efFusa, rarissime subcoarctata, rachi ramisque fuscis, ramis 3-4, semiverticillatis, 1-2-floris, capillaribus, laevibus. LocustcE ovatse v. oblongo-ovatae, fusco-purpureae, apicibus valvularum stramineo-fuscis ipsoque margine albo, 3-4-florae, cum rudimento minuto scarioso longius pedicellato quarti v. quinti ; rachi articu- latim solubili, per lentem scabriuscula. Glumce subaequi- valves, carinatae, acutse, fusco-purpurese, glaberrimae, carina extra medium obsoletissime denticulata; inferiore angustiore, nervis lateralibus obsoletioribus, altero obsoletissimo ; ,s2^je-
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