224 CHLOKIS MELVILLIANA. 



vix semuiicialis, ramis alternis, subbifloris, strictis, Isevibus, 

 vix denticulatis. Locustm oblongse, coloratse. Glumes 

 acutissimse, valvulis longitudine subajqualibus, carinatis, 

 glaberrimis, inferiore manifeste angustiore, paululum bre- 

 viore, ■uninervi ; «?{/?more basi trinervi. PeriantJda ^\xma.s 

 paulo superantia; valvula mferior ipsa basi lana implexa 

 parca instructa, carina a basi ad duas tertias partes longitu- 

 dinis sericea, linea pariter sericea utrique margiiii approxi- 

 ccixxxviii] mata, a basi ad eandem fere altitudinem attingenti, 

 intersticiis pubescentibus subsericeis ; superior dinervis, 

 nervis pectinatim denticulatis, lateribus induplicatis latius- 

 culis. Lodiculm 2. Stamina 3, antheris stramineis. 

 Ovarium imberbe. Sfic/mata 2, subsessilia, plumosa, 

 hyalina. 



59. PoA ARCTicA, panicula effusa: ramis paucifloris 

 capillaribus Isevibus locustisque coloratis ovatis 3-4-floris, 

 glumis subsequaiibus, periaiithii valvula inferiore basi lanata 

 carina lineaque submarginali sericeis : intersticiis pubescen- 

 tibus, foliis linearibus : ligula subquadrata erosa. 



Poa laxa, Br. in Boss' voy. ed. 2, v. 2,jy. 192. {Ante, p. 

 177.) Hooker in Scoresby s greenl. p. 410, non Willdenovii. 



Desc. Gramen 6-8-pollicare. Culmi erecti v. adscen- 

 dentes, basi quandoque divisi, graciles, Iseves, foliati. Folia 

 radicalia angusto-linearia, canaliculata, culmo aliquoties 

 breviora ; cuhnea paulo latiora, plana, marginibus Isevibus, 

 denticulis obsoletissiniis : vagina strictaj, striatse, Iseves, 

 ipsa basi Integra; ligula subquadrata, nunc paulo longior 

 quam lata, apice eroso-inciso. Panicula ssepius effusa, nunc 

 rara, nunc minus effusa, rarissime subcoarctata, raclii 

 ramisque fuscis, ramis 3-4, semiverticillatis, 1-2-fioris, 

 capillaribus, laevibus. Locustce ovatse v. oblongo-ovatse, 

 fusco-purpurese, apicibus valvularum stramineo-fuscis 

 ipsoque margine albo, 3-4-flor3e, cum rudimento rainuto 

 scarioso longius pedicellato quarti v. quinti ; raclii articu- 

 latim solubili, per lentem scabriuscula. Glumce sub^qui- 

 valves, carinatse, acutae, fusco-purpurese, glaberrimse, carina 

 extra medium obsoletissime denticulata; inferiore angustiore, 

 nervis lateralibus obsoletioribus, altero obsoletissimo ; supe- 



