MONOCOTYT.KDONKS. 229 



63. DuroNTiA FisnKRT. 



Desc. Gramen G-10-uiicialc, crectuiu. Cidmi siiuplices, 

 foliati, Ltvcs, glaberriini. Folia radicalia ei infcrioraculmi 

 canaliculata, angusto-liiuarla, acutii, ItCvia, ;2-:3-iincialia, 

 varjinis strictis, scariosis, vix ad medium fissis ; culntra 1-2 

 siipcriora hrcviora, plana, laevia, vaginis pmpriis laxiiisculis 

 foliaccis ultra medimu fissis loiigiora : lif/ula mediocris, 

 ohtusa, subtruncata, imberbis. Fanictda coarctata, spici- 

 formis, basi quandoque iiiternipta, piirpureo-fusca, niteiis, 

 sesquiuiK'ialis — binncialis, ramis subgcminatis, paucifloris, 

 pedicellisque lacvibiis cum locusta continuis. Locustm 

 ovata3, biHorae, cum rudiineiito clavato setiiliformi tertii 

 flosculi, nunc trifloi'cio flore tcrtio conipleto, nunc biflorce 

 absque tertii rudimento. Ghima bivalvis, subaequalisj nui- 

 tica, glaberrima, purpurascens, subnitcns, margine pallido 

 scarioso, loimitudiue lociistae. Valoulce concavae nee cari- 

 natse, oblongo-lanceolata3, inferior paulo augustior, acuminata 

 V. acutissima, uninervis ; superior semi-trinervis,medio paulo 

 infra apicem lateralibus longe intra marginem evanescenti- 

 biis. Perianthia subconforniia ; inferius intra glnmam 

 subsessile, a pedicello brevissimo separabilc ; s/fperius cum 

 apice paulo dilatato pedicelli brevis articulatum, facile 

 soiubile; utrinsque valmda inferior oxnia, mutica obtusa, 

 vix unquani acuta, integra, concava, ipsa basi pilis brcvibus 

 sti'ictis albis barbata, et a basi fere ad medium pilis bre- 

 vioribus strictis subadpressis subsericea, trinervis, nervis 

 lateralibus intra marginem evanescentibus, medio paulo 

 infra apicem desinente : superior longitudine inferioris, 

 manifeste angustior, lineari-oblonga, glaberrima, dinervis, 

 nervis brcvibus, intersticio lineari concaviusculo. LodiciiJce 

 duse, distincta3, collatcrales, mcmbranacete, hyalinge, subovatae, 

 V. cuneatae, apice eroso-dentato, ovario longiores. Stamina 

 3, tilamentis distinctis, capillaribus, antlieris fusco-purpureis, 

 linearibus utrinque bifidis. Ovariinn ovale, glabrum. 

 8ti(jmata 2, subsessilia, hyalina, dense plumosa, ramis apicem 

 versus brevioribus. 



Ohs. The specific name is that of i\Ir. Fisher, whose 

 herbarium contained the most complete series of specimens 

 of tiiis grass. 



