Tab. iSg. GYMNOPOGON l^vis. 



Culmis ramosis, erectiusculis; foliis lanceolatis vel ovato-lanceolatis , nervoso- 

 striatis, glabris, margine scabris^ glumis acutato-subulatis j arista floris fertilis 

 paleam dorso pilosiusculam longitudine triplo floremque sterilem adjecta arista 

 duplo superante. 



Gymnopogon laevis Nees ab Esenb. Agrostogr. BrasiLp. 4^8. 



Crescit ad Monte Video. % 



Radices filiformes, flexuosae, glabrae, albidoc. Ciilmi caespltosi^ basi repentes, erecllusculi 

 ramosi, multlnodes, inferne ad nodos genlculali, teretes, loeves, glabri, rigidi, duri, nitldi 

 foliosi^ fertiles adjectis spicis i5-i6-pollicares; steriles dimidio brevioresj nodis imberbibus 

 Folia subdistlcha, patentla , lanceolata vel ovato-lanceolnta, acuta, basi rotundata, plana, ner 



voso- strlata , membranacea, glabra, marglne scabra, glauco-vlndia, 12-14 lineas longa, 9-2 i 

 lineas lata. Vaginae teretes, usque ad baslm fissa?, striatx, mcmbranaccGR, rigidx', glabr-^B, ci- 

 liatae, internodils breviores, tardius solutae, 8-12 Ilneas longDC. Ligula : margo angustissimus , 



pllislongls mollibus ciliatus. Spica» duodeclm vel (juatuordecim , raceniosim dispositoe, angus- 

 tae, inferiores gemiuGe, 3-3 i-polllcares, superiores breviores, blpollicares, laxx, flaccida} , pa- 

 tulae, inferne steriles. Rhachis communis ^adrangularis, fillformis, rcdluscula, scabriuscula , 

 4-4i-poIlicaris; partlales capIUaceae, angulatac, scabrae, rectluscula; , purpurascentcs, basi ad 

 axillam barbatulae . Spiculae subsessiles, alternae, distlchae, blseriatae, biflora?, absque arista duas 

 lineas longae^ inferiores cujusllbet spicae tabescentes , macrae, remotae, rhachl adpressae. Flos 

 inferior breviter stipltalus, hermaphrodltus, bipaleaceus; superior longe stipitatus, tabescens, 

 sterilis. Gliunae duae, lanceolatae, apice acutato -subulatae , unlncrviae, carlnata}, membranaceae , 

 glabrae, carina scabrae, fascescenti-purpurasceutes; inferlor (inlerlor) J brevior, florem fertilem 

 vix superans. Flos hermaphrodilus : Palea inferior oblonga, obtusa, sub apice aristata, trinervia, 

 nervis lateralibus obsoletls, trlgono-carinata , dorso pilosiuscula , carina scabra, basi barbatula, 

 superne ad marginem pllis longis cillata , virescenti-purpurascens 5 arista recta , scabra , palea 

 longitudine trlplo longior, purpurascenti-fuscescens. Palea superior vix brevior, lanceolato- 



oblonga , emarginato-truncata , dorso blnervia , marginibus infleids bicarinata, hyaUno-mem- 

 branacea, glabra, superne ad carlnas scabriuscula. Squamulx duae, laterales, oblique obovato- 

 cuneatae, apice inaequaliter bllobae, carnoso-mcmbranaceae , glabrae, hyalina^, ovarlo breviores. 

 Stamina tria, hypogyna. Filamenta capillacea, glabra. Anlhenn lineares, utrinquc bifidae, lo- 

 bis obtusis, biloculares, glabraj, nigro-vlolaceac. Ovarlum oblongum, inferne attenuatum, 

 elabrum. Styli duo, distantes. Stlgmata penicllllformla, fuscescentia; pilis simpllcibus. Caryop- 

 sis linearis, obtusa, semiteres, dorso plana ibique supra basim tuberculo punctiformi notata, 

 fusca laevis, glabra, opaca, palels obtecU, libera. Pericarpium membranaceum , integimiento 

 proprlo seminis adnatum. Embryo oblongus, sc utcUiformis , albumini farinaceo anlice ad 

 basim adhserens ipsoque sextuplo brevior. Corculum m sulco cotyledonls receptum, dorso 



medio adnatum. Flos sterllis longe stipitatus, fertilem subaequans, linearis, arlstatus, scaberi 



