MONOCOTVLKDONES. 2'2^ 



Obs. In excmplaribus plcrisque nulluvn certe nicliinentuiii 

 flosculi seciiiidi, quod tameii in nonnullis a Melville Island 

 atque in excniplari a Possession l^ay adest, setulifornie, 

 hispiduhun ; et in specimine unico ^ Alelville Island locustas 

 nonnullas bifloras floscido secundo ])edicellato perfecto 

 observavi. 



57. PoA ANGUSTATA, panicula siniplici coarctata lineari- 

 lanceolata, locnstis 4-5-flons, glunia inferiore dimidio niinore, 

 periantliiis apice crosis : valvnla inferiore basi elanata latcri- 

 bus glabriusculis, foliis angusto-linearibus. 



Dksc. Gravien 4-6-nnciale, glabrum, erectum ; radice 

 fibrosa. Cidmi foliati, basi quandoque divisi, lacves. Folia 

 angnsto-linearia, plana, acuta, glabra, laevia ; vagince subcy- 

 lindracese, laeves, suprema folio proprio longior, omnes ipsa 

 basi integra ; Ucjula subquadrata tani lata quam longa, apice 

 dentato dente medio paulo longiore. Fanicida erecta, 

 angustata, circumscriptione lineari-lanceolata, ramis pauci- 

 floris, pedicellis denticulatis, strictis, viridibus, apice paulo 

 dilatato, cum locusta baud omnino continuo. Locunfm 

 oblongse, coloratse, ssepius quadriflorae. GJumce hyalina?, 

 glaberrimse, uninervia:', cum pedicellis persistentes, valvula 

 inferiore fere dimidio minore ; superiore duplo latiore et 

 fere duplo longiore, ol)tnsiore, perianthio dimidio circiter 

 breviore, nervis lateralibus obsoletis. ^(^^r/r/;^////^ separatini 

 decidentia, raclii locustae glabra ; valvula iiif crier oblonga, 

 concava, acutiuscula, apice scarioso eroso-denticulato, quin- 

 quenervis, lateribus infra medium pube rara in nervis extimis 

 crebriore instructis, ipsa basi absque lana implexa ; siqjerior 

 paulo brevior, dinervis, nervis viridibus, denticulatis, lateri- 

 bus complicatis. Lodiculce 2,hyalinae, imberbes, semibifidse. 

 Stamina 3. 



58. PoA ABBREViATA, pauicula simplicissima coarctata 

 subovata, locustis 4-5-floris, glumae valvulis subaequalibus 

 acutissimis perianthia basi lanata lateribus pubescentia 

 aequantibus, foliis involuto-setaceis. 



Desc. Gramen 3-4-unciale. Cidmi foliati, basi saepe 

 divisi, laeves. Folia involuta, subsetacea, retrorsiim scabra, 

 vaxjivfB fere ad basin usque fissne, cylindracenp. Pavicidn 



