424 MONOCOTYLEDONEJE. ANDROPOGON. 
nostræ convenire videtur, reperitur vero, teste Munro in Journ. Linn. 
Soc. vol. 6, in herbario Linnæano sub A. divaricati nomine specimen 
A. ternati Nees. Hæc species austro-americana A. argyreo ita affinis 
est ut Munroum eas confudisse suspicari liceat. Interea A. divaricatus 
L. species manet dubia. Alii eum A. scoparium Michx. esse putant. 
46. A. Cabanisii (Hack. in Flora 1885, p. 133); rhacheos arti- 
culis villis laxiusculis, summis articulo subbrevioribus vestitis; gluma 
I» preter nervos carinales nervis 2—3 tenuibus percursa, dorso- 
scabro-punctata ; palea obsoleta v. nulla. 
Culmi 60—100 em. alti, graciles, a !/, v. !/, inferiore ramosi, ramis 
inferioribus solitariis v. binis, primariis elongatis, gracilibus, arcuato- 
patentibus, 1—2-nodibus, ad nodos glabris, secundariis nullis v. soli- 
tariis, brevibus. Vagin® glaberrimse v. scaberule. Lamine 10—20 
em. longs, 2—3 mm. late, plan® v. complicatee, glaucescentes, sub- 
tus leves, supra hispidul®, margine scaberul&, basi interdum fim- 
briatze. Spath& propric: 6—8 cm. long, interdum laminze rudimento 
setaceo munitz,.glabre, virides, a racemis plerumque remota. 
Peduneulus communis apice dense barbatus. Racemi 4—4,5 cm. longi, 
erassiusculi, articulis spicula 8 '/, brevioribus. Spicule lanceolatz, 
5—6 mm. longs, pallide virentes, ob lanam parciorem conspicue: 
gluma I= a medio attenuata, apice subintegro acutiuscula, inter 
carinas aculeolato-scabras parum depressa, callo pilis ipsa 3—4-plo 
brevioribus barbato; IM oblonga, obtusa, ciliata; IV* ciliolata, 
aristam emittens tenuissimam 14—20 mm. longam, columna 1—3- 
spira paullo e glumis exserta. Anthere 3 mm. longs. Pedicelli 
spieulam 9 squantes, articulis simillimi ; spicula tabescens uniglumis 
subulata 3 mm. longa ereeta v. erecto-patula. 
Pennsylvania et Florida (Cabanis in h. berol.); pr. Apalachieola in 
civ. Florida (Chapman mixt. mis. c. A. arctato). 
tt Culmi simplices v. e nodis 1—2 superioribus ramos solitarios simplices szpius breves agentes. 
47. A, ternatus (Nees Agrost. bras. p. 326 ampl.). 
Culmi 30—70 em. alti, subrobusti. Vagine glabr&. Lamins infe- 
riores 10—25 em. longs», 2—6 mm. lat, acutiusculs, virides, demum 
rubentes, excepto margine scaberulo leves, nune glabrz v. basi 
tantum fimbriat®, nune undique v. supra tantum villosule. Spathæ 
proprie 6—8 em. longs, a racemis sepius longe remote, rarius in 
lateralibus earum basin attingens, spe laminæ rudimento instructz. 
