ANDROPOGON. ANDROPOGONEA (AUCT. EDUARDO HACKEL). 425 
Pedunculus communis apice parce barbatus. Racemi 4—6 cm. longi, 
plus minus crassi, densi. Spiculæ lanceolatæ, flavo-virentes v. violaceo- 
suffusæ: gluma I™ chartacea, a '/, inferiore sensim longe acutata, 
obsolete bidentula, marginibus late implicata, carinis viridibus superne 
scabris incrassatis valde elevatis, inter carinas profunde depressa, 
lævis, præter nervos carinales nervis 2 illis valde approximatis brevi- 
bus instructa ; II“ acuminata, carina scabra, margine ciliolata v. 
glabra; IHI acuta; IV* rigidule membranacea, ad '/, usque bifida, 
laciniis acutis glabris v. ciliatis, aristam exserens circ. 16 mm. 
longam, columnâ quam subula basi undulata 3—6-plo breviori. 
Antheræ 1,8—2 mm. longs. Pedicelli spiculam 3 subæquantes v. ea 
1/; breviores, articulis simillimi nisi tenuiores; spiculæ tabescentes 
2—4 mm. longæ, subulatæ, plerumque 1-raro 2-glumes, rarissime 
una alterave evoluta, staminifera. 
Subspee. a. genuinus (Hack. in Mart. et Eichl. Fl. bras. vol. 2, 
pars 3, p. 287) ; articulis villis ipsis 2-plo v. plus longioribus vestitis; 
gluma II? mutica. — Saccharum ternatum Spreng. Syst. 1, p. 283; 
Androp. ternatus Nees ! l. e. sens. str. — Racemi erassissimi, densis- 
sime lanati, lana spieulas omnino oceultante; spieule 5 mm. longa; 
gluma I"* callo pilis ipsa paullo—'/, brevioribus barbato; palea glumä 
IV* plerumque duplo brevior. 
In campis Brasiliæ australis (efr. Fl. bras. l. c.); Paraguay (Bal. 
285); Montevideo (Andersson, alii); Argentinia (Lorentz). 
b. eriostachyus; articulis villis ipsis duplo longioribus vestitis ; 
gluma II“ in aristulam 2—3 mm. longam abeunte. — A. eriostachyus 
J. S. Presl! in C. B. Presl Reliqu. Haenk. 1, p. 339. — Racemi cras- 
sissimi, densissime lanati, lana spiculas omnino obtegente. Spieule 
-6 mm. longze, callo pilis glumam sequantibus barbato; palea glumam 
IV*» @quante. Spiculæ tabescentes lineari-lanceolat®, in setulam bre- 
vissimam abeuntes. 
Habitat ex Presl in ins. Philippinis, sed certe americanus, patria ut 
in multis aliis a Preslio commutata. 
c. macrothrix (Hack. l. c.); articulis villis ipsos z:equantibus vesti- 
tis; gluma II“ mutica. — A. macrothrix Trin. in Mém. Ac. Petersb. 
ser. 6, vol. 2, p. 270. — Racemi crassiusculi minus dense lanati, 
spiculis per lanam eonspieuis, 4—4,5 mm. longis; gluma I" callo 
pilis ipsa 5—6-plo brevioribus barbato. Culmi quam in genuino graci- 
liores, elatiores, folia ssepius villosula. 
