134 -MONOCOTYLEDONEJE. ERIANTHUS. 
præter callum glabris : sessilium gluma I" binervi, II^ 3-nervi, MF 
hyalina, 1—2-nervi, pedicellatarum gluma I^* 2-nervi. — Saccharum 
asperum Steud. Synops. 1, p. 407. 
Culmi robusti, ultra 2 met. alti, plurinodes. Vagin® nodis barbatis, 
infimze squamzeformes, basi villosulze. Ligula brevis, truncata, mem- 
branacea, glabra v. ciliolata. Lamin: e basi angustata sublanceolato- 
lineares, setaceo-acuminatze, culmeæ usque 80 cm., innovationum 
ultra 1 met. longze, culmeæ 0,6—2 em. latze, glauco-virides, undique 
plus minüs scabra, basi sepe barbate, nervis primariis utrinque 
6—8, secundariis inter illos 3—5""* percurss®. Panicula ovato-oblonga 
v. oblonga 20—40 em. longa, modo longiuscule exserta modo basi 
vaginata, stricta, argenteo-villosa v. subviolaceo-suffusa ; racemi 
3—5 em. longi, 8—12-articulati, graciliores, erecto-patuli, articuli 
pedicellique spicula !/,—'/, breviores, elavati, erassiuseuli, dorso sub- 
carinati, carina marginibusque pilis albis mollibus articulum sequan- 
tibus decrescentibus fere ad apicem usque laxe ciliatis. Spiculæ ses- 
siles lanceolatze, villis involuerantibus plerumque breviores, pallide v. 
leviter violaceo-suffus® ; gluma I™ chartacea, acuta, bidenticulata, 
marginibus arete inflexa, flexuris in '/, superiore scabris, viridi-v. 
violaceo-lineatis, dorso plano glaberrima, preter nervos flexurales 
enervis ; II^ lanceolata, acuta, carinata, carina superne scabra, gla- 
bra; IIF quam I^ '/, brevior, lanceolata, acuta, margine superne 
ciliolata v. glabra; IV* quam II? vix !/, brevior, lineari-lanceolata, 
acuta, hyalina, glabra, inferne 3-nervis, ex apice integro aristam im- 
perfectam rectam emittens ; palea glumá suä 2—3-plo brevior, ellip- 
tica v. lanceolata, glabra v. apice ciliata. Lodieule glabre. Antheræ 
2 mm. long&. Styli stigmata »aquantes. 
Var. a, typicus (Hack. in Mart. et Eichl. Fl. bras. vol. 2, pars 3, 
p. 260). Culmi superne glabri, scaberuli. Vaginz glabr&, inferne 
valde scabrze. Laminze glabr& v. basi eiliat®. Panicula ovato-oblonga, 
rhachi parce pilosa. Spieule 6 mm. longs involucrum subzequantes. 
Arista spiculä subduplo longior. 
In Brasiliz: prov. Minarum ad ripas fl. S. Francisco (Martius). 
ß, brasilianus (Hack. 1. e., p. 259, tab. 61, fig. 1). Culmi infra pani- 
culam sericei. Vagin® superne villosulze raro glabrescentes. Lamina 
supra puberuls rarius utrinque sericeo-pubescentes v. glabræ. Pani- 
cula oblonga, rhachi dense sericea. Spieule 4—5 mm. long&, involu- 
cro '/, breviores. Arista spieulam ipsius longitudine v. paullo plus 
superans. — Saccharum brasilianum Trin.! Mém. Ac. Petersb. ser. 6, — EC 
vol. 2, p. 311, Erianth. brasilianus Anderss. 1. c., p. 162. - 
