59 
"m S. macrogyne, sp. n. ; robusta, fere glabra 5 HUM magna, longe 
appendiculata ; anicula terminali m à, altera minore 
paullo nut EEN addita), basi a ek pana suffulta 5 
stylo 3-fido , nuce magna apice acute pyramidata, fere levi ; disci 
lobis ovatis biberet is. 
S. Martii similis et affinis differt imprimis nuce magna acute 
trigoná, apice peracutá. Culmi apice quam in S. Martii robus- 
tiores, nodis brevioribus in angulis scabri ; vaginae alatae, Folia 
5 dm. longa, bes cm. lata, in ma arginibus scabra, apice 
(quam in S. Martii) maga attenuata. Bractea ima saepe 3 dm. 
longa, foliiformis. Panicu a 10-12 ¢ m. longa, 6-8 cm. lata, quam 
i 
a 
Spiculae masculae numerosae 5-6 mm. longae, lineari-oblongae, 
ferrugineae aut castaneae ; foeminae 1 cm. longae 5 gluma 
inea 8-9 mm. lo 
reticulata, minutissime albo-pilosa ; discus brevissimus fere 
patelliformis peius margine latiusculo tenui albo patente; eu 
m 1 parte nucis aequilongi, firmiores lutescentes in margin 
E 
“BRITISH GUIANA. Parker, Appun, n. 448 ; Massaruni a 
en nn. 2463, 6088. BRAZIL. Piauhy, yet men 2985 ; 
Negro; San Joaquin, Ule, n. 6065. [7 or 
SILE S. ramosa, sp. n. i robusta, fere glabra; caule d ligula ab 
appendieulá magna rotunda scariosd terminata ; pan culis termi- 
nalibus, densis, rigidis; stylo 3-fido ; nuce trigono-ovoided levi 
minute pubescente ; disci margine horizontali, lobis subn 
Culmus robustus triqueter, a vaginis latius trialatis fere beds 
ad 
dm. longa, usque a em. lata, in margine perscabra, 
subtrinervia; ligulae appendicula 1 em. et ultra in diam., tenuis, 
pallida subintegra.  Panicula 1 Em lata, fusce 
stram rum castaneo-tineta ; rhachis minute pubescens 
Spiculae (ut in speciebus affinibus) masculae tenues per- 
numerosae, dense paniculatae, foemineae paucae m multo majores 
j i itari Nu . 
uta, strami 
fuscescens. Discus late conicus, cum nuce fere concolor, 
truncatus.—Species in fr accipi viso 25 em. longo 5 ramos 
(quorum 4 a panieulis terminati) emittens 
“BRAZIL. Burchell, n. 8413 (hb. Ro [7747] 
3728 S. parallela, sp. n.; minute pilosa, foliorum marginibus con- 
spicue parallelis ; nin ulis magnis, vix scarioso-marginatis ; 
angulari, subacutá, alba, minute transversim verrucosa ; disci 
lobis novit ovatis, truncatis, patulis. 
Culmus saltem metralis, in parte media robustior, sursum in 
imeem gracilam abeuns. Folia 24 cm. longa, 12 mm. lata, a 
basi u 
gularia A a c cauda án m. longa terminata, conspicue Sarvs, 
parum sca in Br ang uperiore pilosa, inferiore glabrata 5 
ligulae 7-10 mm. longae, late ovatae, obtusae, pilosae, margine 
