148 CONTRIBUTIONS 
Corrientes, Bonpland; Palmas Altas, n. 2066, Santa-Ana, Campo Eré, n. 2066”, 
G. Niederlein. 
Area geog. Africa tropicalis et australis, America meridionalis, insulæ Antillenses. 
SC. sCABROSA n. sp. Rhizomate elongato, fibrigero, obliquo; culmis plaribus, basi 
aphyllis, subflaccidis, tenuibus, striatis, glabris; foliis subrigidis, dilatatis, longe acu- 
minalis, planis, nervo medio margineque scabridis; spica gracili; spiculis fasciculatis, 
alteris sessilibus, alteris pedicellatis; bracteis fasciculorum setaceis hirtellis; squamis 
ovato cuspidatis; caryopsi subtrigona, apiculata, reticnlato-undulata, sordide lactea; 
perigynio angusto, trilobo. 
Rhizoma oblique descendens, fibrillis flexuosis rigidis. Culmi plures, basi aphylli, 
50-55 cm. longi, subflaccidi, triangulares, æquilaterales, striati, Iæves, glabri, vaginæ 
angustæ basi marginibus hirtellis, ore vix ampliato postice productæ, antice lobulo 
brevi rotundatæ. Folia linearia, 20 cm. longa, 6-8 mm. lata, longe acuminata, ner- 
vosa, nervo medio superne scabrida, supra glabra, subtus pilis raris conspersa. Spicæ 
6-10 em. longæ, graciles, simplices. Rachis triquetra, angulis pilosis. Spiculæ fascicu- 
latæ, lanceolatæ, 4-5 mm. longæ, bracteis setaceis, perangustis, hirtellis basi suffultæ. 
Squamæ ovato-lanceolatæ, longe cuspidatæ, carina viridi margineque interdum pilo- 
sulæ, rufescentes, mucrone hirtellæ. Caryopsis Subtrigona, sordide lactea, irregulariter 
reticulato-undulata, apice mucronata, basi contracta. cuneato-attenuata; lateribus sti- 
pitis brevis nitidis, sulcato-porosis, lævibus, planis. Perigynium angustissimum, trilo- 
batum, pallidum, margine obtusum. 
Tabula XLIV, A : {, facies; 2, squama infima; 3, squama intermedia ; 4 et 4”, 
car yOpsis. 
Sc. leptostachyæ Kunth et Sc. hirtelle Sw. maxime proxima, ab illis tamen distin- 
guitur imprimis foliüs latioribus, squamis cuspidato-hirtellis, caryopsi muricata. 
Potrero de Cosme, inter Villa-Rica et Caaguazu, in paludosis, Novembr., n. 450. 
Sc. BALANSÆ n. sp. Rhizomate elongato. squamoso, culmis strictis, firmis, acutan- 
gulis, striatis; foliis distantibus, rigidis, acutis, glabris, inferioribus elimbatis, pilosis ; 
fasciculo terminali solitario; spiculis ovato-lanceolatis; squamis ovatis, acutis, lateri- 
bus atropurpureis ; caryopsi ovoidea, apiculata, nivea, lævi, nitida; perigynii interio- 
ris tuberculis 6 sordide albis. 
Rhizoma horizontale vel parum descendens squamosum, squamis nerviis fuscis. 
Culmi subseriati, plurimi, stricti, 35-65 em. alti, triquetri, angulis obtusis, lateribus 
planis, sulcatis, 2-3 mm. lat foliati. Folia distantia, rigida, acuta, lævia nec scabra, 
