138 CONTRIBUTIONS 
disco atrofuscis, margine hyalinis, carina pallidis, ovato-lanceolatis; caryopsi magna, 
trigona, tuberculo styli amplo coronata ; stigmatibus tribus, fuscis, exsertis. 
Rhizoma breve, oblique descendente, ramoso, radicibus crassis firmisque. Culmi 
plurimi erecli vel divergentes, sulcati, vix compressi, subrigidi, 20 cm. alti. Vaginæ 
basi ferrugineæ, superne pallidæ, ore purpurascenti oblique truncatæ, postice lan- 
ceolato-productæ. Spicæ solitariæ, 10-15 mm. longæ, teretes, acuminatæ. Squamæ 
densæ, ovatæ, rotundæ, obtusæ, sanguineæ, margine angustata hyalinæ, carina sub 
apice evanescente pallidæ; infima magna cæteris similis. Caryopsis magna, ‘/, vel */, 
squamam æquans, trigona, angulis prominulis obtusis, ovoidea, Iævis, albida, rostro 
valido, albido, trigono coronata. Stylus trifidus, stigmatibus ferrugineis, papillosis, 
complanatis, exsertis. Filamenta tria, longa, antheris longis, superne vix appendicu- 
latis. Setæ ferrugineæ, scabridæ, tenuissimæ, caryopsin subæquantes. 
Tabula XL, A: 1, facies; 2, spicula; 3, pistillum ac filamenta; 4, squama ; 
5, anthera; 6, caryopsis. 
Inter Æ£. montanam Rœm. et Schult. et Æ. sulcatam Nees collocanda. 
Liangu, prope Villa- Rica, in pratis paludosis, Octobr., n. 436. 
E. GranDis Bckler, L. ce. XXXVI, p. 453. — Scirpidium grande Nees ab Esenb., 
L c., p. 97; — Isolepis nudipes Kuntbh, L. c., p. 206. 
In pratis paludosis, Pastoreo-mi, ad ped. orient. Cordilleræ Villaricensis, Septembr., 
n. 421 et 422%; in pratis humidis, Capitindu, ad ped. orient. Cordilleræ Villaricen- 
sis, Septembr., n. 422. 
Area geog. Brasilia, Montevideo. 
E. VILLARICENSIS n. sp. Rhizomate tenui; culmis pluribus, cæspitosis, capillaceis, 
minutissime punctulatis, subtetragonis, spiculis solitariis, primum lanceolatis, 1-2 mm. 
longis, deinde late ovatis; squamis fructiferis patentibus; caryopsi albida, turgide 
biconvexa, marginata; rostro lato; stylo deciduo; setis perbrevibus vel nullis. 
Rhizoma tenue, elongatum, filiforme, radicibus capillaribus fasciculatis. Culmi 
plures cæspitosi, capillares subtetragoni vel obsoletissime teretes, lateribus sulcatis, 
dense sanguinis-punctulis conspersi, stricti, rigidi, 2-6 m. alti. Vaginæ basi purpuras- 
centes aut omnino albidæ superne hyalinæ, ore oblique truncatæ, postice parum lan- 
ceolato-productæ. Spiculæ solitariæ minimæ, 1-2 mm. longæ, lanceolatæ, post anthe- 
sin late obovatæ, 6-8 floræ. Squamæ trispiræ, elliptico-ovatæ, apice subrotundæ 
sæpius emarginatæ vel bilobatæ, carinato-naviculares, carina viridula vel pallide 
rosea, lateribus sanguinescentibus plarinerviis aut striolatis; squama inferior, cæteris 
