384 MONOCOTYLEDONEJE. HYPODISCUS. 
mis obscure striatis; vaginis arctis oblongis longe acuminatis ; spi- 
culis masculis oo in cymas paniculiformes densas terminales aggre- 
galis, singulis ovatis v. subrotundis; bracteis oblongo lanceolatis 
aristatis ; spiculis femineis solitariis vel geminis oblongis 1-floris; peri- 
gynio nullo (?) ; fructu stipitato, stipite crasso irregulariter lobato. — 
.Leucoplœus argenteus, Nees in Lindl. Nat. Syst. gm 2, p. 450, et in 
ond. (nomen tantum). Restio argenteus, Thun 
% Culmi cæspitosi erecti teretes simplices submetrales crassitie 
penne gallinaceæ olivacei leviter longitudinaliter striati albido-lepi- 
doti basi squamis ovatis v. oblongis coriaceis ferrugineis nitidis dense 
approximatis vestiti, superne remote vaginati. Vaginæ culmeæ 2-3 cent. 
arctæ longiuscule acuminatæ fuscæ coriaceæ ad margines apicemque 
tenuiores laceræ. Panicula mascula terminalis 5-6 cent. long. plurira- 
mosa ramulis filiformibus spathis 3-4 magnis apertis nitidis vaginifor- 
mibus demum deciduis munita. Spiculæ mascule 5-6 mill. long. ob- 
longo-ovatz v. subrotundæ. Bracteæ arcte imbricatæ oblongæ longe 
acuminatæ membranaceæ albidæ flores ovatos compressos arcuatos 
stipitulatos 2-3-plo superantes. Perianthii segmenta rigidiuscula fer- 
ruginea oblongo-lanceolata acuminato-mucronata, lateralia naviculari- 
conduplicata carinata, carinis glabris ; intermedium planiusculum ; in- 
terna 3 externa æquantia vel superantia; lateralia ad margines superne 
parum involuta ; intermedium planiusculum. Antheræ lineares ferrugi- 
neæ, mucronulo albido terminate. Spice femineæ in apice culmi 
solitaria quandoque 1-3, oblongæ erectæ 15-20 mill. spatbis vaginifor- 
mibus magnis coriaceis nitidis striatis margine laceris suffultæ. Brac- 
teæ rigidæ oblongo-lanceolatæ acuminatæ pallidæ versus apices pur- 
purascentes nervoso-striatæ. Flos unicus terminalis, bractea stipante 
brevior. Perianthium nullum (an semper?). Fructus oblongus obtusus 
osseus lævis nigrescens stipiti brevi crasso D UTE lobato impo- 
v Prom. B. Sp. (Eck, et Zeyh. 52.8 et 75.5), A (Zeyher, 4338) 
cf et Q. Drége, 1642 proparte, ad montes Bavians Kloof (Burchell, 7901, 
etad Nieuwe Kloof, 8117); Palmit Rivier (Ecklon, 972) £. Valley Riviers 
Port (Burchell 7058, et ad Nieuwe Kloof, 8129), (Zeyher 4337) 9. 
6. H. Neesii (Mast. in Journ. Linn. Soc. 10, p. 260); culmis fistu- 
losis profunde longitudinaliter sulcatis; vaginis arcte convolutis lon- 
giuscule setaceo-aristatis; spiculis masculis 5-8, in cymam simplicem 
linearem disticham dispositis, singulis laxis oblongis ob spathas deci- 
duas denudatis; bracteis longe acuminatis ; spiculis femineis 2-3, in 
apice culmi distiche dispositis spatha vaginiformi duplo-longiore suf- 
fultis; ovario oblongo superne lobis clavatis notato. — Leucoplœus 
striatus Nees. mss. in herb. Sond., absque descript. 
