144 
(TAB. LXXVL] | 
HOLBOELLIA ORNITHOCEPHALA. 
Trianpria MowocGyNiA? Nat. Ord. GRAMINEZ. 
Gen. Cuar.—Hoxporusia. (Wall, MSS.)— Flores racemosi, 
monoici v. polygami. Pedicelli basi geniculati. Gluma 
nulla. Perianthium uniflorum, bivalve. Valve inzequa- 
les, carinatz, pectinato-ciliatee; exteriore majore basi su- 
perne insigniter gibbosa, inferiore sub apicem unidentata. 
Semen basi superne gibbosum perianthio cartilagineo 
tectum. 
Holboellia ornithocephala. (Tas. LX XVI.) 
Gramen perelegans. Radix annua, fibrosa, fibris flexu- 
osis, pallidis, subsimplicibus, non raro tomentosis. Culmi 
subcæspitosi, spithamæi ad pedalem, plerumque ad basin 
subdecumbentes, dein erecti, foliosi, vaginati. Folia 
lineari-lanceolata, bi-triuncialia, rigidiuscula, flexuosa, 
undulata, acuminata, glabra, pulcherrime striata, mar- 
ginibus cartilagineo-albis, antrorsum  scabris, inferne 
caulem longe vaginantia: supremo ad basin racemi. 
Racemus terminalis, simplex, digitem longus, lineari-cylin- 
draceus, erectus, multiflorus. Rachis stricta, striata, Sa 
briuscula. Pedicelli sesquilineam longi, scabriusculi, sur- 
sum incrassati, utrinque ciliati, inferne ad rachin articu- 
lati atque geniculati. Flos singularis atque capiti avs 
fere exacte emulans. Gluma nulla. Perianthium bivalve, 
simplex; valvis lateraliter compressis, minute elevato- 
punctatis, acute carinatis, tricristatis, crista e mem 
brana cartilaginea diaphana, pulcherrime  pectinato- 
ciliata: valva exteriore bicristata, ciliis apice uncinalls 
basi insigniter gibbosa, galezformi: inferiore multo 
minore, sub apicem dente unico, valido instructa, subtus | 
unicristata, ciliis apice vix uncinatis. Pistillum stylis 
plumosis. Semen perianthio indurato nigrescente tectum, 
oblongum, subacuminatum, basi superne gibbosum, 1- 
ferne depressum. 
