of the Galapagos Archipelago. 173 
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Gramen rigidum, glaberrimum, lzve. Radix, ut videtur, vagé repens. Culmi prostrati, 
elongati, nudi, geniculati, pluri-nodosi, ad nodos dichotomé ramosi, teretes, glaberrimi, 
duri; nodis tumidis. Rami ex imá basi curvatá adscendentes, 4-6-pedales, deinde 
erecti, rigidi, apicem versus foliosi, internodiis sub 2-3-uncialibus. "Vaginz cylin- 
dracez, internodiis 4 breviores, striate, ad basin fisse, marginibus mox involutis, 
3-4 unc. longe, 2 lin. late. Spicz solitariz et binz, terminales vel axillares, filiformes, 
foliis subbreviores. Rachis undulata, sub lente pubescens. Spicule alternze, subses- 
siles, distichze? 4 lin. longz, glaberrime, basi setis brevibus scabridis suffulte. Gluma 
inferior minima, orbiculari-ovata, 3-nervis, paleis 1 brevior, ad apicem acuminatum 
eroso-ciliata. Floris inferioris palea ovato-lanceolata, acuminata, chartacea, 5-nervis, 
glabra; floris superioris palea inferior subsimilis, concava, 3-nervis ; superior subzequi- 
longa, 2-nervis. Squamule 2, obovato-quadrate, truncate, Stamina 3. Ovarium 
minimum, ovatum; stylis 2 elongatis; stigmatibus plumosis. Caryopsis latè ovata, 
obtusa. 
Apparently a widely-creeping and probably binding littoral grass. The 
upper palea of the fertile flower is decidedly 2-nerved. 
45. Eurriana pitosa, Hook. fil; spicis horizontalibus, locustis sub 4 con- 
fertis 2-floris, floris inferioris paleà inferiore 3-nervi ad apicem trifidá 
segmentis subulato-aristatis; superiore bifidà bicarinatà carinis minut? 
scabridis, floris superioris paleà 1 (nempe exteriore) bifida inter segmenta 
ciliatà longè aristatà nervis lateralibus ultra segmenta in aristas breves 
productis, foliis vaginisque suprà lax? patentim pilosis. 
Hab. Albemarle Island, Mr. Macrae. 
Gramen erectum, gracile, 1j-pedale. Radix fibrosa. Culmi fasciculati, e basi ramosi, 
erecti, vel geniculati et adscendentes, ter quaterve nodosi, teretes, glaberrimi, striati, 
foliosi, nodis contractis brunneis. Vaginz cylindracez, sulcatz, inferné glabre, su- 
perné parcé pilose, pilis basi minut? tuberculatis, infra medium interdum ad basin 
fisse, 2-3 unc. longe, ad orem penicillato-barbatz. Folia plana, lineari-lanceolata, 
divaricata, attenuata, acuminata, pilosa, pilis laxis mollibus patulis, 2-3 unc. longa, 
lilin.lata. Spice horizontales, rariüs suberectze, brevi-pedunculate, secunda, } unc. 
long ; rachis compressa, ultra locustas in laminam subulatam ad apicem bifidam pro- 
ducta. Locuste in quávis spicá sub 4, fasciculatz, bifloræ; flos superior imperfec- 
tus. Glume 2, acuminate, l-nerves, nervo lato dorso scabrido; superior apice vix 
bifida, subcarinata; inferior minor basi subremota. Flos inferior hermaphroditus, bre- 
viter pedicellatus.  Palez 2, inferior ovato-lanceolata, dorso superné 3-nervis, nervo 
242 
