SPEGAZZINI: PLANTAE PER FUEGIAM COLL. 93 
graciles, ultra medium vaginati, glabri striati; panicula exerta 
difusa laxissima, radiis semiverticillatis remotis elongatis 
mox patentibus paucispiculigeris, spiculis ovatis 2-floris 
compressulis glabris laevibus, glumis ovatis glaberrimis, in- 
Sera duplo breviore, foribus remotiusculis, glumas conspicue 
superantibus, valvula infera 5-nervia, basi pilis paucis lon- 
giusculis adspersa, supera hyalina margine scabra. 
Hab. Ad marginem laculi montani inter Port Cook et 
Port S. John et prope Ushuuáia. 
Obs. Species praecedenti cognata, G. distanti Mart. etiam 
sat proxima. Annua ?, repens, ad nodos fibris tenuibus rec- 
tis comata; folia pauca glaberrima, mox marcescentia et 
evanida  laevissima, supera erecta, infera subfluitantia, 
vaginis laxiuscule amplectentibus pallidis, inferis breviuseu- 
lis (2-3 cm long.), superis elongatis (5-8 cm long.) striatis 
limbis carinato-planiusculis, utrinque virescentibus eximie 
striatis non glaucescentibus et glaberrimis (5-25 cm long., 
5-6 mm lat.), ligulis hyalinis triangularibus acutiusculis 
2,5-3 mm long.) margine denticulatis; culmi erecti graciles 
rigiduli (20-25 cm alt.) ultra medium vaginati, elabri mi- 
nute striati virides; panicula exerta laxissima diffusa, ra- 
chide glabra laevi angulosa, subimperspicue striatula, ad 
radiorum basin nodulosa sed non manicato-annulata; radil 
saepius 3-( rarius 5-) nati, patuli longissimi (2-10 em long.) 
gracillimi, fasciculis inter se remotissimis (intern. 25 cm 
long.), divaricatissimi saepius simplices, deorsum nudi, sur- 
sum 1- v. 2-ramululigeri v. quandoque simplices flexuosi, 
alterne remoteque paucispiculigeri, angulosi elaberrimi 
laeves; spiculae sessiles v. plus minusve longe pedicellatae, 
_radiis adpressae glabrae laeves lineares (4-5 mm long.) 
compressulae, 2-florae, pallide virides subnitentes, pedicellis 
(si adsunt) vix incrassatulis scabriusculis fultae; flores lan- 
ceolati (3,5 mm long.) e viridi violascentes, supero sub- 
pedicellato, mox caduco, infero diu persistente sessili, 
eglabri laeves vix basi pilis nonmullis hyalinis longiusculis 
adspersi; glumae inaequilongae, infera 1-nervia breviore 
angustiore (1,5-2mm long.), supera 3-nervia latiore atque 
longiore (2,5-2,8 mm long.) apice obtuse acutatae, minutis- 
sime denticulatae; valvulae obovatae, infera 5-nervia apice 
vix attenuato-rotundata repanda minute denticulata, supera 
_Ayalina margine dense serrulato-scabra. 
A 
