1152 €C. GRAMINEJE. [Agrostidec. 
brevem sepius producta, flore hermaphrodito. Glum:e 3, 2 inferiores sub articulatione 
persistentes, vacuse, angustze, a basi carinatze, acutze, mutics, parum inzequales ; tertia 
florens subtriplo brevior, tenuiter hyalina, lata, apice truncato-dentata et in setas 2 ad 
latera aristze producta, arista prope basin dorsalis, subtorta, e spicula exserta v. abbreviata; 
palea angusta, gluma vix brevior. Stamina 3. Styli breves, distincti, stigmatibus 
plumosis. Caryopsis ovoidea, glumis non ventricosis inclusa, libera.—Gramen annuum, 
cwspitosum, foliis planis. Panicula spiciformis, longiuscule pedunculata, nitidula, Gluma 
florens pubescens. 
^ Species 1, regionis Mediterranec occidentalis ineola. Coss. e£ Dur. Expl. Alg. t. 40, f. 1 (Gastri- 
diu). Habitu quidem Gaséridio accedit sed characteribus 4grosti affinior. 
: 138. Apera, Adans. Fam. Nat. ii. 495. (Anemagrostis, Trin. Fund. Agrostogr. 198.)— 
Bpicule 1-flore, parve, laxe paniculatze, rhachilla supra glumas inferiores articulata, sub 
gluma florente brevissima glabra, ultra florem in setam brevem producta, flore herma- 
phrodito. Glum:e 3, 2 inferiores vacus, sub articulati persistent inzequales, 
tenuiter membranaces, carinatz, aeubw, exaristatwe, secunda 'csteris major, 3-nervis ; 
tertia florens paullo brevior, membranacea, subhyalina, apice breviter 2-fida, arista sub 
apice dorsali tenui flexuosa instructa; palea tenuis, gluma parum brevior, 2-carinata, 
92-dentata. Stamina 3. Styli distincti, breves, stigmatibus plumosis. Caryopsis angusta, 
gluma inclusa, libera.—Gramina annua, el tiuscula, foliis angustis planis. Panicula 
terminalis, elegantissima, ampla diffusa v. contract ramis is filiformibus ramu- 
losis, inferioribus fasciculatis subverticillatis, spiculis issimis nitidulis. 
: Species v. varietates insignes 2, Europe et Asie occidentalis incole. —.Beauv. "Agrostogr. 31, d. 7, 
JLYM OKunth, Eum, Pl. i. 925 (Agrostis),  Steud. Syn. Pl. Glum.i. 177 (Muehlenhergie spec. n. 9 
€t 6G). — Host, Gram, Austr, Yi. t. 47, 48. — Reichb. le. Fl. Germ. t. 32... Necs, Gen. FI. Geri. 
AMonocof, i. 2. 30. 
,. 139. Cinnagrostis, Griseb. Pl. Lorentz. 208, t. 2, f. 7.—Spicule 1-flore, parvulm, in 
panicula androgyna: unisexuales, rhachilla supra: glumas inferiores articulata glabra, ultra 
florem in setam longe pilosam producta. Glum:e 3, 2 inferiores vacu:e, sub articulatione 
persistent b , l-nerves, acutz ; tertia florens vix longior, b-nervis, denticu- 
lata, arista setiformi medio dorso instructa ; palea glum:ze subeequalis, in flore d* 2-nervis, 
in flore 9 l-nervis.—Gramen elatum, perenne, foliis planis. Panicule rami patentes, 
semi-verticillati, flexuosi. (Char. ex Griseb.) 
Species 1, provineiz Tucuman Americee australis incola, a nobis non visa, Genus verisimiliter ad 
JDeyeuxiam reducendum, 
. 140. Deyeuxia, Clarion in Bewww, Agrostogr. 43, t. 9, f. 9, 10. (Lachnagrostis, 
Trin. Fund. Agrostogr. 198 5 Spec. Gram. 1. 242, 249.) Spiculs 1-forz, varie panicülatze, 
Swpius densc, rhachilla supra glumas inferiores artieulata, sub gluma florente annulo 
pilorum instructa v. rarius glabra, ultra florem in setam pilosam v. apice penicillatam 
rarius glabram sepissime producta, flore hermaphrodito. Glum:e 3, 2 inferiores vacuze, 
sub articulati persistentes, parum inzequales, carinatze, muticze, membranace:e v. scari- 
ose; tertia florens nune brevior fere hyalina, nunc secunde :equalis y. vix. longior 
rigidiorque, lata, 9-nervis, integra v. 2-4-dentata, arista tenui torta infra v. supra medium 
dorsali, rarius brevissima recta v. obsoleta; palea tenuis, glum:e zequalis v. subdimidio 
brevior, 2-nervis v. 2-carinata. Stamina 3. Styli distincti, breves, stigmatibus plumosis. 
Caryopsis obovoidea v. oblonga, sspe obliqua, gluma paleaque tenuibus inclusa, libera 
y. lis siccitate partim adhmrens,—Gramina habitu vario, sepius perennia foliis planis. 
Panicula terminalis, nunc stricta densa spiciformis subcylindracea v. oblonga, nunc 
sepius thyrsoidea, interdum effusa fere Agrostis, spiculis tamen srpissime majoribus. - 
Species fere 120, per regiones temperatas montanasque utriusque orbis late disperse, in Andibus 
Americanis numerose, usque ad terras frigidas tam hemispherii australis quam. borealis extense, 
