1140 OC. GRAMINEJE. [Phalaridec. 
vacuis sublongior, latissima, hyalina, tenuissime 4-5-nervis, florem involvens, marginibus 
i plus minus in tubum connatis, dorso infra medium arista brevi v. mucrone instructa ; 
palea ecterum 0. Stamina 3. . Styli a basi distincti, stigmatibus elongatis pilis brevibus 
subplumosis. Caryopsis ovato-oblonga, glumis tenuibus inclusa, libera.— Gramen annuum, 
caulibus cwespitosis, foliis angustis. Pedunculi in axillis superioribus gemini, insequales 
v. ad apices ramorum fasciculati, 1-cephali, demum sub involucro incrassato rigidi recurvi. 
Species 1, Orientalis, —ScAreb. Beschr. Grüs. 1. 41. —Beawv. Agrostogr. 3, (. 4, f. 8, 4. Kunth, 
Enwm. Pl.i.21. Sm. Spicileg. Bot. t. 14. Sibth. Fl. Grec. t. 51. 
107. Alopeeurus, Linn. Gen. n. 78.—Spicule 1-florze, complanatee, in spica seu pani- 
eula spiciformi cylindracea confert, cum pedicello apice calloso articulate, flore herma- 
phrodito. Glums 3 v. 4, 2 exteriores vacus acute mutiez v. breviter aristatwe, basi 
interdum in tubum connate complicato-carinatz, carina ciliolata v. subalata, tertia lata, 
obtusa, hyalina, 3-nervis, dorso arista brevi v. mucrone instructa, marginibus basi interdum 
in tubum connatis, florem involvens; quarta (v. palea) dum adsit sub flore angusta, 
hyalina, carinata, acuta, intra tertiam semi-inclusa ; palea ceterum 0. Stamina 3. Styli 
distincti v. basi rarius ad medium connati, stigmatibus elongatis pilis brevibus sub- 
plumosis.—Gramina annua v. perennia, erecta v. basi decumbentia, foliis nune planis 
flaccidis, nuncrigidulis tereti-convolutis. Spicz v. paniculie spiciformes, terminales, supra 
vaginam folii superioris longe ped lat 
Species vix 20 (ultra 40 in operibus variis enumeratte), Europee et Asice temperat incole, quarum 
2 v. 3, per alias regiones utriusque orbis latissime dispers:e stepe tamen inquilinm. Beauv. Agrostogr. 
4, t. 4, f. 0, 6. Schreb. Beschr. Grüs. t. 19, f. 1,2. Steud. Syn. Pl. Glum. i. MAT. Trin. Spec. 
Gram. t. 1, 2, 87 ad 46, 241. Kunth, Rev. Gram. t. T. Jacg. Ecl. Gram. t. 13; Ie, Rar, t, 301 
(Phleum). Host, Gram. Austr. ii. t. 31, 32, iii. &, 12. Nees, Gen. Fl, Germ. Monocot, i. m. 7. 
Tieichb. Ic. Fl. Germ. t. 49. Sibth. Fl. Grec. t, 63, 64. Hook, f. Fl, Antarct.t.130. Buchan. 
N. Zeal. Grass, t. 5. 
CorosAcHNE, Beauv. Agrostogr. 22, t. 6, f. 9, Nees, Gen. Fl. Germ. Monocot. i. a. 8, Reichb, Ic. 
FL Germ. t. 60, f. 1480, species continet paucas spica sepius brevi densa, glumis exterioribus 
aristatis, quarta lineari v. lanceolata plus minus evoluta, h:ee tamen etiam Sepe apparet in 4. pratensi, 
et semper distincte 1-nervis. " 
Tozzerr1A, Savi in Mem. Soc. Ital. Sc, viii. 477, est A. utriculatus, Pers., Host, Gram. Austr, iii, 
t. 1 (Phalaris), glumis inferioribus vacuis basi in tubum connatis. 
Tarsus VIIL | AaROSTIDEX, e. 
108. Aristida, Linn. Gen. n. 94.—Spiculce 1-floree, anguste, paniculatee, rhachilla supra 
glumas inferiores articulata, sub flore anguste obconica v. vix incrassata, ultra florem non 
producta, flore hermaphrodito terminali. Glumz 3, 2 inferiores vacuse sub articulatione 
sepius persistentes, angustse, carinatze, muticz, tertia florens angusta, rigidula, circa 
florem arcte conyoluta, acumine in aristam trifidam v. 3-partitam producto, sub divisione 
recta v. torta, ramis setaceis v. centrali flexuoso v. centrali v. omnibus plumosis, latera- 
libus rarius abbreviatis erectis rarissime obsoletis; palea 2-nervis, gluma arcte inclusa, 
interdum lodiculis subsimilis v. brevior, nune minima v. obsoleta. Lodicule 2. Stamina 3. 
Styli distincti, stigmatibus plumosis. Caryopsis angusta, gluma arcte involuta, libera.— 
ramina cwspitosa, humilia v. elatiuscula, foliis angustis sspe convoluto-setaceis. Pani- 
cula variat effusa ramis patulis, v. angusta, interdum fere ad reducta. 
Species editze numerosse et. fere 100 bene distinguendze videntur, per regiones calidiores utriusque 
orbis latissime dispersz, in Europa tamen et Asia extratropica pauciores; in America boreali plures. 
Kunth, Enwm. Pl.i.187. Trin. in Mem. Acad. Sc. Petersb. ser. 6,v. 99, Steud. Syn. Pl. Glum. 
1.132. Dell in Mart. Fl. Bras. ii. iii, 11, 4. 3 ad 6. Fourn. Gram. Mex, 76... Benth. Fl. Austral. 
vii. 660, et in Journ. Linn. Soc. xix. 79. 
Lodiculas deseripsit 3 Nees in Fl. Afr, Austr. Gram, quoad secet. Chetariam; Dell. e., quoad 
genus totum, Ex Kunthio Trinio aliisque 2 tantum adsunt quod ex observationibus nostris con- 
