1202 CO. GRAMINEJE. [Festucec. 
tibus minores et brevius aristatz v. mutiete, ceterum similes ; florentes rigidulze, anguste, 
dorso rotundatze, 7-9-nerves, integrz, in aristam rectam interdum longam v. in mucronem 
brevem desinentes; palea gluma vix brevior, latiuscula, 2-carinata, carinis ciliatis. 
Stamina 3, rarius 2. Ovarium apice ciliato-villosum v. appendicula brevi villosa coro- 
natum; styli brevissimi, stigmatibus plumosis. Caryopsis linearis v. anguste oblonga, 
a digo: compressa, antice late suleata v. concava, siccitate palece plus minus adhzerens.— 
Gramina perennia v. annua, erecta, foliis planis v. convoluto-teretibus. Spica terminalis, 
rhachi non articulata et vix ad nodos excavata. Spicule paucse, ssepius distantes sub- 
erectz, interdum ad unam terminalem reductz, sepius majusculre, floribus sat numerosis. 
Species 5 v. 6, Europ et Asi; temperat: v. montanz incole, quarum I v. 2 etiam in Africa 
tropica et australi Colombia et Mexieo obviz.  Kunth, Enuzn. Pl. i. 445 (Tritici sect). Coss. et Dur. 
FL. Alg. Glum. 189. . Reichh. Jc. Fl. Gerin. t. 16 ad 18. — Nees, Gen. Fl. Germ. Monocot. i. n. 10. 
Host, Gram. Austr. i. t. 20 ad 22, iv. t. 17 ad 19 (Bromus). — Sibth. Fl. Gr. t. 8& (Bromus). Guss. 
Pl, Rar. Ic. t. 1 (Festuca). | Boiss. Voy. Hisp. t. 180. Ten. FI. Nap. t. 104, f. 2. 
Genus Festucam eum Agropyro arcte connectit. 
Tnacuvwu, Link, Hort. Berol. i. 42, Reichb. Ic. Fl. Germ. t£, 14, est. B. distachyum, Rom, et 
Schult., species a ezeteris parum diversa caule annuo, spieulis sepius 1-2, glumis minus imbricatis 
fere pectinatis. 
Tarsus XII. HomDpEExX. 
265. 1ohum, Linn. Gen. n. 95.—Spicule oc-flore, in spica simplici (v. abnorme 
ramosa) ad excavationes rhacheos solitaris, sessiles, alternse, distichse, compressze, mar- 
gine (glumarum dorso) rhachin spectantes, rhachilla inter flores articulata, floribus her- 
is v. summo imperfect. Glum:e rigidee, 5-7-nerves, dorso rotundatze, ecarinatze, 
obtusce acute acumine v. WE nervis superne conniventibus v. in aristam con- 
f it infima sp terali et 2 inferiores spiculee terminalis vacuse, 
florentibus longiores, angustz ; florentes breves, latiuscule, imbricatze ; palea gluma 
parum brevior, angusta, 2-carinata. Stamina 3. Styli distincti, Vivam stigmatibus 
plumosis. Caryopsis oblonga, glabra, pales siccitate adhserens.—Gramina annua v. 
perennia, foliis planis. Spica terminalis, sepius elongata, aree alternatim dissitis 
erectis, rhachi ad nodos interdum articulata. 
Species apud auctores nonnullos ultra 20, ab aliis melius ad 2 v. 3 reductz, in Europa, Africa 
boreali et, Asia temperata indigens, in variis regionibus Americz, Africze et, Australie inquilinze. 
Beauv. Agrostogr. 102, 1. 20, f. 3. — Kunth, Enum. Pl. i. 430; Hev. Gram. 1.9220. — Schreb, Beschr. 
Grüs. t. 36, 37. Host, Gram. Austr. i. t. 20, 26, iii, 2. 25. — Reichb. Ic. Fl. Germ. t. 4 ad 6. Nees, 
Gen. FI. Geri. Monocot. i.n. 78. — Vis. Fl. Dalmat. t. 3. . Dell in Mart, Fl. Bras. ii, iii. 7. 68. 
Genus Festuce (Catapodio) potius quam 4gropyro affine, ab omnibus spieularum quoad rhachin 
directione facile differt. De Rouville (Monogr. Lol, Montpellier, 1853, eum tabb. 3) species 
auetorum priorum rejecit et stirpes primarias 3 agnovit charaeteribus novis definitas et diae 
novis signatas, 
Cxxpauia, Schrank, Bair. Fl. i. 102, 382, est. L. temulentum, Linn., eui gluma seeunda etiam in 
spiculis lateralibus sepe vacua ceteris minor. 
AurTHROocHORTUS, Lowe in Hook. Kew Journ. viii. 801, est Lolii species v. varietas insignis, L, rigido, 
Gaud. ( L. stricto, Presl), et, varietatibus nonnullis Z. emulenti, Linn., valde affinis. 
266. Agropyrum, J. G«rtn. ex Beawv. Agrostogr. 101, t. 20, f. 1, 2. (Elytrigia, Desv. 
in (Nouv. Bull. Soc. Philom. ii. (1810) 190; et in Journ. Bot. i. (1813), 74.)—Spiculee 
co-florze, compressze, in spica simplici ad excavationes rhacheos sessiles, alternze, distichee, 
compressze, facie (glumarum latere) rhachin spectantes v. obliquee, rhachilla inter flores 
sepius articulata, floribus hermaphroditis. v. summo imperfecto. Glum:e 2 inferiores 
vacuze, fl tiores, nervis p ibus ; florentes rigid:e, dorso rotundatee, vix 
v. non carinatz, b-T-nerves; vallas ;acuminateo v. in aristam products, nervis apice 
conniventibus v. in aristam confluentibus, summa minor sepe vaeua v. florem imper- 
fectum fovens ; palea gluma parum brevior, 2-carinata, carinis ssepius ciliatis. Stamina3. 
