1206 €C. GRAMINELE. [Hordeec. 
273. Oropetium, Trin. PFundam. Agrostogr. 98, t. 3.—Spicule 1-florse, in spica sim- 
plici ad excavationes rhacheos solitariw, sessiles, rhachilla brevissima supra glumas 
inferiores articulata, sub flore longe pilosa, ultra florem in stipitem minutum producta, 
flore hermaphrodito. Glumze 2 inferiores vacus, extima rhachin versus parva membra- 
nacea, secunda rigida, lineari-lanceolata, acuta; florens paullo brevior, membranaceo- 
hyalina, latiuscula, carinata; palea angusta, 2-nervis. Stamina 3. Styli distincti, 
stigmatibus brevibus plumosis. Caryopsis oblonga, gluma paleaque inclusa, libera.— 
Gramen nanum, dense multicaule, foliis brevibus subulatis. Spica tenuis, spiculis parvis 
distiche immersis subteres, rhachi sub-4-gona leviter flexuosa. 
Species 1, Indis orientalis incola, —Kuwnfh, Exwm.i. 463. Hoxb. Corom. Pl. 1.132 (Hottboellia). 
274. ordeum, Linn. Gen. n. 98.—Spicule 1-forz, in spica simplici ad nodos v. ex- 
€avationes rhacheos 2-3-nre, collateraliter sessiles v. brevissime stipitatz, rhachilla brevi 
supra glumas inferiores articulata, ulira florem in setam longam tenuem v. superne in 
glumam angustissimam dilatatam producta, floribus hermaphroditis v. spicularum latera- 
lium imperfectis. Glum:e 2 inferiores vacure, subulato v. angustissime lineares, rigide, 
persistentes, spicularum omnium cujusve nodi subexternze involucrum simulantes ; florens 
I lat tundat inata, superne O-nervis, in aristam rectam v. diver- 
, dorso " 
gentem desinens ; palea gluma parum brevior, 2-carinata. Stamina 3. Styli brevissimi, 
distincti. Caryopsis ovoideo-oblonga v. angusta, apice breviter villosa, antice sulcata, 
pales siecitate adhsrens v. rarius libera.—Gramina erecta, annua v. rarius perennia, 
foliis planis. Spica cylindracea, ssepius densa, glumarum aristis elongatis obtecta, v. 
rarius tenuior aristis ad setas breves reductis. 
Species spontanere ad 12, Europe, Africwe borealis, Asiz temperat: et Americae extratropicz tum 
australis quam borealis incole. : : 
Deaur. (Agrostogr. 114, t. 21, f. 1) genus HonpzUx restrinxit ad. ZI. vulgare, Linn., formasque 
affines diu cultas quibus spieulze laterales haud raro fertiles evadunt. Host, Gram. Austr. iii, t, 34 
«d 37. Inter illas Cgrruo, E, Mey. Ind. Sem. Hort. Regiomont. 1848, ez Ann. Sc. Nat. ser. 3, xi. 263, 
et Linnca, xxiv. 195 (H. «giceras, Royle, Illustr, Fl. Himal, t. 97, Hensl. in Hook. Kew Journ. i, t. 2, 
3), insignis est glumis florentibus latis apice 3-fidis lobis lateralibus divaricat versis, int li 
1s, 
majore apice eueullato. Species spontaneze in sectiones sequentes distribuuntur:— 
l. Zeocriton. Spiculee sepissime ternte, centrali sola perfecte fertili, lateralibus (sepius breviter 
stipitatis) sterilibus v. ad glumas vacuas reduetis, Schreb. Beschr. Grüs. t. 17. Host, Gram. Austr. 
i.t. 82 ad 34 ; iii. 4, 31 ad 33; iv. . 19... Reichb. Ie. Fl. Germ. t. 11, 19. Nees, Gen. Fl. Germ. 
Cnrrnorsis, Jaub. e£ Spach, Ill. Pl. Or. iv. 30, £. 321. 
3. Cuviera. Spicule smpissime ternz, omnes fertiles, Species. unica, Z. sylvaticum, Huds. 
(Elymus europeus, Linn.; Host, Gram. Austr. i. t. 28; Reichb. Ie. Fl. Germ. t. 9; Nees, Gen. Fl. 
Germ. Monocot, i. n. 82). CvreRa, Kol. Gram, Gall. et Germ. 398. 
275. ziymus, Linn. Gen. n. 96. —Spicule 2-6-forw, in spica simplici ad nodos plus 
minus excavatos rhacheos 2-6-nse, collateraliter sessiles, rhachilla sub floribus articulata, 
floribus hermaphroditis v. summo sepius imperfecto v. ad glumam vaeuam reducto. 
Glum:e 2 inferiores vacu:e,. rigid:e, anguste lineares, 1-3-nerves, in aristam brevem 
productze v. szepius aristiformes, persistentes, spicularum omnium cujusve nodi subexterni 
involucrum simulantes, rarius in aristas plures divise ; florentes breviores, oblongze v. 
l latz, dorso rotundat:e, inatz, D-nerves, obtuse v. acute, mutics v. in aristam 
desinentes ; palea gluma parum brevior, 2-carinata. Stamima 3. Styli brevissimi, 
distincti, stigmatibus plumosis. Caryopsis oblonga, apice parce villosa, antice sulcata 
