1190 CC. GRAMINEZE. [Festucec. 
CuoxpmAcuynuM, Nees in Lindl. Introd. Nat. Syst. ed. 2, 449, species Brasiliensis a nobis non 
visa, ex descriptione characteres omnino Melice ostendit, et nescimus qua ratione auctor dicit * vera. 
indole proprius aecedere videtur Paniceis; a quibus floribus 2 perfectis cum. gluma summa vacua 
claviformi longissime recedit. 
938. Diarrhena (Diarina), afin. in Journ. Phys.lxxxix. 104. (Korycarpus, Zea in 
Act. Matr. 1800, ex Lag. Elench. Hort. Matr. Nov. Gen. et Sp. 4. Corycarpus, Zea, ex 
Kwnth. Roemeria, Zea in Rem. et Schult. Syst. i. 61, 287.)—Spiculw co- (3-5-)florz, 
paniculate, rhachilla inter flores articulata fragillima, ultra flores producta glumifera, 
floribus hermaphroditis. Glum:ze 2 inferiores vacuw, infima angusta, acuta, sepius 
l-nervis, secunda major, latior, carinata, 5-nervis, acuminata v. mucronata; florentes 
latiores, i v. te, dorso rotundae, demum coriacere nitidzeque, 3-nerves; 
summ:e 2-4 gradatim angustiores, vacus, semet involventes ; palea tenuis, latiuscula, 
2-carinata. Stamina 2, rarius 1. Styli breves, distincti, stigmatibus plumosis. Caryopsis 
oblique ovoidea, crassa, a latere compressiuscula, paleam glumamque sepe superans, 
pericarpio membranaceo apice supra semen i t G 1 erectum, elati lum, 
foliis longis planis. Panicula elongata, angusta, stricta, ramulis paucis distantibus erectis 
paucispieulatis v. spieulwe singulze secus axin sparsm. Spicule florentes anguste fere 
lineares, glumis imbricatis, fructiferwe quasi interrupte, caryopsibus prominentibus 
insignes. 
Species 2, una boreali-Americana, altera Japoniea. .Beauv. Agrostogr. 142, (, 95, f. 2. Kunth, 
Enum. Pl.i.425. Mich. Fl. Bor. Amer, t. 10 (Festuca). Jacq. Ecl. Gram. t. 29. 
Ox«a, Fr. et Sabat. Enum. Pl. Jap. ii. 178, species a nobis non visa, ab auctoribus ipsis ibid. 603 
ad Diarrhenam refertur. 
239. Centotheca, Desv. in Nouv. Bull. Soc. Philom. ii. (1810), 189, et in Journ. Bot. i. 
(1813), 70.— Spicul:e co-florze, ample paniculatze, rhachilla supra glumas inferiores tardius 
articulata longiuscula glabra, supra flores stipitiformi ; floribus her Glume 
menbranaceo-herbaceze, 2 inferiores vacu:e, carinatze, acutze, 3-D-nerves, parum incequales; 
florentes paullo majores, dorso rotundatz, 5-7-nerves, acutz v. mucronatse, exaristats, 
superne dorso setis reversis e tuberculo oriundis echinats v. nudz, summa interdum ad 
apicem stipitis parva vaeua ; palea gluma vix brevior, prominenter 2-nervis v. 2-carinata. 
Stamina 3. Styli distincti, stigmatibus plumosis. Caryopsis oblonga, crassiuscula, 
subteres, gluma paleaque laxe inclusa, libera.—Gramina elata, erecta, foliis planis lanceo- 
latis inter venas transverse venulosis, Panieula terminalis, ramis longiusculis parum 
ramulosis erectis v. demum patentibus, spiculis breviter pedicellatis. 
hrodi 
Species 2 v. 3, Africe et Asize tropiez et insularum maris Pacifiei incolw. Kunth, Enum. Pl. i. 
366 ; Rev. Gram. t. 70. Beauv. Agrostogr. 69,1. 14, . 7. Trin. Spec. Gram. t. 298 (Uniola).. Griff. 
Jc. Pl. Asiat. t. 152. 
Icones supra citat:e speciem referunt typicam spieulis 2-4-floris, glumis nonnullis Stepissime setis 
reversis echinatis. Illi tamen congener videtur Doa suucronata, Beauv. Fl. Ow. et Ben. i. 5, t. 4, 
spieulis co-floris, glumis nudis, quie species typica MxaAsTACHY E, Deauv. Agrostogr. t. 10, f. 5, a 
cieteris speciebus ei adjunctis pluribus notis diserepans. 
240. Orthoclada, Beau. Agrostogr. 69, t. 14, f. 9.—Spicul:e 1-2-florze, laxe paniculatze, 
rhachilla continua inter flores longi la, floribus hermaphroditis v. unisexualibus. 
Glumse carinatz, rigidule b , 2 inf vacum, acute, extima sepius 
3-nervis, secunda paullo major 5-nervis ; florentes paullo majores, acutz v. mucronulatze, 
D-7-nerves, v. summa minor vacua; palea gluma vix brevior, prominenter 2-nervis 
v. 2-carinata. Stamina 2-9. Styli distincti, stigmatibus longiusculis plumosis. Cary- 
opsis oblique oblonga, erassa, a latere compressiuseula, gluma paleaque arcte inclusa, 
libera.—Gramen erectum, validum, foliis planis petiolatis ample 1 latis inter venas 
iransverse venulosis. Panicula ampla, ramis numerosis longis tenuibus secus rhachin 
fasciculatis ramulosis, primum erectis confertis demum late patentibus. Spicule in quo- 
que ramulo paucze, pedicellis capillaribus. 
