1116 CC. GRAMINE, [Oryzec. 
In specie typieà L. peruviana, Juss.; Beaur. Agrostogr. 136, t. 24, f. 1; Doll in Mart. Fl. Bras. 
t. 5 (L. brasiliensi, Morie. Pl. Nouv. Amer. 94, t. 60), ut in L. alabamense, Chapm. Fl. S. Un. Stat. 
584, et in specie inedita Guianensi, panieule d et 9 in caulibus seu ramis distinctis omnes terminales. 
In L. Spruceana, Benth., Dcell in Mart, Fl. Bras. ii. ii. 18, cui referenda videtur L. gperuviana, Mey., 
Prim. Fl. Esseq. 269, t. 2, non Juss., ut in speciminibus nonnullis a Selloio in Brasilia australi lectis 
ex Herb. Reg. Berol. sub nomine Z. peruviane distributi panieule d terminales, 9 axillares in 
eodem caule seu ramo, quales etiam dicuntur in L. longivalvi, Doell,l.c., a nobis non visa. In 
OanxocuroA, Trin. Gram. Panic. Diss. ii. 54 et 248, Doll l. c. t. 4 (Annozia, Schrad. ; Kunth, Enum. 
PI. i. 11), specie brasiliensi, spieulee d et 9 in eadem panieula mixte, d tamen in ramulis seu in 
pani terminaliL inferiorik Ch exteri omnino Luziole. Stamina semper 6 
videntur, quod sspe in aliis speciebus Luziole observatur. 
42, Potamophila, FR. Br. Prod. 211. (Maltebrunia, Kunth, Rev. Gram. i. 183, t. 3.) 
—PSpicule anguste, subteretes, l-fore, secus ramos inarticulatos panicule articulatze 
breviter pedicellatz, flore her phrodito v. abortu unisexuali. Glum:e 4, 2 exteriores 
minim:e setiformes v. acuminatz, 2 interiores sub. quales, b , concavs v. 
convolutze, muticee, quarum exterior vacua, interior florens angustior vix brevior ; palea 0. 
Stamina 6. Styli breves, a basi distincti, stigmatibus plumosis. Caryopsis angusta, 
glumis rigidule membranaceis nec induratis arcte inclusa.— Gramina aquatica, elata, foliis 
planis v. siccitate convolutis. Panicula terminalis, nunc longissima stricta, nune brevior 
effusa, ramis filiformibus ramulosis. 
Species 3, una Australie, altera Madagasearis, tertia Africze australis, incole. 
In specie typica Brownii, Ben?h. FI. Austral. vii. 550, Kunth, Rev. Gram. t. 5, Trin. Spec. Gram. 
*. 249, spieube plereque nee omnes unisexuales sed pistillum sterile in masculis, staminodia in 
fcmmineis semper adesse videntur, nisi hine inde spiculze omnino vaeux, folia longa siccitate convoluta 
et panieula longissima spieulis. parvulis. In P. leersioide (Maltebrunia, Kunth), e Madagascaria, a 
nobis non visa, spieulte ex ic. et descr. omnes hermaphrodit:e, folia plana, supra vaginam petiolata, 
panieula ezterique characteres omnino P. parviftore, Br. In specie Capensi P. prehensilà (Malte- 
brunia, Nees, Gram. Fl. Afr. Austr. 194) spieulie majores compressiuseule, plereque perfecte her- 
maphroditee, folia plana in vagina sessilia et panicula brevior laxe effusa. Genus tamen in integrum 
servatum naturale est Orjza;; eum Zizania connectens, Kunth preterea Potamophilam a Malte- 
brunia distinxit spieulis 2-floris, florem alterum tamen in speciminibus a nobis visis frustra quzesi- 
vimus, nec a Brownio commemoratur, et spicule quales in ieone Kunthii l.c. t.'5, f. 1, 2 0t 6 
delineantur verisimiliter rarz et. abnormes erant, nos nunquam invenimus. 
43. Hygroryza, Nees in Edinb. N. Phil. Jowrn. xv. 380. (Potamochloa, Griff. in 
Journ. Asiat. Soc. Beng. v. 571, t. 22; Ic. Pl. As. t. 140.) —Spicule anguste, vix com- 
pressz, 1-flor;e, secus ramos inarticulatos paniculie subsessilis articulatze, flore hermaphro- 
dito. Glumze 2, basi nudo, membranace:e, exterior latior, in aristam tenuam producta, 
marginibus carinaque ciliatis interi florent parum breviorem ist 
amplectens; palea 0. Stamina 6. Styli in ovarii apice contracto distincti, breves, 
stigmatibus pilis ramosis plumosis. Caryopsis anguste oblonga, glumis membranaceis 
inclusa, libera.—Gramen aquaticum, natans v. repens, ramosum, foliis brevibus latiusculis 
planis obtusis. Panicula terminalis, brevis, ramulis brevibus fasciculatis. Spicule paucs, 
ratione inflorescentize magn. 
Species 1, Indis orientalis incola, 
44. Oryza, Linn. Gen. m. 448, (Padia, Zoll. et Mor. Vers. Pl. Zoll. 103.)—Spiculze 
plano-compress:e, 1-florze, secus ramos inarticulat panicule articulat » sessiles v. breviter 
pedicellatz, flore hermaphrodito. Glum:e 4, 2 exteriores minime, squamiformes v. seti- 
formes, 2 superi: plicat inatz, rigidulee, exterior paullo major, vacua, aristata 
v. mutica, carina sepius anguste alata v. muricata, interior florens vix brevior, angustior, 
arista breviore v. 0, carina nuda; palea 0. Stamina 6. Styli breves, vix basi connati, 
stigmatibus pilis ramosis plumosis. Caryopsis oblonga v. angusta, glumis parum induratis 
basique spe subeonnatis arcte inclusa, libera.— Gramina paludosa, elatiuscula, foliis 
