1114 CC. GRAMINEJE. [Maydec. 
$ articulata. Spieule d secus rhachin geminse, subpatentes. Glums 4, 2 exteriores 
tenuiter coriacez v. rigidulee vacu:e, 2 interiores paullo breviores, tenuiores, ssepius 
hyalins, paleam hyalinam floremque foventes. Stamina 3. Pistili rudimentum 0. 
Spieulie 9 in excavationibus rhacheos erassse solitarire, sessiles, arete appresse. Glumse4, 
latw, eoncavs, exterior coriacea demum indurata, secunda tenuior, rigidula, pariter vacua, 
2 interiores cum paleis inclusis tenuiter hyalinze, tertia ezeterum vacua ; terminalis florem 
9 fovens. Staminodia 0. Styli basi brevissime connati, longissime exserti, filif ) 
pilis brevibus dense papilloso-pubescentibus. Caryopsis intra glumam exteriorem indu- 
ratam lapideam et rhacheos internodium crassum arcte inclusa, libera.—Gramina valida, 
elatiuscula, foliis longe subulato-acuminatis. Pedunculi in axillis superioribus solitarii v. 
gemini, apice spicas sepius 2-3 rarius 4-oo v. unam solam, erectas strietas sibimet arcte 
applicitas ferentes, spics parte superiore mascula floribunda rhachi inarticulata, parte 
inferiore foeminea demum in articulos monospermos solvenda. 
Species 3, quarum 2 ab auctoribus nonnullis pro unius varietatibus habite, in America calidiore à 
Brasilia usque ad Mexicum et Texas extensee, tertia (T. fasciculata, Trin.) differt spicis in panicula 
terminali numerosis, plerisque maseulis paucis basi tantum breviter feemineis, —Beauv. Agrostogr. 
118,7. 22, f. 1. Kunth, Enum. Pl, i. 468. — Steud. Syn. Pl. Glum. i. 362. Lam. Illustr. t. 150, f. 1. 
Willd. Hort. Berol, t. 1. Fourn. Grain. Mez, 68. 
97. Euehleena, Schrad. Ind. Sem. Hort. Gott. 1839, ex Limnnea, viii. Littbl. 9. 
(Reana, Brign. Ind. Sem. Hort. Modena, 1850, ex Flora, 1850, 400.)—Spicule unisexuales, 
monoiez, maseule in panieula terminali ad dentes alternos spicarum gemin:e, 2-florze, 
fcemine:e in spicis axillaribus fasciculatis foli bracteatis l-seriatz, 1-flore. Spicule 4 
in quoque pari inzequaliter pedicellatz. | Glum:e 4, acute, 2 exteriores majores, membra- 
naces, vacus, 2 interiores florentes cum paleis inclusis hyalins. Stamina 3. Pistilli 
rudimentum 0. $Spicule 9 ad dentes alternos rhacheos sessiles, solitaris, ob. rhachin 
flexuosam quasi superpositze. Glum:e 4, extima latissima, fere cymbiformis, lzevis, mox 
indurata, interiores et rhachin angustam amplectens, secunda pariter vacua, coriacea at 
minus dura, tertia hyalina, paleam fovens, czeterum vacua ; terminalis sola florens eum 
palea inclusa hyalina. Staminodia 0. Stylus longissime filiformis, apice breviter 2-fidus, 
papillis sti parum p Caryopsis intra glumam cum internodio rhacheos 
lapideam arcte inclusa, libera.— Gramina elata, foliis elongatis. Panieula terminalis é 
dense floribunda Maydis, spicarum seu ramulorum simplicium rhachi inarticulata. Spicre 9 
intra vaginas foliorum fasciculatz, singule bractea paleacea ampla semi-inclussee more 
Polytoce et Chionachnis, vhachi cujusve articuli angustissi cum inibus glum:e 
mox connata, supra glumam abrupte uncinato-refracta, articulum superiorem specie 
dorsalem ferens. 
Species 2, Mexicanz, quarum Z. luzurians sola nobis nota. — Fournier in Bull. Soc. Bot. Belg. xv. 
467. Gram. Mex, 69. Bot. Mag. t. 6414. E. Bourgei, Fourn. |. c, 468, ad specimen maseulum a 
nobis non visum descripta adhue quodammodo dubia est. Reana Giovaninni, Brigu., est. evidenter 
eadem ae E. mezicana, spiculis pro floribus descriptis. : 
98. Zea, Linn. Gen. n. 1042. (Mays, Gwrtn. Fruct. i. 6, t. 1.)—Spicule unisexuales, 
monoicz, maseule in panicula terminali ad dentes alternos spicarum gemin:e, 2-florze, 
foemine:e in spica axillari maxima vaginis paleaceis amplis involuta densissime confertee, 
longitudinaliter oo-seriatz, 1l-flore. Spicule d in quoque pari breviter inzequaliterque 
T. VU oae 
pedicellatze v. una sessilis. — Glum:e 4, acutze, 2 ext majores, n , Vàcum, 
Zinteriores florentes cum paleis inclusis hyalins. Stamina 3. Pistilli rudimentum 0. 
Spicule 9 arcte sessiles, in seriebus longitudinalibus densissime imbri , rhachi crassa 
subspongiosa inarticulata. Glum:e4, omnes membranace:e, hyalinze v. rarius subherbace:e, 
breves, latissimz, obtuse v. 'gi lobs ; 2 exteri vacu:e interd i 
tertia hyalina paleam brevem sspe fovens, terminalis florens hyalina, ssepe 2-fida, palea 
pariterlatased indivisa. Staminodia0. Stylus longissi filiformis, apice breviter 2-fidus, 
papillis stigmatosis brevissimis. Caryopsis subglobosa, dura, glumis paleisque emarcidis 
semitecta v. basi stipata, ceterum nuda v. in una varietate glumis acutis subherbaceis 
