GRAMINEÆ
Diagraphis arundinacea, P. de B.
Hierochloa fragrans, Kunth. In nostro specimine glumæ flosculos adæquant; flosculi masculi circa apicem pubescentes.
Stipa capillata, Lin.
Sesleria dactyloides, Nutt. Deserves to form a distinct species, which belongs to the Chlorideæ, and from the habit should be placed next to Chondrosium. Two peduncles mostly come out of the upper sheath; some leaves are biennial. The unilateral spikes are hardly half an inch long, oval, and often tinged with violet on the back. The lower valve of the calyx turned to the rhachis is more than twice as small as the upper. I always found only two flowers; the upper one stalked; both similarly formed, with triple-nerved lower valve, which terminates in a short point; the upper valve is ciliated. The scales are smooth, nearly quadrate, obtusely crenated. Three stamina with yellow anthers. In many flowers the pistil is entirely wanting, and the plant is perhaps diœcious.
Our Sesleria may be compared, though only remotely, with S. disticha.
Chondrosium oligostachyum, N. ab E. spica solitaria binisve rectiusculis, spiculis subtrifloris, flosculis binis superioribus stipitatis sterilibus, inferiori sessili villoso, supremo cucullato mutico univalvi, secundo parvo bivalvi setis tribus ad basin stipato, culmo geniculato simpliciæ lævi, foliis linearibus, ore vaginarum puberulo.
Atheropogon oligostachyus, Nutt. Gen. et Spec. I. p. 78; Torr. in. Ann. Lyc. Noveborac. II. p. 254, n. 476.
Eutriana oligostachya, Kunth. En. I. p. 282, n. 12.
Cum Chondrosiis magis quam cum Eutrianis congruit, neque spicæ omnino rectæ. Rhachis dorso convexa. Spicæ circiter pollicares, vel singula adjecto mucronulo, vel duæ et tum una terminalis. Spiculæ arcte imbricatæ. Glumæ lanceolatæ, glabræ aut pilosulæ, uninerves, inferior duplo minor. Flosculi fertilis valvula inferior lanceolata ex utroque latere medio setam promit valvula paulo breviorem, non ex ipso margine provenientem sed ex nervo laterali; infra apicem bidentem valvulæ seta brevis et rigida. Pedicellus flosculorum sterilium infra flosculos barba annulari cinctus. Flosculus horum inferior parvus, ovalis, obtusus, muticus, glaber, setis ad basin una laterali et una utriusque lateris rectis æqualibus linea paulo longioribus divergentibus. Tertii flosculi valvula sursum cucullata, truncata, mutica.—Culmus 1½-1 ped. longus, teres, glaber ad genicula infractus. Vaginæ internodiis breviores. Ligula brevissima, denticulata. Folia 2-1 poll. longa, lin. 1 lata, linearia, acuminata, subtus convexa, supra concava, lævia, glauca, glabra, circa basin subtilissime puberula.
Spartina patens, Mühlenb. spicis (4-8) alternatim secundis brevibus adpressis, rhachi hispidula, glumis dorso setoso-hirsutis, superiori flosculum æquante brevi-mucronata, inferiori duplo minore setaceo-acuminata foliis culmo brevioribus patentibus in apicem fere filiformem attenuatis culmoque glabris.
Spartina patens, Mühlenb. Descr. n. 6, p. 55; Schult. Mant. Syst. Veg. II. p. 150, n. 6, a. Kunth. En. 1, p. 279, n. 12.—Dactylis patens, Act. Hort. Kew. ed. 2, p. 160; R. et Sch. S. Veg. II., p. 632, n. 19.—Trachynotia patens, Poir. Enc. meth. Suppl. II. p. 443.
Species distinctissima foliis arcu patentibus 5-7 poll, longis, ad basin 2 lin. latis, in apicem filiformem attenuatis subconvolutis, inferioribus disticho-approximatis, superioribus distantibus.—Culmus 1-1½ pedes altus, in nostris tortus. Spicæ partiales subpollicares; arcte contiguæ. Spiculæ haud pedicellatæ sed callo brevi insertæ, oblongæ, 3 lin. longæ. Gluma superior altero latere ad carinam trinervis, ex apice obtuso brevissime mucronulata, secundum carinam setis patulis mollibus densis ciliata; inferior subbinervis, apice attenuata, carina laxius ciliata, plus duplo brevior. Valvulæ obtusæ, inferior paulo brevior, carina infra apicem ciliata. Antheræ violaceæ.
Brizopyrum spicatum.
(Uniola stricta, Torr. in Ann. Lyc. Noveborac. Sept. 1824, p. 155).—Br. siculum, β Americanum LK.—Uniola spicata, Lin. Festuca distichophylla, Pursh.
Arundinaria macrosperma, Michx.
Agropyrum repens, P. de B. Var. ε Leersianum R. et Sch. Spiculis inferioribus geminis.—Specimina nostra singularia, alta, glauca. Folia radicalia angustissima, filiformia. Spiculæ 6-8 floræ, pubescentes, glaucæ. Glumarum aristæ 1-2 lin., valvularum lin. 4-5 longæ, patentes. Gluma inferior 3—superior 5-nervis.
Elymus striatus, Willd.—Hordeum jubatum, Ait.