TRIANDRIA. MONOGYNIA. 9 



b. Corolla chaffy. 



SI. MARISCUS. Nutt. Gm. 51. 

 [Supposed from the Lat. Mare, the sea; near which some species naturally grow.] 



Cal. 2 valved; 3, to 6 or S flowered. Cor. 1 valved. Style trifid. Spikelets aggregated in heads. 



M. GLOMERATUs.' Bart. Fl. Phil. Stem triquetrous; head terminal; spikelets terete; involucre 3 or 4 leaved- 

 Synon. M. umbeliatus. PA? Scirpus cyperiformis. Muhl. &S. lupulinus. Sj)renget. secund. Baldwin. 

 Fl. Beginning of August. Fr. mat. 



Hub. Sterile "fields: Barrens: frequent. 6 to 12 inches high. 



Obs. Mr. Schweinitz says he always considered this to be the Cyperus kyllingceoides, of Pursh : and 

 the opinions of two such accurate botanical observers, as he and Dr. Baldwin, induce me to believe that 

 all these names are intended for the same plant. 



GRASSES. 

 A. Hermaphrodite, a. Calyx I floweired. ■\ Flowen scattered. 



32. MUHLENBERGIA. Nutt. Gen. 64. 



£Iii honor of the late Rev. Henry Muhlenberg, D. D. of Lancaster, Penn.; one of the most accomplished 



Botanists our country has produced.] 



Cal- 2 valved, unequal, very minute. Cor. 2 valved, hairy at base, exterior valve awned at the apex. 



M. DIFFUSA. Ell. Stem decumbent; leaves linear; panicle slender, appressed; awn as long as the glume. 



Synon. Dilepyrum minuliflorum. Mx.* Fit/go — Drop-seed grass. 



Fl. Latter end of July, and after. Fr. mat. Latter end of August. 



Hab. Woodlands, and pastures: frequent. 12 to 18 inches high. 



M ERECTA. Ell. Stem erect; leaves lanceolate; raceme terminal; awa twice as long as the glume . 



Synon. M. aristata. Persoon. Dilepyrum aristosum. 3Ix. 



Fl. Beginning of July. Fr. mat. Beginning of August. 



Hab. Woodlands, near the Brandy wine: not so common as the other. 2 to 3 feet high, 



33. TRICHODIUM. Nutt. Gen. 65. 



[Gr. Thrixy fricAos, hair, and £ta'os, form; in reference to its hairlike inflorescence.] 



Cal. 2 valved, equal, acute. Cor. 1 valved, awnless, shorter than the calyx. Panicies capillary. 



T. scABHUM.' Muhl. Stem decumbent, branches erect; sheath smooth; panicle oblong, lax; flowers racemose. 

 Synon. T. decumbens. Mx. T. perennans. Walt, in Ell. Agrostis scabra. IVilld? 

 Fl. Beginning of August, and after. Fr.mat. 



Hub. Fields, and v*'ood!ands: frequent, 1 to 2 feet high. 



Obs. I have no doubt that my specimen is the T. perennans, described by Elliott; and T think it is the T. 

 scabrum, of Mulil. It is usually about a foot and a half high isesquipedalis)— and not a " half fool," as it is 

 inad vertenily rendered, in this, and some other instances, in Fior. Philad. I am not certain tlial I have met 

 with ths T. la-iiflorum, of Michaux. 



34. LEERSIA. Nutt. Gen. 66. 



[In honor of John Daniel Leers; a German Botanist] 



Cal,. 0. Cor. 2 valvedj closed; valves compressed, boat shaped, awnless. 



* It is to be presumed that Michaux gave the above name to this plant without the knowledge that it had 

 been formally dedicated to Dr. .Muhlenberg, by Schreber. Certain it is, however, ihat^ Schreber's eiiition 

 of the Genera Plantarum had been published at least a dozen years before Michaux's Flora appeared; and 

 yet the n.ime of .Mahlenber?,ia is not noticed, evema a Synonym. Th« editor (Michaux the younger.) 

 inercly remarks, in his preface, that he has Aeord some of the plants, enumerated in the Flora Bovf^ah- 

 Americana, had recently been given to the public under different names. A like injustice occurs m the 

 same work, in relation to our worthy countryman, Marshall; in the appropriation of the genus MAKsHAU.i.i. 

 to Dr. Persoon. But Persoon had in the mean time been complimented \vith another family of j lants 

 which, it seems, he preferred: and so, when he published his Synopsis, instead of restoring our Mai shal- 

 lia to its rightful owner, he reiterated the offence in a still more glaring manner, by tiaiisterrmg the genus 

 to a German nf the name of Trattiiinick— notwithstanding jnctn hei-r Tratiinnick ii!<d already been provi- 

 ded for, by Willd^now! It has bnrn too much the praf-tice, in Europe, to evince such disrespect toward* 

 scientific Americans: but it is gratifying to perceive a rising disposition in our Country to resist, and to rec- 

 tify such proceedings,— and that even tiie Literati of tiie olu world have at last vouchsafed to rtcosnue 

 some of out claims to justice. 



