T R 1 



three bridges. But Mr. Hordey fuppofes it to have been 

 fituated where the town of Rugby now ftands. 



TRIPOOR, in Geography, a town of Hindooftan, in 

 Myfore ; Z^ miles N.E. of Coimbetore. 



TRIPPING, in Heraldry, denotes the quick motion of 

 all forts of deer, and of fome other creatures, reprefented 

 with one foot up, as it were, on a trot. 



In fpeaking of lions, they fay pajfant, inftead of tripping. 



Tripping, in Sea Language, denotes the movement by 

 which an anchor is loofened from the bottom by its cable or 

 buoy-ropes. See Atrip. 



TRIPSACUM, in Botany, was fo named by Linnasus, 

 from Tfi4^i-, a rubbing, or grinding ; but whether in allufion 

 to the grain being ufeful for making flour, or, as we are 

 rather inclined to fufpeft, to the fmooth poliflied afpeft of 



the glumes, is not explained Linn. Gen. 481. Schreb. 622. 



Waid. Sp. PI. V. 4. 201. Mart. Mill. Diet. v. 4. Ait. 

 Hort. Kew. V. 5. 236. Purfli 88. JulT. 30. Lamarck 



lUuflr. t. 750. Gjertn. t. I Clafs and order, Monoecia 



Triandria. Nat. Ord. Gramina. 



Gen. Ch. ccrrefted by Schreber. Male flowers in pairs, 

 unilateral, alternate, moftly in the upper part of the fpike. 

 Cal. Glume two-flowered ; the outer floret male ; inner 

 neuter ; each of two valves : outer valve lanceolate, flattifli, 

 obtufe, awnlefs, cartilaginous, thinner at the edges ; em- 

 bracing the inner valve, which is oblong, triangular, keeled, 

 acute, about the fame length. Cor. in each floret of two 

 nearly equal valves, membranous, very thin, awnlefs, fmaller 

 than the calyx ; the outer valve ovate, boat -like, bluntifli ; 

 inner lanceolate, cloven at the end. Neftary of two minute, 

 triangular, flefliy, convex, abrupt valves, pointed at each 

 end, thinneft at the upper margin, notched in the middle. 

 Stam. in the outer floret, Filaments three, capillary, longer 

 than the calyx ; anthers parallelepipedal : in the inner. 

 Filaments three, very {lender, fomewhat combined ; anthers 

 none. 



Female flowers in the lower part of the fame fpike, 

 alternately funk in the common ftalk, at each fide. Cal. 

 Involucrum ovate, cartilaginous, very thick, tumid below, 

 poliflied ; obfcurcly bordered at each fide externally ; blunt 

 and fomewhat emarginate at the end ; embracing the inner 

 glumes with its thinner margin. Glume of two valves ; the 

 outermofl: oblong, tumid, taper-pointed, thickifli, doubled ; 

 inner fimilar, but rather blunt. Cor. of two valves, fmal'er 

 and thinner than the calyx ; the outer valve largeft, tumid, 

 bluntly three-toothed ; inner rather fmaller, flat at tlie back, 

 emarginate. Abortive glume of one valve, oblong, folded 

 in at each margin, furnilhed with two teeth, and fituated at 

 the fore-fide of the fertile floret, to which it is much infe- 

 rior in fize. Neftary minute, of two linear, membranous, 

 very thin fcales, acutely notched at the fummit. Stam. Fila- 

 ments three, minute, at the bafe of the germen, capillary, 

 dilated below ; anthers linear, minute, imperfeft. Pijl. 

 Gfermen fuperior, oblong ; ftyle one, comprefled, longer 

 than the calyx ; ft:igmas two, very long, villous, twifted. 

 Per::, none. Seed folitary, ovate, a httle comprefled, 

 pointed with the permanent ftyle. 



Obf. At the bafe of the involucrum, at each fide, is an 

 opening, lined internally, on one fide, with briftly hairs. 



EiT. Ch. Male, Calyx a glume of two flowers, the in- 

 nermoft: neuter. Corolla of two membranous valves. 



Female, Calyx a fingle-flowered glume, enclofed in a 

 fingle-leaved involucrum, pierced at each fide. Corolla of 

 two valves. Stigmas two. Seed one. 



1. T. daayloides. Rough-feeded Tripfacum. Linn. 

 Sp. PI. 1378. WiUd. n. I. Ait. n. I. Purfli n. i. 

 Mill. lUuftr. t. 78. (Coix feminibus angulatis; Linn. 

 Vol. XXXVI. 



T R I 



Holt. Cliff. 438. Gramen daftylon maximum amcricanum ; 

 Pluk. Phyt. t. igo. f. 2. G. daftylon indicum efculentum, 

 fpica articulata ; Ambrofin. Phyt. 546, 547, rude, but 

 expreffive. Sefamo perenne indiano, pianta frumentacea ; 

 Zanon. Ift. 181. t. 69, not 68.) — Spikes aggregate, about 

 three together, male in the upper part, female at the bafe. — 

 On the banks of rivers, and along the fea-fliore, in Virginia, 

 Carolina, and the country of the Illinois, flowering in Auguft. 

 Purjli. Root perennial, thick and woody, with many ftrong 

 zigzag fibres. Stems numerous, ereft, reedy, four or five 

 feet high, round, fmooth, as thick as a goofe-quill, knotty ; 

 leafy below. Leaves long, linear, taper-pointed, an inch 

 broad, fmooth. Spikes a fp?n long, fmooth, ufually three 

 together, often more or fewer ; the male jlotvers very 

 numerous. 



T. monojlacbyon, Willd. n. 2. Hort. Berolin. t. i, found 

 in fait meadows and ditches, from New York to Carolina, 

 feems, as Purfli remarks, to be but a fingle-fpiked variety of 

 the former ; probably fuch as is reprefented by Miller above 

 cited. 



2. T. cylindricum. Cylindrical Tripfacum. Michaux 

 Boreal. -Amer. v. i. 60. Willd. n. 3. Purfli n. 3 — 

 " Spike folitary, hermaphrodite, cylindrical. Spikelets 

 contiguous, feparating by joints." — Found in fandy fields 

 in Florida. Michaux. 



3. T. hermaphroditum. United-flowered Tripfacum. 

 Linn. Sp. PI. 1379. Willd. n. 4. Ait. n. 2. Linn. fil. 

 Dec. 17. t. 9. (Cenchrus n. 2 ; Browne Jam. 367.) — 

 Spike folitary, tapering, with a wavy ftalk, and rather 



diftant fpikelets Native of grafl'y paftures in Jamaica, 



where it is fed on by all forts of cattle. The root is an- 

 nual, fibrous. Stem from eighteen to twenty-four inches high, 

 leafy, fmooth. Leaves pointed, fomewhat rough-edged. 

 Spike tapering, pale, fmooth. Sinus at each fide of the 

 involucrum deftitute of internal hairs, but accompanied by a 

 fort of blunt fliort fpur. 



TRIPTERELLA, a diminutive from Tfi.-, three, and 

 ffTpoy, a luing, ufed by Michaux to exprefs the charafter of 

 the three little narrow wings, projefting from the «ngles of 

 the calyx, or rather corolla ; not, as De Theis fays, of the 

 capfiile. — Michaux Boreal. -Amer. v. i. 19. Vahl Enum- 

 V. 2. 42. Purfli 28. — Clafs and order, Triandria Monogynia. 

 Nat. Ord. akin to Burmannia, and perhaps Hypoxis ; genera 

 whofe place in Juflieu's fyfteni is not well fettled. 



Gen. Ch. Cal. none, unlefs the corolla be taken for 

 fuch. Cor. of one petal, permanent, fuperior ; tube fwclU 

 ing at the bafe, contrafted ia the middl", angular, with three 

 fli|ht wings, at the fummit 5 limb fliortcr than the tube, in 

 fiiT deep fegments, the three intermediate ones minute. 

 Slam. Filaments three, very fliort, inferted into tl.e tube 

 below the three fmaller fegments of the limb ; anthers within 

 the tube, of two widely feparated lobes. PiJl. Germen in- 

 ferior ; ftyle the length of the ftamens, triangular ; ftigma 

 in three fliort, thickifli, blunt fegments. Peric. CapfiUe 

 membranous, triangular, of three cells, crowned with the 

 withered corolla. Seeds numerous, minute, oblong, cyhn- 

 drical, ftriated. , 



Efl". Ch. Calyx none. Corolla fuperior, of one petal ; 

 its tube angular, fweUing at the bafe ; limb in fix L-gments, 

 the three intermediate ones minute. Capfule of three cells, 

 with many feeds. 



I. T. capitata. Capitate Tripterella. Michaux .3. 

 Vahl n. I. Purfli n. I. (Anonymos capit^M ; Walt. 

 Carol. 69. Vogclia capitata ; Gmel. Syft. Nat. v. 2. 

 107.)— In wet places, borders of ponds,, &c. in Lowa 

 Carolina, flowering from May to July. Purjh. F°""d ^ 

 Richard in Cayenne. Vahl. Root fmall, fibrous, ann^ual. 



