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TRIANGULARIS Sterni, in Anatomy, a mufcle of 

 the ribs. See Intercostales. 



Triangulaius Gertie, the d.-preflor anguli oris, a mufcle 

 of the mouth. See Deglutition. 



Triangularis Pifcis, ii. Ichthyilvgy, the name of a fea- 

 fifh of a very remarkable figure, called in Enghfh the coney- 

 fijh, of which there are two fpecies, the one having two 

 horns, the other wanting that c'larafter. 



The horned kind is ufually fix or feven fingers breadth 

 long, and about three fingers broad : the tail ends in a 

 longilh fin ; the mouth is fmiill, having twelve ftrong fer- 

 rated teeth in the upper jaw, and eight larger ones in the 

 lower; th= hi'ad rifes gbboufly from the mouth to the 

 horns, and the back is hnmped i.i the middle ; it has only 

 one fmall fiii near the tail ; its eyes are large and placed near 

 the horns ; befide the fir near the tail, it has four others ; 

 the tail be'ng one, and one more being fituated on the back, 

 and two on the belly ; it has tvo horns like cocks' fpurs, 

 growing ftrai^ht out of its forehead, and two others in a 

 contrary diretlion, out of its belly near the tail ; it has no 

 fcales, but has a hard (l<in, white on the belly, and brown 

 every wli;;re elfe, and wonderfully marked with trigonal, 

 tetragonal, pentagonal, and hexagonal figures. 



The fpecies which has no horns has a broader belly, a 

 longer tail, and is marked all over its body only with hex- 

 angular figures, and innumerable fmall tubercles : its belly 

 is yelloiviih, and the reft of its body of a greyifh or brownilh 

 yellow ; the moutli is narrow, and the teeth fmall, five in 

 the lower and eleven in the upper jaw ; the eyes are large 

 and I'ound ; it is hollow, and has very little flefh. 



Both the fpecies, whicli belong to the genus oftracion in 

 the Linnasan lyftem, are caught among the rocks, on the 

 Ihores of the ifland of Java, and are fometimes eaten by the 

 inhabitants, being firft Ikinned. Cluf. Exot. lib. ii. cap. 27. 

 Willughby's Hi'rt. PIfc. p. i;o. 



TRIANTHEMA, in Botany, fo named by Sauvages, 

 Meth. Folior. 127, from xpi , three, and avSo , a Jloiver ; 

 becaufe of the flowers being fituated three together in the 

 bofoms of the leaves. — Linn. G-^n. 214. Schreb. 300. 

 Willd. Sp. PI. V. 2. 635. Mart. Mill. Did. v. 4. Ait. 

 Hort. Kew. V. 3. 64. Juir. J14. Lamarck lUuftr. t. 375. 

 Gscrtn. t. 128. — Clafs and order, Decandria Digynia. Nat. 

 Ord. SuccuLntit, Linn. Portulac:<t, JulT. 



Gen. Ch. Cal. Perianth half-inferior, of five oblong 

 leaves, internally coloured, pointed below the fummit, per- 

 manent. Cor. none, except the calyx, which partakes of 

 the nature of both parts, be confidered as fuch. Stam. 

 Filaments about ten, (from five to twelve,) capillary, the 

 length of the calyx ; anthers roundiih. Fiji- Germen al- 

 moft entirely fuperior, oblong, abrupt ; ftyles one or two, 

 thread-fhaped, the length of the germen, hifpid on one 

 fide ; ftigmas fimple. Perk. Capfule oblong, abrupt, burft- 

 ing all round, of two, tranfverfely interrupted cells. Seeds 

 one or two in each cavicy, nearly ovate. 



Obf. The number of ftamens, as well as of ftyles, 

 differs in different fpecies. 



Eff. Ch. Calyx jf five leaves, with dorfal points. Co- 

 rolla none. Stamens five or ten. Germen abrupt. Caplule 

 burfting all round. 



I. T. monogyna. Purflane Trianthema. Linn. Mant. 69. 

 Willd. n. 1. Ait. n. I. "Dcca.id. PI. Graffcs t. 109." 

 (T. Portukicaftrum; Linn. Sp- PI. 32 J. Portidaca curaf- 

 favica procumbens, capparidis folio, flore mufcofo, capfula 

 bifurcata; Herm. Parad. 213. t. 213. Kali curaftavicum 

 procumbens, foliis fubrotundis ; Pluk. Phyt. t. 95. f. 4.) — 

 Stamens more than five. Style one. Leaves elliptic-ob- 

 long. Stem with a hairy line along the upper fide — Native 



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of the Weft Indies and South America. SometimeB raifed, 

 for curiofity's fake, in our ftoves, where it flowers in fummcr. 

 The root is annual. Stems a foot long, much branched, 

 leafy, fpreading on the ground in every direftion, fmooth, 

 except a denfe, flender, hairy line along their upper fide. 

 Leaves oppofite, unequal, ftalked, oval or roundilh, obtufe 

 with a fmall point, entire, fmooth, red at the edge, from 

 one to two inches long Stipulas membranous, acute, half 

 the length of the footftalk, to which they are united. 

 Flowers axillary, feflile, about three together, pale and 

 membranous, with a pair of braSeas to each. Stamens from 

 fix to ten. Germen with two diftant horns. Style, accord- 

 ing to Linnsus, folitary, rough at one fide, with a fimple 

 Jligma. 



2.T.cryJlaliina. Cryftalline Trianthema. Sm. Spicil. 24. 

 t. 26, unpublifhed. Vahl. Symb. v. i. 32. Willd. n. 2. 

 (Papularia cryftallina ; Forflc. jEgypt.-Arab. 69. Gyro- 

 Ipermum depreflTum ; Linn. MSS.) — Stamens five. Style 

 one. Leaves elliptic-lanceolate. Stem papillary all over. — 

 Native of the Eaft Indies and of Arabia. We received it 

 from Madras, by the favour of Dr. Roxburgh. Linnaeus 

 cultivated it at Upfal, and has left in his herbarium fpeci- 

 mens, with a coloured drawing, and a delcription. He 

 made this plant a new genus by the name of Gyrojpermum, 

 judging it akin to Hcrniaria. It would have appeared in 

 the tiiird number of our Sp'ic'degium, had that work been 

 continued ; but the page, though printed, was never pub- 

 lidied. The root is perennial. Stems herbaceous (not 

 fhrubby), depreffed, a fpan long, reddifli, branched, leafy, 

 clothed with pellucid papillary granulations, which in the 

 dried fpecimen become (haggy hairs. Leaves oppofite, 

 ftalked, like Polygonum aviculare in iize and figure, with 

 united membranous y///)u/aj, as in the foregoing. Flowers 

 axillary, feffile, one, two or three together, Imall, whitifli 

 with a red germen, Bralleas of two oppoiite fcales under 

 each flower. Stamens five, very (hort. Style one, with 3 

 divided Jligma. Ripe eapjule of one cell, embraced by the 

 bafe of the calyx. Se.'ds two, one above the oiiur, black, 

 orbicular, deprefled, rough, with concentric tmrows. This 

 fpecies furely approaches in many points to Salfola, fo far 

 at leaft as to indicate a great affinity between the two 

 genera. 



3. T. pentandra. Smooth Trianthema. Linn. Mant. 70. 

 Willd. n. 3. (Rocama; Forlk. ^gypt.-Arab. 71. Por- 

 tulaciE ahinis polygonoides, bliti foho et facie maderafpa- 

 tenfis; Pluk. Phyt. t. 120. f. 3.) — Stamens five. Styles 

 two. Leaves obovate. Stipulas pointkfs. Stem nearly 

 fmooth. — Native of Arabia. Annual, cultivated by Lin- 

 njEUS at Upfal, but unknown in our gardens. ilie Uze and 

 habit of the plant anfwer to the firft fpecies, but ihe JUm 

 has no hairy line, nor more than a flight papilkiry roughnefs, 

 on the young branches only. Leaves nearly uiutorm, obo- 

 vate rather than elliptical, on \angJtaHs, to which the mem- 

 branous Jlipulas are entirely united, without any ieparate 

 points. Flowers purplidi. Styles recurved. Willdenow 

 copies Reichard's error of Racoma, for Roeama. 



4. 'V.fruticojd. Shrubby Trianthema. Valil Symb. v. I. 32. 

 Willd. n. 4. (Gymnocurposdecandruin; Forlk. vEgypt.- 

 Arab. 65. Ic. t. 10. Desfont. Atiaiit. y. 1. 203.)-— Sta- 

 mens ten ; five alternate ones iniperfucl. Style one. Leaves 

 cyhndrical, pointed. Stem flirubby, round, Imooth — Na- 

 tive of the fandy deferts eaft ot Cairo, as well as about 

 Tunis. A rigid fpreading Jlruh, about a foot high ; its 

 bark grey and weather-beaten. Leaves flcfliy, glaucous, 

 fmooth, obfcurely triangular, about half an inch long, m 

 little tufts. Flowers three to five, in tufts at the ends of 

 the branches, feffile, violet-coloured, a tUird of an mch 



broad. 



