iit; 



€t)C Ercatfurp of Botang. 



[trip 



TRIPETALOID. Consisting of six parts, 

 of which three resemble petals, and three 

 are green and small. 



TRIPETALOIDE.E. One of theLinna?an 

 natural orders, which included Butomus, 

 Sagittaria, and their allies. 



TRIPHASIA. Four species have been 

 described as belonging to this genus of 

 Aurantiacece, but one of them is now re- 

 ferred to Atalantia, and two others are 

 imperfectly known; so that the genus is 

 practically confined to a single species, T. 

 trifoliata, that on which it was originally 

 founded byLoureiro. This is a spiny shrub, 

 having leaves composed of three egg- 

 shaped leaflets, notched at the top; its 

 flowers are white and sweet-scented, and 

 usually grow singly in the leaf-axils ; pro- 

 ducing one to three-celled berries, contain- 

 ing a single seed surrounded with pulp in 

 each cell. They have a trilobed calyx, 

 as many petals, six distinct stamens, and 

 an ovary elevate4 on a short stalk, and end- 

 ing in a longish thick style, which ulti- 

 mately falls away. It is a native of South- 

 ern China, but it is now naturalised in 

 ; many parts of the East Indies, and is also 

 i cultivated in the West Indies. Its fruits 

 are about as large as hazel-nuts, and have a 

 red skin. "When ripe they have an agree- 

 1 able sweet taste, but if gathered green 

 they have a strong flavour of turpentine, 

 and the pulp is very sticky. They are 

 sometimes preserved whole in syrup, and 

 occasionally sent to this country from 

 Manilla as lime-berries. [A. S.] 



' TRIPHYLLOU3. Having the leaves in 

 a whorl of three ; also, having only three 



j leaves. 



TRIPINXARIA. Colea. 



\ TRIPINNATE. "When the leaflets of a 

 bipiunate leaf become themselves pinnate. 



I TRIPIXNATIFID. Three times divided 

 in a pinnatifld manner. 



TRIPINNATISECT. Parted to the base 

 in a tripinnate manuer. 



TRIPLANDRON. A tree of Columbia, 

 forming a genus of Clusiacece. The short 



'. recurved flower-stalks are arranged in 



1 groups of three. The flowers are dioecious : 

 the males having two small bracts, placed 

 beneaththefour-leavedc.alyx;four roundish 

 spreading petals, reflected at the margins; 



i and numerous stamens in three rows, com- 

 bined together into a convex four-sided 



j mass, with thick filaments, and terminal 

 anthers. In the females the barren stamens 

 are combined into a flesby four-cornered 



: cup, surrounding the globose four-corner- 

 j ! ed many-celled ovary, and there are nine 

 ; j sessile radiating stigmas. [M. T. M.] 



! TRIPLARIS. A genus of Polygonacece 

 from Tropical South America, remarkable 

 for the great development of the three 

 outer lobes of the limb of the fruiting 

 perianth, which somewhat resemble the 

 wings of the maple fruit. They are trees 

 or shrubs, with alternate shortly stalked 



entire leaves, accompanied by extremely 

 short obliquely truncate ochrese, and bear- 

 ing racemose bracteated unisexual flowers, 

 of which the males are six or eight-parted. 

 The nut is three-edged, with winged an- 

 gles, and the embryo similar in shape to 

 the nut, not six-lobed as in Ruprechtia. 

 Schomburgk describes the T. Schomburg- 

 kiana, which he found in Guiana, as having 

 the trunk and branches hollow between 

 the nodes, and serving as the habitation of 

 very venomous ants. [J. T. S.] 



TRIPLE-NERVED, TRIPLINERVED, 

 TRIPLINERVIS. The same as Triple- 

 ribbed. 



TRIPLE-RIBBED. "When of three ribs | 

 the two lateral ones emerge from the 

 middle one a little above its base. 



TRIPLTCATO-PINXATE. The same as j 

 Tripinnate. 



TRIPLICI. Thrice repeated. 



TRIPLO. Thrice. 



TRIP-MADAM. Sedum reflexum. 



TRIPOLI POWDER. A pulverous sub- 

 stance which is imported from Germany, 

 and used as a material for polishing steel. 

 It consists entirely of the flinty integu- 

 ments of several species of Biatomacece, di- 

 vested of everything except the silex. Se- 

 veral of the species of which it is composed, j 

 are found to be identical with those which j 

 are at the present day contributing to form | 

 a sediment on the Victoria Barrier, in the j 

 Antarctic regions, hundreds of miles in j 

 length. Ehrenberg even asserts that in : 

 beds of fossil Biatomacece, which are occa- 

 sionally several feet in depth, species are 

 still in the process of propagation, but this 

 is doubtless a mere fancy. The Phonolite 

 stones of the Rhine also abound in the 

 remains of these minute Algce. [M. J. B.] 



TRIPOLIUM. A genus of Composites, 

 very closely allied to Aster, and hardly to , 

 be distinguished from it except by the j 

 involucre, which consists of a number of , 

 bract-like scales, disposed along the upper | 

 part of the flower-stalk, or somewhat bi- 

 seriate. The ligulate florets are longer 

 and narrower than in Aster. The species 

 are somewhat fleshy, and inhabit salt- 

 marshy districts throughout Europe and 

 North America. T. vulgare, frequently 

 called Aster Tripolium, is not unfrequent 

 on muddy seashores or salt-marshes in | 

 this country ; its ray-florets are purple, or 

 sometimes absent. The somewhat fleshy 

 leaves of this plant are occasionally gather- 

 ed, with those of Salicornia, to make a kind 

 of pickle. [M. T. MJ 



TBJPSACUM. A genus of grasses be- 

 longing to the tribe Rottboelliece. The in- 

 florescence is in spikes, either solitary or | 

 three together— the upper male, the lower \ 

 female ; male glume two-flowered, the outer 

 male, the inner neuter ; female glume one- 

 flowered ; styles two. The few species are 

 natives of the Southern States of America. 

 The Buffalo-grass, T. dactyloides, is consi- 



