T 11 I 



T R I 



iient ftyles, which crown the feed-veflel. Dr. Swartz had 

 originally called this genus Cranlzia, bvit another having 

 been fo named by Schreber, he adopted the above, which is 

 very exprcffive. — Swartz Ind. Occ. 331- t. 7. Schreb. 

 Gen. 630. Willd. Sp. PI. V. 4. 338. Mart. Mill. Did. 

 V. 4. (Crantzia; Swartz Prodr. 38.) — Clafs and order, 

 Monoecia Tetrandria. Nat. Ord. Tricocciz, Linn. Euphor- 

 biiS, JufT. 



Gen. Ch. Male, Cal. Perianth of one leaf, deeply di- 

 vided into four lanceolate, acute, ereft, coloured fegments. 

 Cor. none. Stam. Filaments four, flefhy, cylindrical, in- 

 clining to «vate, ereft, longer than the calyx ; anthers ter- 

 minal, ovato-lanceolate, acute, ereft, furrowed along one 

 lide, recurved after flowering. 



Female, in the fame tuft, or clufter, Cal. Perianth of 

 five ovate, acute, ereft, coloured, permanent leaves. Cor. 

 none. Pift. Germen fuperior, fomewhat triangular ; ftyles 

 three, ftiort, fomewhat conical, feparable at length into two 

 parts ; ftigmas linear, longer than the ftyles, fpreading, re- 

 curved, channelled, permanent. Per'tc. Capfule turbinate, 

 triangular, with three cells, tliree valves, and three recurved 

 horns, each horn fplitting, by the opening of the claftic 

 caplule, into two parts. Seeds two in each cell, oblong, 

 triangular, pohlhed, each enveloped in a whitifli membranous 

 lax tunic. 



Eft. Ch. Male, Calyx in four deep fegments. Corolla 

 none. Stamens flefhy. 



Female, Calyx of five leaves, inferior. Corolla none. 

 Styles three. Capfule with three cells, three elaftic valves, 

 and three horns. Seeds in pairs, with a membranous 

 tunic. 



1. T. Itsvigata. Smooth Tricera. Swartz Ind. Occ. 

 333. Willd. n. I. (Crantzia lasvigata ; Sw. Prodr. 38. 

 Vahl Symb. v. 2. 99.) — Leaves ovato-lanceolate, triple- 

 ribbed ; veinlefs beneath. Umbels axillary. — Native of 

 buftiy hills, in the weftern part of Jamaica, flowering in 

 fpring. Swarlv,. Vahl received it from Santa Cruz. — A 

 branchingT^rwi, two or three feet high ; its branches long 

 and ipreading, fmooth, leafy, obfcurely quadrangular. 

 Leaves ftalked, oppofite, two-ranked, an inch long, acute, 

 convex, entire, very fmooth, rather rigid. Footjlalks ftiort, 

 round. 7^/owi>/-j whitifh, in fmall, axillary, oppofite, ftalked 

 umbels ; the males from four to eight, with little white 

 oppofite braSeas on their partial ftalks ; female folitary in 

 the centre, rather larger, feflile, confpicuous for its long 

 fpreading_/?/fmaj. Capfule the fize of a large pea, with three 

 taper horns, exceeding its own length. Seeds black, and 

 fliining, in a loofe white ttmk. Dr. Swartz juftly indicates 

 the affinity of this plant to Biixus, from which it is princi- 

 pally diftinguifhed by the want of a corolla, the form of the 



Jilaments zndjligmas, and the tunic of \ts feeds. 



2. T. chrifolia. Lemon-leaved Tricera. Willd. n. 3. 

 — " Leaves ovate-oblong, pointed, triple-ribbed, veiny on 

 both fides. Clufters axillary." — Gathered by M. Brede- 

 meyer in the Caraccas. Afiruh fifteen feet high, refem- 

 bling the Coffee-tree, branched, with a pale -grey bark, and 

 hard yellow wood. Leaves rigid and fliining, four inches 

 long, and two broad, on ftiort ftalks. Chijlers about an 

 inch in length, of about ten white male flowers, on fhort, 

 alternate partial ftalks, with minute, acute bracteas, and one 

 folitary, feflile, terminal female flower. Filaments a little 

 eompreffed, moft tumid in the upper part. Fruit much as 

 in the foregoing. 



3. T. cordifoUa, Heart-leaved Tricera. Willd. n. 3 



" Leaves elHptical, obtufe, veiny ; fomewhat heart-ftiaped 

 at the bafe. Flowers in lateral tufts." — Native of the 

 V/eft Indies. — A Jhrub, with round grey branches ; the 



young ones fomewhat quadrangular, fmooth. Leaves oppo- 

 fite, ftalked, half an inch long, coriaceous, entire, finely 

 veined on both fides, fomelimes emarginate ; ftiining above ; 

 paler beneath. Flowers fmall, on the laft year's branches. 

 IVilldenoiL'. 



TRICEROS, a genus of Loureiro's, has precifely the 

 fame derivation as Tricera. (See that ai-ticle.) The 

 latter being a clear and well-eftabliftied genus, we cannot 

 allow one whofe hiftory is obfcure, and which may pofiibly ' 

 be already known to fyftematic botanifts, under fome other 

 denomination, to " exalt its horns" againft its brother. . 

 As to priority of date, there is little to confider, they having j 

 been publiftied within a year of each other, the author of j 

 each thinking his the original name. We ftiall, notwith- I 

 ftanding, here give the charafters of the Triceros, for the in- 

 formation of thofe who may wifti to inquire what it is. — 

 Loureir. Cochinch. 1 84. — Clafs and order, Pentandrla 

 Trtgynia. Nat. Ord 



Gen. Ch. Cal. Perianth inferior, of five acute, fpread- 

 ing, permanent leaves. Cor. Petals five, oblong, fpreading, 

 longer than the calyx. Stam. Filaments five, capillary, 

 about the length of the petals ; anthers ovate, of two cells. 

 Pyi. Germen fuperior, roundifti, unequal ; ftyles three, 

 ftiort, diftant from each other at the bafe ; ftigmas fimple. 

 Peric. Berry coriaceous, round at the bafe, with three 

 horns at the top, of three cells. Seeds roundifti, pointed, 

 two in each cell. 



Eft. Ch. Calyx of five leaves. Petals five, oblong. 

 Berry fuperior, of three cells. Seeds two in each cell. 



Obf. Loureiro fays " bacca difperma,'" by which, ac- 

 cording to his frequent mode of expreflion, he means there 

 are two feeds in each of the three cells ; at leaft, fo we feel 

 ourfelves obliged here to underftand him. 



I. T. cochinchinenjis. Cay au rilng of the natives of 

 Cochinchina, where this plant grows wild on the hills. It is 

 a tree of a middling ftature, with fpreading branches. Leaves 

 bipinnate, with two pair of ovate, pointed, feiraled, rigid 

 leaflets, befides a terminal one, in each fubdivifion. Flowers 

 white, in loofe, nearly terminal, cluilers. Berries fmall, 

 ufelefs. 



TRICETO, in Geography, a town of Naples, in Cala- 

 bria Citra ; 14 miles E.S.E. of Scalea. 



TRICHECHUS, in Zoology, a genus of the order of 

 Bruta, and clafs of Mammalia, in the Linnaean fyftem : the 

 charatlers of which ai-e, that it has no fore-teeth in the full- 

 grown animal, either above or below ; that it has fohtary 

 tuflcs in the upper jaw ; that the grinders on both fides are 

 formed of a rugged bony fubftancc ; that the lips are gemi- 

 nated or doubled ; and the hinder feet, at the extremity of 

 the body, united into a fin. 



This genus is altogether marine, comprehending few 

 fpecies. Gmelin, in his edition of the Linna;an Syftem, 

 enumerates the three following 



Species and Varieties. 



RosMARUS, the Rofmarus of Johnfton, the Morfe of 

 Buffbn, the Sea-horfe of Ray and Ellis, and the ArSic 

 Walrus of Pennant and Cook's laft voyage. It is charac- 

 terifed by its diftant, exferted tuflis. It inhabits the Northern 

 feas, and chiefly within the arftic circle. It grows to a 

 large fize, having been found 18 feet long, and 12 feet in 

 girth round the body. Its form is inelegant ; having a 

 fmall head, ftiort neck, thick body, and ftiort legs ; the lips 

 thick, and the upper one cleft into two large rounded lobes, 

 the furface having numerous femi-tranfparent briftles of a 

 yellowifti tinge, and about the fize of a ftraw in diameter, 

 and three inches long, pointed at their extremities ; the 



eyes 



