z w o 



Pfziza, but of which we find no notice taken by Perfoon. 

 The NoLANA of Linnaeus, (fee that article,) was once pub- 

 lirtied under the name of Zivlngera humifufa, by John Hofer, 

 in Aa. Helvet. v. 5. 267. t. i, but this plant has had many 

 names befides. — Schreb. Gen. 802. Willd. Sp. PI. v. 2.569. 

 Mart. Mill. Dift. v. 4. (Simaba; Aubl. Guian. 400. 

 Juff. 373.) — Clafs and order, Decandria Monogynia. Nat. 

 Ord. Terebinlacex, Juff. 



Gen. Ch. Cal. Perianth inferior, fmall, in five deep, 

 ovate, acute fegments. Cor. Petals five, oblong, obtufe, 

 fpreading. Stam. Filaments ten, capillary, dilated and 

 hairy at the bafe, (horter than the corolla ; anthers ovate. 

 Pi/l. Germen fuperior, feated on a glandular receptacle, 

 roundirti, with five deep furrows ; ftyle longer than the fla- 

 mens, thread-lhaped, ftriated ; ftigmas five, fimple. Perk. 

 Capfules five, coriaceous, ovate, fpreading, of one cell. 

 Seeds folitary, ovate. 



EfF. Ch. Calyx in five deep fegments. Petals five. Fila- 

 ments dilated and hairy at the lower part. Capfules five, 

 coriaceous, feated on a flefhy receptacle. Seeds folitary. 



Obf. The flowers are faid to be occafionally only four- 

 cleft and oftandrous. This genus is not much akin, as 

 Willdenow thought, to Qua.ssia, but rather to Cnestis 

 (fee thofe articles) ; differing from the latter in having one 

 Jlyle inltead of five. How far thnr fruits correfpond, we 

 know not enough of the feed-veffel of Ztuingera to deter- 

 mine. 



I. Z. amara. Bitter Zwingera. Willd. n. i. (Simaba 

 guianenfis ; Aubl. Guian. 400. t. 153.) — Native of the 

 woods of Orapu in Guiana, bearing flowers and fruit in June. 

 A.Jhrub, not more than feven or eight feet liigh, vihokjlem 

 is three or four inches in diameter, with a white foft wood. 

 Branches numerous, alternate. Leaves alternate, (talked, 

 either ternate, or pinnate, of two or three pair, with an odd 

 one, of elliptic-lanceolate, pointed, emarginate, entire, fmooth 

 leaflets, the largeft of which are three and a half inches long, 

 and an inch, or more, in breadth. Flowers five or fix toge- 

 ther, in little axillary clufters. Petals whitilh, furrounding 

 the green di/k. Fruit yellow ; the inner rind green and 

 bitter. Nothing is recorded concerning the qualities or ufes 

 of this fhrub. 



ZWISEL, in Geography, a town of Bavaria, on the Re- 

 gen ; 42 miles E. of Ratifbon. 



ZWITTAU, or Zwittawa, a town of Moravia, in the 

 circle of Olmutz ; 30 miles N.W. of Olmutz. N. lat. 

 49° 43'. E. long. 16° 16'. 



ZwiTTAU, a river of Moravia, which rifes in the 

 fouth-eaft part of Bohemia, and joins the Swarta, near 

 Brunn. 



ZWOL, or SwoL, a town of Holland, in the department 

 of Overiffel, fituated on the river Aa, between the Iffel and 

 the Vecht, m the country of Zallant. It is a ftrong place, 

 well fortified, and furrounded with a double ditch, filled 

 with the waters of the Aa. Its fituation is very advantage- 

 ous, on an eminence which commands the country, and is 

 the ordinary paffage from Holland to the provinces of 

 Friefland, Groningen, and Overiffel. It was formerly a 

 free and imperial city, and ranked among the Hanfe towns. 

 The magiftracy is compofed of eight echevins, and eight 

 common-council. The celebrated Thomas a Kempis, 

 otherwife called Hamerken, was a regular canon in a priory 

 of Auguftines in this place, and died here in 1 47 1, aged 91 ; 

 28 miles S.W. of Covorden. N. lat. 52° 32'. E. long. 

 6° 1'. 



ZWOLFAING, a town of Auftria ; 8 miles S.S.E. of 

 Vienna. 



Z Y G 



ZWONIGRAD, a town of Dalmatia, and capital of a 

 diftrift ; 60 miles S.E. of Segna. 



ZWONITZ, a town of Saxony, in the circle of Erige- 

 birg ; 4 miles N.N.W. of Grubenhagen. 



ZWORNICK, a town of Bofnia ; 68 miles S.W. of 

 Belgrade. N. lat. 44° 37'. E. long. 18° ^d. 



ZWOTA, or TzwoDA, a river of Bohemia, which runs 

 into the Egra, near Falckenau. 



ZYDACZOW, a town of Auftrian Poland, in Galicia ; 

 30 miles W.N.W. of Hahcz. 



ZYGiENA, in /Indent Geography, an ifland in the 

 northern part of the Arabic gulf. Ptolemy. 



Zyg^na, in Ichthyology, a fpecies of fqualus, which fee ; 

 called by Willughby balance-fjh. See alfo Shark. 



ZYGASTICUM, Zuyarixox, formed of ^uyo;, a balarue, 

 among the /indents, money paid for weighing things. 



ZYGER, in Geography, a riyer o{ Hungary, which rUDS 

 into the Kyros, 5 miles W. of Boros Jeno. 



ZYGES, in /Indent Geography, a people of exterior Li- 

 bya, towards the coaft of the Mediterranean fea, W. of the 

 Mareotide Nome. Ptolemy. 



ZYGI, a people of Afia, of the number of thofe who 

 inhabited the Cimmerian Bofphorus, between the Athati and 

 Heniochi. Strabo. 



ZYGIA, in Botany, fuyia of Theophraftus, the fecond 

 kind of his c-ifisv^a/ivo,-, or Maple, remarkable for its yellow 

 and veiny wood, is fpoken of as a mountain-tree, but bo- 

 tanifts have not afcertained the precife fpecies. Pliny's ac- 

 count of this matter is extracted and abridged from the 

 above Greek author, but is not made at all more clear. He 

 however feems to have been acquainted with a beautiful 

 wood, of the Maple kind, which he fays was compared to a 

 peacock's tail, and grew chiefly in Iftria and Rhoetia. Can 

 this have been the Ikcer Opalus of modern authors ? (See 

 Willd. Sp. PL v. 4. 990. ) Anguillara has long ago fuf- 

 pefted that tree, which Linnseus and many other botanifts 

 have ftrangely overlooked, to have been the ^i/yia of Theo- 

 phraftus. Its native country, and veined yellow wood, 

 fometimes very beautiful, are in favour of this opinion. De 

 Theis, following Bodseus a Stapel, and other commentators 

 on Theophraftus, who are led by the obvious derivation of 

 the name from ^uyo;, a yoke, take the tree in queftion for 

 our Carpinus, whofe hard and tough wood ferves to make 

 yokes for oxen. He ingenioufly fupports this opinion by 

 the Celtic origin of Carpinus, from car, wood, and piriy 

 head ; and further by its Englifh fynonym, Hornbeam, oxen 

 being yoked by their horns. The wood of the Carpmus, 

 however, is neither yellow nor beautifully veined, and it is 

 moft probable fi;yia had fome other origin, or allufion. 

 Robert Conftantine, cited by Bodasus a Stapel, feems to 

 confound the Acer Opalus with Viburnum Opulus, which he 

 terms " the Opulus of Columella, a French Ihrub, ufed for 

 bowers." This laft has nothing in common with the hiftory 

 of the l^vyioc. 



Whatever may have been the ancient Zygla, Dr. Patrick 

 Browne, finding this name unoccupied, has apphed it to a 

 Jamaica flu-ub, which appears to belong to Mimo/a ; fee 

 Browne Jam. 279. t. 22. f. 3. Nor is this application fo 

 unfuitable as may feem at firft fight ; for the author had evi- 

 dently in his mind the yoked leaflets, to which he alludes in 

 his fpecific definition. We do not find that Linnius, except 

 in manufcript, or any other author, has adopted this as a 

 Mimo/a. Juffieu, in his Gen. PI. $66, ranges Browne's 

 Zygia, with a few other genera, at the end of his Legumi- 

 nofa, adding a reference to Mimo/a Bourgoni, Aubl. Guian. 

 t. 358, as a fimilar plant or genus. We do not fee why it 



