U L V 



U L V 



colour of the whole is either a full or pale crimfon, fome- 

 times tawny, or (lightly variegated. 



^■^. XJ. phmcifa. Feathered Green Laver. Hudf. 571. 



Eugl. Bot. t. 2375 Frond gelatinous, green, thread- 



ftiaped, fomewhat compreffed, branched ; branches pinnate, 

 with numerous, parallel, linear, (hining fegments. — Ga- 

 thered by Mr. Hudfon on the Dcvondiire coall ; by Mr. W. 

 Borrer at Brighthelmftone ; and by Mr. Woodward at Cro- 

 mer, in little rocky pools, tilled daily by the foa. This 

 Ipecies is fuppofed to be perennial ; it occurs throughout 

 tUe fummer and autumn. 'The fronds are three inches high, 

 ereft ; when frelh of a bright, uniform, very beautitul 

 green ; but the colouring matter foon coUeitls towards the 

 ikin, leaving the middle part vacant, and of a glafly tranf- 

 parency. The branches are numerous ; naked at their bafe ; 

 copiouily feathered above, with crowded, two-ranked, hncar, 

 obtufe, entire fegments, gradually Ihorter towards the point. 

 Nothing is known of the fruftification. The habit of the 

 plant, and the mode in which the green colouring matter 

 fubfides, accord with one tribe of the Confa-va ; but there 

 are no joints, nor internal partitions. 



34. U. protuberans. Prominent-feeded Laver. Engl. 

 Bot. t. 2583. — Frond gelatinous, thick, angular, green. 

 Seeds elliptical, at length prominent and deciduous. — Dif- 

 covered by Mr. W. Borrer, growing amongil mofs, on wet 

 fliady parts of the fand-rocks, at Uckiield, Suffex, in Sep- 

 tember 1813. This is fo fingular a produftion, that much 

 doubt may arife concerning its real genus. The whole is 

 an alTemblage of thick, fleihy, juicy, angular or wrinkled, 

 obtufe lobes, about half ar. inch high, of a light, pellucid, 

 g.-afs green. Copious elliptical uniform feeds, about the 

 fize ot red poppy-feed, are lodged feparately throughout 

 the whole fubllance, the external feries projefting beyond 

 the furface, and when ripe eafily feparating from it if 

 touched. According to our prefent ilate of knowledge 

 therefore, this plant can be referred only to Ulva, though, 

 like a few other fpecies, it is not of marine origin. 



Some doubtful fpecies require to be mentioned, and of 

 thefc we (hall take a compendious notice. 



N. coiifervoides, Linn. Sp. PI. 1632. (Conferva marina 

 fiftulofa; Dill. Mufc. 34. t. 6. f. 39-), has all the appear- 

 ance of a branched Conferva, but Dillenius defcribes it as 

 pervious throughout, admitting water freely along the ftem 

 and branches. Hence Linnsus made the plant an Ulva, 

 but our knowledge of many Confervn: renders the propriety 

 of fuch a determination doubtful. He adopted this fpecies 

 folely on the authority of the Hijloria Mufcorum, what he 

 fubfequently referred to it in his herbarium being very 

 dilTereat. 



U. liUiffimii, Linn. Sp. PI. 1632, we have already men- 

 tioned under 11. 12, as not at all different from Fucus fac- 

 r/Mirinus, which the original Gothland fpecimen clearly 

 fhcws. 



U. labyrinthiform'ts, Linn. Sp.Pl. 1633, found by Van- 

 delli in warm baths near Padua, and defcribed, with a good 

 figure annexed, in that author's TraHatui de Tliermts yfgri 

 Patavini, 120. t. 2, (hould feem to belong rather to Tre- 

 mtlla, no feeds having been obferved, 



U. lumbrkalis, Linn, Mant. 311, may be found under 

 Mebtensja. 



U. papUlofa, ibid, is probably a Fueui, near to the Lin- 

 man F. fp'inofus, and perhaps the fame with F. fi'irialus. 

 Turn. Hid. Fucor. 32. t. 16. 



U. prumformis, Linn. Sp. PI. 1633, and 



U. incraffata, Hudf. 572, are fpecies of R1VUJ.ARIA ; fee 

 that article. 



Vol. XXXVII. 



U. granulata, Linn. Sp. PI. 1633, is Trcmella granulala, 

 Engl. Bot. t. 324. 



U.fleUata, Wulf. in Jacq. Coll. v. i, 351. Prodr. Fl. 

 Grac. n. 2522, very nearly related to Lichenoides gelatiiio- 

 fum tenue reticulatam. iDill. Mufc. 138. t. 19. f. 21, if 

 not the very fame ; is likewife next akin to Conferva umbil't' 

 aata of Col. Velley, Tranf. of Linn. Soc. v. 5. 169. t. 7. 

 Tliefe plants are fo pecuhar in ftruAure, that their fruAifi- 

 cation, when difcovered, will probably eftablidi them as a 

 genus by themfelves. At leail they could be referred to 

 Ul-va, or to Conferva, for the prefent only, nor are they 

 reconcileable to the generic charatter, or habit, of either. 



Ulva, in Geography, one of the Wcilern iflands of Scot- 

 land, about feven miles in circumference, near the W. coall 

 of Mull. N. lat. 56^^ 28'. W. long. 6° 13'. 



ULUA, a river of Honduras, which runs into the bay, 

 N. lat. 15° 48'. W. long. 88=' 38'. 



Ulua, or Sol, a fmall iiland in the gulf of Mexico. N. 

 lat. 1 5° 40'. 



ULUBR^, in Ancient Geography, a borough of Italy, 

 in Latium, in the vicinity of Velitrs and of Suefl'a Pometia • 

 it was a Roman colony. Horace fays of it (Epift. ii. 

 V. 28. 1 



■ Navibus atque 



Quadrigis petimus bene vivere ; quod pctis, hie ell, 

 Eft Ulubris ; animus fi te non deficit aequus." 



But we learn from Juvenal (Sat. x. v. 10 1.) that this 

 place became defert : 



" Et de menfura jus dicere, vafa minora 

 Frangere pannofus vacuis .^dilis Ulibris." 



ULUCITRA, a town of Thrace, ia the province of 

 Rhodope. 



ULVERSTON, in Geography, an ancient market-town in 

 the hundred of North Lonfdale, and county palatine of Lan- 

 cafter, England, is fituated within the diftridt of Furncfs, at 

 the dillance of 20 miles N.W. from the county-town, aud 270 

 miles N.W. by N. from London. Edward I., in the eighth 

 year of his reign, granted a charter to this town for a weekly 

 market and annual fair : but the benefit derived from this 

 grant was inconfiderable, while Furnefs abbey was inhabited 

 by the monks, as the great mart of this dillrirt was Dalton, 

 which, from its contiguity and conneftion witii the abbey, 

 faperleded all the vicinal towns. After the dillolution of 

 that monaftery, Dalton loft its importance, and Ulverllon, 

 from its convenient and central fituatioii, became the em- 

 porium of the diftrift. The fair granted by king Edward 

 has grown into dil'ufe, but two others are annually held. 

 Monday is the market-day. The principal trade ot this 

 town is in iron-ore, pig and bar iron, lime-llone, blue Ilate, 

 oats, barley, and beans : the manufaftures are cotton, check, 

 canvas, and hats. Within the laft fixty years, great im- 

 provements have taken place in the appearance of the town ; 

 the llreets are fpacioiis and clean ; and tlie lioufes, which, 

 from the advance of trade, rapidly increafe in number, are 

 well built : in the return of the year 1811, they were elli- 

 mated at 728, the population at 3378. At the intcrleftion 

 of two principal llreets, in the centre of the moll ancient 

 part of the town, is an old crofs. The church, wiiich 

 ftands in a field at a fmall diilance from the town, was aU 

 moll wholly rebuilt in 1804 '• 't is a plain, neat edifice ; has 

 three ailles and a fquare tower. A fmall theatre, an al- 

 fembly-room, and a public fubfeription library, have bwa 

 recently tftablilhed. A canal, aboiil a mile and a quarter 

 in length, was cut in 1795, to form a communication from 

 Y y the 



