D E V 



owing to the fmallncfs of the tree, of little ufe. Miller 

 cultivated this plant at Chelfea in 1739, and it is marked 

 by Mr. Aiton, as flowering in the ilove about June and 

 July. A low, irregular, n^\A Jhrub, with a grey bark, 

 and zigzag branches, whofc ^fliort, alternate, lateral fhoots 

 fpread horizontally, and each finally becomes tipped with 

 a hard (harp thorn. Thcfc branches bear very fine and 

 delicate foliage, whofe very minute oblong leaflets are 

 fmooth above, hairy at the back, and appear to be fen- 

 fitive ; their common Jlalk alio is hairy. Sftkes axillary, 

 ftalked, an inch or two long, fwelling upward, obtufe, 

 dcnfe, and many-flowered. Perfeft foivers numerous, 

 yellow, with ten JIamens, whofe anthers are ovate, of two 

 cells, and tipped with a fmall round gland. The lower 

 fowers, lefs numerous, are pale rofe-colourcd, abortive, 

 having ten linear, obtufe, (trap-like leaves inflcad of (lamens. 

 Legume falcate, linear, comprcfled, but not flat, about 

 three inches long, and one-fourth of an inch broad, fmooth, 

 obtufe. Seeds ten to fifteen, oblong, yellow. 



10. D. divergens. Spreading-branched Defmanthus. 

 Willd. n. 10. (" Ergett Dimmo ; Bruce's Travels, v. 5. 

 34, with a plate.") — " Branches becoming folitarv fpines. 

 Fird divillon of the leaves of eight pair ; fecond of many. 

 Spikes in pairs, cylindrical, pendulous. Legume twilled." 

 — Native of Abyflinia ? A Jlirttb, fix feet high, with 

 divaricated furrowed branches, befprinkled with white warts. 

 Firft divifions of the leaves from fix to nine pair. Leajlets 

 numerous, linear, angular at the bafe, and fringed at the 

 edges. Thorns rigid, ftraight, awl-(haped, fometimes in 

 pairs. Legume linear, contorted. Willdenow, who made 

 this defeription from a living fpecimen, fays the gardeners 

 call this fpecies M'lmofa di-varicata. But what is fo deno- 

 minated in Donn's Hort. Cant. ed. 5. 240, comes from 

 Carolina, and, as far as we can difcover, does not occur in 

 Hort. Keiu. Bruce's figiu-e above quoted was thought 

 by Willdenow to anfwer exaftly to his own garden flirub, 

 except the want of thorns ; but as thefe occur on the 

 older branches only, they might be overlooked. We have 

 not feen fpecimens of either Bruce's or Willdenow's 

 plant. 



DETROIT. Add—The civil diftrift of Detroit, which 

 IS one ot the divifions of the territory of Michigan^ contains, 

 by the cenfus of 1810, 2227 inhabitants, of whom 17 were 

 flaves. 



DEVAUXIA, in Botany, fo named by Mr. Brown, in 

 honour of M. Defvaux, author of a difll-rtation on the na- 

 l"i? j^""'^^ °^ ^"""' '" '''^ Journal tie Botanique. M. La- 

 billardiere had previoufiy publiflied this fame genus under 

 the appellation of Centrolepis, from «e.1jo., the centre, and 

 Xt^r..-, afcale; which, giving an erroneous idea of the ftruc- 

 ture ot the flower, it was found neceffary to change.— Brown 

 Prodr. Nov. Holl. v. ,. 252. (Centrolepis; Labill. Nov. 



no\\. v. I. 7-)— Clafsandorder,Mo«flWWaPo/vp-v«''a. Nat. 

 Ord. Rejliacex, Brown. 



Gen. Ch. Cal. Sheath of two concave, keeled, permanent, 

 alternate valves, clafping each other at the bafe, containing 

 an mdefinite number of flowers. Cor. of two oblong, mem- 

 branous valves, fometimes accompanied by fmall accefl-ory 



cales. Stam Filament one, capillary, drooping, rather 

 longer than the largeft valve of the corolla ; anther fimple, 

 oval. I yi. Germens feveral, from three to twelve, ovate- 

 oblong, fuperior, inferted into one fide of a central oblong- 

 receptacle and all turned one way ; ftyles as many, thread- 

 Ihaped, either diftinft at the bottom or combined, Ipreading 

 or deflexed at the fummit ; ftigmas linear, downy. Perk. 



Caplules as many as the germens, membranous, oval, of one 



D E V 



valve and one cell, biirfl.ing along one fide. Seed folitary, 

 obovate, pendulous. 



Efl". Ch. Sheath of two valves, with feveral flowers. 

 Corolla of two membranous valves. Anther fimple. Ger- 

 mens unilateral. Capfules burfting longitudinally, at one 

 fide. Seed folitary. 



This genus, of which we have already fpoken as akin to 

 Alepyrum, (fee that article,) confifts of fmall herbaceous 

 plants, growing in tufts, and refembling the lefler fpecies of 

 Scirpus. The roots are fibrous and tufted. Stem none. 

 Leaves radical, brifl;le-fliaped, half fheathing at the bafe. 

 Flower-Jlalks radical, thrcad-fliaped, undivided, naked. 

 Sheath folitary, terminal, its valves either awned or not. 

 Nine fpecies are defcribed by Mr. Brown, as follows. 



Seft. I. Receptacle fcaly. 



1. T). pulvinata. Cufhion Devauxia. — Receptacle fcaly. 

 Styles fix or feven, diftinft. Sheath pointlefs ; lower valve 

 rather hifpid ; upper fmooth. Leaves nearly as tall as the 

 flower-ftalks. — Gathered by Mr. Brown, in Van Diemen's 

 ifland. 



2. D. Paterfoni. Paterfon's Devauxia. (Centrolepis 

 a^mula ; Rudge Tr. of Linn. Soc. v. 10. 284. t. 12. f. 2.) 

 — Receptacle fcaly. Styles eight or nine, diilinft. Sheath 

 pointed, many-flowered ; upper valve nearly fmooth ; lower 

 hifpid. Adult flower-ilalks hairy, as well as the leaves, 



which are only one-third as tall Gathered by Col. Pater- 



fon and Mr. Brown, near Port Jackfon, New South Wales. 

 Leaves very narrow, an inch long. Floiver-Jlalhs above 

 two inches high. Sheath tumid, fcarcely rifing above the 



Jluiuers. 



3. D. Jlrigofa. Briftly Devauxia. — Receptacle fcaly. 

 Styles from live to feven, diilinft. Sheath pointed ; both 

 valves hifpid. Adult flower-ftalks fmooth, thrice as long 

 as the finely hifpid leaves. — Found by Mr. Brown, on the 

 fouthern coaft of New Holland. 



Seft. 2. Receptacle ivithout fcales. Sheaths hifpid. 



4. D. tenuior. Slender Devauxia. — Receptacle naked. 

 Styles four or five, combined at the bafe. Sheath almolt 

 pointlefs, briftly as well as the leaves. Flower-ftalk flightly 

 hairy. — Found in theiiland of Van Diemen, by Mr. Brown. 



5. D. Bdlardierl. Labil'ardiere's Devauxia. (Centro- 

 lepis fafcicularis ; Labill. Nov. Holl. v. i. 7. t. i. C. cufpi- 

 digera ; Rudge Tr. of Linn. Soc. v. 10. 283. t. 12. f. I.) — 

 Receptacle naked. Styles two or three, combined at the bafe. 

 Sheath briftly ; with awns nearly as long as the valves. 

 Leaves rather hairy. Stalks fmooth. — Native of Port Jack- 

 fon, as well as of Van Diemen's idand. Brown, Labillar- 

 d'lere. The numerous briftie-fliaped leaves are about an inch 

 and a half long, ereft ; thofe which clafp the bafe of each 



Jlomer-Jlalli, which is half as tall again, are toothed at their 

 inner margin towards the bafe. Valves of \hejheath twice 

 as tall as the Jloivers. Corolla toothed, obtufe. 



6. D. exferta. Prominent-flowered Devauxia. — Recep- 

 tacle naked. Styles from feven to ten, diftinft. Sheath 

 pointlefs, briftly, not quite fo long as the flowers. Stalks 



and leaves downy Gathered by Mr.Brown, in the tropical 



part of New Holland. 



Seft. 3. Receptacle lu'uhout fcales. Sheaths fmooth. 



7. D. Bankjii. Bankfian Devauxia. — Receptacle naked. 

 Styles from eight to ten. Sheath pointlefs, very fmooth, 

 many-flowered, membranous at the edges. Stalks three or 

 four times the length of the leaves — Gathered by fir Jofeph. 

 Banks, in the tropical part of New Holland. 



8. D. pufdla. Little Devauxia. — Receptacle naked. 

 Styles fix or feven. Sheath pointlefs, very fmooth, mem- 

 branous at the edges, with but few flowers. Stalks and 



leaves 



