CONVOLVULACE.E. XXXII. DICHOSDRA. XXXIII. FALKIA. XXXIV. CDSCCTA. 



303 



reniform, rounded, not emarginate, the same colour on both sur- 

 faces, downy beneath ; calyxes villous, closed. If.. H. Native 

 of South Carolina, by way-sides about Charlestovvn ; and on the 

 banks of the Mississippi, near New Orleans. Pursh, fl. 1. p. 

 187. D. repens, ft. Poir. suppl. 2. p. 470. D. repens, Nutt. 

 in amer. phil. trans, n. s. 5. p. 195. Anonymos repens, Walt, 

 fl. carol. 1. p. 110. Demidofia repens, Gmel. syst. veg. p. 458. 

 Plant small, creeping. Flowers small, green. 



Carolina Dichondra. Fl. June, Aug. Clt. 1812. PI. 

 creeping. 



4 D. SERI'CEA (Swartz, fl. ind. occ. 1. p. 556. icon. t. 10.) 

 leaves reniform, retuse at the apex, glabrous, or downy above, 

 silky and silvery beneath ; calyx exceeding the corolla a little. 

 I/ . F. Native of Jamaica, and near Santa Fe de Bogota ; and 

 of Mexico, about Jalapa. D. repens, c. sericea, Poir. suppl. 2. 

 p. 470. This species comes very near D. repens ; and only dif- 

 fers in the leaves being smaller, white, and silky beneath, not of 

 the same colour on both surfaces. 



Var. ft ; leaves reniform, emarginate, nerved and silky be- 

 neath. I/ . F. Native of Peru. D. repens, Ruiz, et Pav. fl. 

 per. 3. p. 23. D. repens Peruviana, Poir. suppl. 2. p. 471. 



Silky Dichondra. Fl. June, Aug. Clt. 1793. PI. creeping. 



5 D. ARGE'XTEA (Willd. hort. berol. 2. p. 81. t. 81. enum. 1. 

 p. 297.) leaves broadly reniform, cuneated at the base, retuse at 

 the apex, silky and silvery on both surfaces ; corolla exceeding 

 the calyx. 1. F. Native of Mexico, near Guanaxuato and 

 Zelaya ; also near Honda. H. B. et Kunth, nov. gen. 3. p. 

 120. 



SiYcery-leaved Dichondra. Fl. June, Aug. Clt. 1818. PI. 

 prostrate. 



J" Doubtful species. 



6 D. REPA'KDA (Willd. rel. ex Roem. et Schuhes, syst. 6. p. 

 209.) leaves reniform, repand, villous. If.. F. Native of 

 South America. Humb. et Bonpl. 



Rcpand-leaved Dichondra. PI. creeping. 



7 D. CYMBALARI.EFOLIA (Willd. rel. 1. c.) leaves reniform, 7- 

 lobed, downy beneath. If. . F. Native of? 



Cymbalaria-leaced Dichondra. PI. creeping. 



Cult. These are pretty little creeping plants, generally 

 having the leaves silvery on the under sides. D. repens, Caro- 

 liniana and rotundifolia grow well in the seams between flat 

 stones in front of a stove or green-house ; and even the other 

 species will do in a similar way through the summer. All grow 

 well in pots in a mixture of peat, loam, and sand ; and are 

 easily increased by dividing the plants, which are all creepers. 



XXXIII. FA'LKIA (so named by Thunberg, in honour of 

 John Peter Falck, a Swede, professor of botany at Petersburgh, 

 and who accompanied Pallas in part of his travels in Siberia.) 

 Thunb. nov. gen. 17. Lin. suppl. 30. Juss. gen. 132. Schreb. 

 gen. no. 611. Convolvulus species, Thunb. 



LIN. SYST. Pentandria, Tetragy'nia. Calyx 5-parted. Co- 

 rolla campanulate, crenated. Styles 4 ; stigmas globose. Ovaria 

 4, 1 -.^eeded. A small, suffruticose, glabrous plant. 



I F. RE'PENS (Lin. suppl. 211. Thunb. diss. nov. gen. 1. 

 p. 17.) t? . F. Native of the Cape of Good Hope, on hills 

 near Cape town. Convolvulus Falkia, Thunb. prod. 1. p. 35. 

 fl. cap. 2. p. 15. Andr. rep. t. 257. Steins brownish grey, 

 decumbent, rooting ; branches filiform. Leaves scattered, peti- 

 olate, cordate-ovate, obtuse, entire. Peduncles hardly longer 

 than the leaves. Corollas red, with a paler throat. 



Creeping Falkia. Fl. May, Aug. Clt. 1774. PI. creeping. 



Cult. Jdlfcia is a pretty little plant, which grows freely in a 

 mixture of loam and peat, or any light soil ; and the plant is 

 readily increased by division. 



TRIBE IV. CUSCUTE\E (this tribe only contains the genus 

 Cuscuta.) Choisy, in mem. soc. phys. gen. 6. p. 497. Em- 

 bryo without cotyledons. Plants parasitical. 



XXXIV. CUSCUTA (According to Golius, 2036, it is 

 derived from the Arabic name Kechout.) Tourn. 422. Lin. gen. 

 no. 170. ed. Schreb. no. 227. Gaertn. fruct. 1. p. 297. t. 62. 

 Juss. gen. 137. R. Br. prod. p. 491. H. B. et Kunth, nov. 

 gen. amer. 3. p. 121. Choisy, in mem. soc. phys. gen. G. 

 p. 497. 



LIN. SYST. Pentandria, Digynia. Calyx 5, rarely 4-parted. 

 Corolla urceolate or campanulate ; limb 5, rarely 4-cleft, mar- 

 cescent. Stamens usually furnished with a scale at the base of 

 each, rarely naked. Styles 2, sometimes free, and sometimes 

 combined ; stigmas acute or capitate. Ovarium 2-celled ; cells 

 2-seeded. Capsule 1-2-celled. Leafless, twining, parasitical 

 herbs. Flowers aggregate, subcapitate, spicate, umbellate, or 

 corymbose, unibracteate. The seed does not split into lobes, 

 but opens and puts forth a little spiral body, which is the em- 

 bryo. The stalks twine contrary to the sun's apparent motion, 

 sending out a number of little vesicles, which attach themselves 

 to the bark of the supporting plant. 



1. Species natives of Europe. 



1 C. EUROPE' A (Lin. spec. ed. 1. p. 180.) flowers aggregate, 

 nearly sessile ; corolla with a naked throat, 4-5-cleft ; epipe- 

 talous scales none : stigmas acute, filiform. 0.^. H. Native 

 of Europe and Caucasus, in hedges, usually on bushes and the 

 loftier plants, as Brambles, Bitter-sweet, Ferns, Thistles, Hemp, 

 Hops ; also on Flax, Nettles, and Grass. In England, in 

 Cambridgeshire ; at Shipston upon Stone, Worcestershire. In 

 Scotland, near Aberdeen, and at Musselburgh. Smith, engl. bot. 

 t. 378. Bieb. fl. cauc. 1. p. 115. Oed. fl. dan. t. 199. 

 Plenck. off. t. 70. Hook fl. lond. 67. C. major, Bauh. pin. 

 p. 209. D. C. fl. fr. no. 2754. C. tetrandra, Mcench. C. 

 scandens, Brotero, fl. lus. p. 208. C. Epithymum, Thuill. fl. 

 par. ed. 2. 1. p. 85. C. filiformis, Lam. fl. fr. 2. p. 307. C. 

 densiflora, Willemet, in Linnaea, 1. p. 322. Cassutha or Cus- 

 cuta, Fuchs. hist. 347. t. S48. Bauh. hist. 3. p. 266. Calyx 

 red ; segments bluntish. Corollas urceolately campanulate, 

 white, usually 4-clefr, and tetrandrous ; but in the south of 

 Europe 5-cleft and pentandrous. Seeds usually 2 in each cell. 

 Anthers yellow. 



European or Great Dodder. Fl. Aug. Sept. Britain. PI. 

 parasitical. 



2 C. EPI'THYMCM (Lin. spec. 180.) flowers fascicled, sessile; 

 corollas 5-cleft ; epipetalous scales crescent-shaped, crenated ; 

 stigmas acute. G- H. Native throughout Europe ; plentiful 

 in Britain, in cultivated fields, particularly among pulse ; also on 

 furze, flax, thyme, nettles, heath, lavender, spurge, hops, grass, 

 &c. Smith, engl. bot. 378. Oed. fl. dan. t. 427. Plenck, 

 off", t. 71. C. Europae'a, Smith, engl. bot. t. 55. Lam. ill. t. 

 88. C. Europae'a, ft, Lin. spec. p. 180. C. filiformis, ft, 

 Lam. fl. fr. 2. p. 307. C. minor, D. C. fl. fr. no. 2755. Epi- 

 thymum, Cam. epit. 983. Col. ecphr. 2. p. 23. Stems filiform. 

 Much smaller in every part than C. Europe&a. Flowers more 

 crowded, frequently 4-cleft and tetrandrous. Calyx red. Co- 

 rolla white, bell-shaped, with acute segments. The name is 

 from 7ri, epi, upon, and Thymus, thyme ; so called from being 

 parasitical on thyme. 



Epithymum or Lesser Dodder. Fl. July, Oct. Britain. 

 PI. parasitical. 



3 C. LUPCLIFORMIS (Krok. fl. siles. no. 251. t. 36.) flowers 

 racemose, not conglomerate or pedunculate ; stems lupuliform, 

 rough, dotted. 0. H. Native of Bohemia and Silesia. C. 

 monogynum, Pohl. tent. fl. boh. p. 156. Schultes, oestr. fl. ed. 

 2d. no. 726. 



I 



