PLATE CIX. 



CHRYSANTHEMUM TRICOLOR. 



Three-coloured Corn-Mary gold. 



CLASS XIX. ORDER II. 



SYNGENESIS, POLYGAMIC SUPERFLUA. Tips united. Superfluous Pointals. 



GENERIC CHARACTER. 



Empalement. Common, hemifpherical, tiled; 

 fcales lying dole upon each other; the in- 

 ner ones becoming gradually larger, lkinny 

 at the edge; the innermoll terminating in a 



Calyx. Communis haemifphaericus, imbricatus ; 

 fquamis ar&e incumbentibus; interioribus 

 per gradus majoribus, margine fcariofis; in- 

 timis terminatis fquama fcariofa. 



Corolla. Compofita radiata. Corullulae her- 

 maphroditic tubulofae, numerofa:, in difco; 

 femineae duodenis plures, in radio. 



Propria hermaphroditis infundibuliformis, 

 quinquefida, patula, longitudine calycis. 



Femineis ligulata, oblonga, tridentata. 



Stamina. Hermaphroditis filamenta quinque, 

 capillaria, breviflima. Anthera cylindracea, 

 tubulofa, corolla fere brevior. 



Pistillum. Hermaphroditis, germen ovatum. 

 Stylus filiformis, ftaminibus longior. Stig- 

 mata duo, revoluta. 



Femineis germen ovatum. Stylus filiformis, 

 cum hermaphroditis aequalis. Stigmata duo, 

 obtufa, revoluta. 



Pericarpium nullum. Calyx immutatus. 

 Semina. Hermaphroditis folitaria, oblonga. 



Pappus nullus. 



Femineis (imillima hermaphroditis. 



Receptaculum nudum, pundtatum, convexum. 



SPECIFIC 



Chryfanthemum crithmi foliis; fquamis exteri- 

 oribus calycis carinatis; floribus lolitariis, 

 tricoloratis. 



lkinny fubftance. 



Blossom. Compound radiate. Florets with 

 chives and pointals, of the centre, tubular 

 and numerous; thole with only pointals, of 

 the ray, twelve or more. 

 Individuals with chives and pointals, fun- 

 nel -fhaped, five- cleft, open, the length 

 of the cup. 



Individuals with only pointals, ligulate, ob- 

 long, with three teeth. 



Chives. Thofe with chives and pointals have 

 five, hair like, very fhort threads. Tips cy- 

 lindrical and tubular, fcarcely fliorter 

 than the bloffom. 



Pointal. Seed-bud, where there are chives and 

 pointals egg- fhaped. Shaft thread-fhaped, 

 longer than the chives. Summits two, rolled 

 back. 



Seed-bud where there are only pointals 

 egg-lhaped. Shaft thread-fhaped the length 

 of thofe where there are chives and poin- 

 tals Summits two, blunt and rolled back. 



Seed-vessel none. Cup unchanged. 



Seeds of thofe with chives and pointals folitary, 

 oblong. Feather none. 

 Thole where there are only pointals like 

 the others. 



Receptacle naked, dotted, and convex. 



CHARACTER. 



Corn-Marygold with famphire-like leaves; the 

 outer fcales of the cup keel-fhaped; the 

 flowers grow folitary and are three-coloured. 



REFERENCE TO THE PLATE. 



1. An outer Scale of the Empalement. 



2. An inner Scale of the Empalement. 



3. A female Floret of the Circumference, with its Pointal. 



4. An hermaphrodite Floret of the Center. 



5. The above, magnified. 



6. The Chives of an hermaphrodite Floret, magnified. 



7. The Pointal of an hermaphrodite Floret, magnified. 



8. The Receptacle, natural fize. 



Mr. James Donn, Curator of the Botanic Gardens, Cambridge, through whofe medium we poflefs this 

 new fpecies of Cryfanthemum, informs us, in his catalogue for 1800, that it is a native of the coaft of 

 Barbary, and from whence it was firft received in 1/97. The C. Tricolor is but of annual growth, 

 fhould be railed on gentle heat about March, and may be either kept in pots, or planted in the open 

 borders, where it will flower from July till October; but much of the brilliancy of the flowers will be 

 loft, if treated in the laft manner, as the leaft wet, or even the dew, will affeft their colours. The 

 feeds are perfected in lefs than a week, after the decay of the flower, and are produced in abundance. 

 Our figure was taken from a plant in the Hammerfmith nurfery, which had been raifed from feed, 

 communicated by Mr. Donn to Meflrs. Lee and Kennedy. 



