PLATE CLXXXIX. 



ZINNIA VERTICILLATA. 



Double Zhmia. 



CLASS XIX. ORDER IL 

 SYNGENESIA POLYGAMIA SUPERFLUA. Tips united. Superfluous Pointals. 



ESSENTIAL GENERIC CHARACTER. 



Eeceptaculum paleaceurn. Pappus aiiftis 2 erec- 

 tis. Calyx ovato-cyliiidricus, inibiicatus. 

 Flofculi radii 5, periiflentes, integri. 



Receptacle chaffy. Feather with 2iiprighta\vn5. 

 Einpalement cylindrlcal-egg-fliaped, and 

 tiled. Florets of the ray 5, remaining and 

 entire. 



See Zinnia violacea. PI. LV, Vol. I. 



SPECIFIC CHARACTER. 



Zinnia foliis verticillatis, feflilibus ; floribiis 

 peduiiculatis ; tlolculi radii fa;pe tiia feries. 



Zinnia with leaves growing in whorls without 

 foot-ilalks clofe to the ftem; flowers with 

 foot-ftalks; the florets of the ray often 

 three rows. 



REFERENCE TO THE PLATE. 



1. An outer female Floret of the ray, the I'eed attached, a little larger than nature. 



2. An inner hermaphrodite Floret of the diik, with its feed and Ikinny chaff, magnified. 



3. The Chives, Pointal, and Seed of an hermaphrodite Floret, divefled of its corolla, magnified. 



The Englifh fpecific title to this plant, fhould feem to imply, that the flowers are fuch, as fliould not 

 come into our arrangement; but, as the charafter is not conliant in all the flowers, even on the fame 

 plant, it cannot be confidered but as a fpecific charafter in this particular fpecies, though the name has 

 its proper force, in conlradiftinSion to its congeners, in our language. It is a native of Mexico, South 

 America; and was introduced to our gardens about the year 1 789, by Mons' Richard, from the Paris 

 gardens, at the fame lime with the Virgilia; a moll beautiful annual, of the habit of Arttotis, now 

 loft in both countries from the ditKculty of procuring ripened feeds. It is to be railed in the fame 

 manner as the other fpecies, on a gentle hot-bed, in March, and planted out the b'-ginning of May. 

 Th" flowers make their appearance about the beginning of Auguft, and continue, in fuccellion, till they 

 are deftroyed by the frotl. To be certain of the feed, the heads muft be taken from the plant, whilft 

 they appear yet frefli; as tlie petals are perfiflent, and have not the appearance of entire decay, though 

 the feed is nearly ripe; for if the receptacle once begins to rot, (which it is very fubjeft to,) the feeds 

 are immediately contaminated and fpoilt. Our figure was taken, this year, at the Hammerfmilh Nur- 

 fery, where, it was grown firft in this kingdom. 



