253 



There are several other species of the perennial sort that may be 

 cultivated. 



The first has an annual root: the stem single or branched, from 

 five or six to ten or fourteen feet in height, and in hot climates 

 twenty or more; when vigorous, the size of a man's arm: the leaves 

 are alternate, a span or a span and a half in length, and almost as 

 much in breadth, rough, serrate, acuminate, hanging down at the 

 end, on long petioles: the flower single (sometimes several), nodding, 

 a foot or more in diameter. It is a native of Mexico, flowering from 

 June to October. Martyn observes, that as to its turning with the 

 sun, it is a vulgar error; Gerarde could never observe it; and he has 

 seen four flowers on the same stem pointing to the four cardinal 

 points. 



There are varieties with double flowers, deep yellow, and sulphur- 

 coloured. 



The second species is perhaps only a variety of the first, though 

 constant; but the leaves are convex above in the disk, and of a 

 darker green. The peduncles are less thickened at top, or rather of 

 an equal thickness every where, whence the flowers nod less. The 

 scales of the calyx, except the inmost row, grow out into petioled 

 pendulous leaflets. It grows only from eighteen inches to three feet 

 in height. It probably comes from Mexico or Peru. 



The third has the stem and peduncles scabrous: the leaves cor- 

 date-ovate: the calyxes loosely imbricate, neither squarrose nor 

 drooping, consisting of forty to fifty scales: the stems many, upright, 

 from five or six feet to eight or nine in height, branching, the stem 

 and each branch terminated by a flower, the principal one sometimes 

 nine or ten inches in diameter, the lateral ones gradually smaller: 

 the leaves some opposite, others alternate. There is a constant 

 succession of flowers from July to November. It is a native of 

 Virginia. 



In the fourth species the stems are several, rough, hairy, streaked, 

 from eight, ten, or twelve to sixteen feet in height, the size of ,a 

 child's arm: the leaves alternate, light green, rough, pointed, eight 





