GARDEN BOTANY. lix 



10. Calendula officinalis, COMMON MARIGOLD ; a familiar low annual, 

 with simple alternate leaves, a leafy involucre, yellow flowers with many rays, 

 the disk-flowers sterile ; found in all country gardens. 



11. Chrysanthemum, including Pyrethrum, &c. The summer-flowering 

 CHRYSANTHEMUM of country gardens is 



C. COronarium, an annual, with twice-pinnately-parted and sessile 

 alternate leaves, solitary heads with a very scarious involucre, and yellow 

 flowers, or the rays varying to white. 



C. Parthenium, FEVERFEW, perennial, with corymbed heads and 

 white rays. Matricaria Parthenium, Man. p. 226. 



C. Indicum, a perennial with rather woody stems and ovate pinnatifid 

 and incised leaves, is the parent of the autumn-flowering CHINESE CHRYSAN- 

 THEMUMS, of various colors. 



12. Anthemis, Man. p. 225. CHAMOMILE heads of the shops come from 

 A. nobilis, COMMON CHAMOMILE, a low creeping herb, with aromatic 



scent, the leaves dissected into setaceous divisions ; heads solitary ; white rays. 



A. tinctoria, YELLOW C., is an erect rather tall perennial, the leaves 

 not so finely cut ; the heads larger ; rays yellow. 



13. Achillea Ptarmica (Man. p. 226), in gardens, both semi-double, and 

 with all the flowers changed into white rays. 



A. Millefolium, YARROW (Man. p. 226) ; a rose-colored variety is 

 rather common in gardens. 



14. Tanacetum vulgare, COMMON TANSY, a familiar strong-scented 

 and bitter herb ; see Man. p. 227. 



T. Balsamita, COSTMARY, a low perennial, with a pleasant balsamic 

 scent, oblong and toothed leaves, and corymbed flower-heads. 



15. Artemisia, Man. p. 227, where COMMON WORMWOOD and the MUG- 

 WORT are described. Besides, the gardens have 



A. Dracunculus, TARRAGON. Perennial, green and glabrous ; stem- 

 leaves linear-lanceolate, mostly entire. 



A. Abrotanum, SOUTHERNWOOD. Shrubby ; leaves once or twice 

 pinnate, capillary, pleasant-scented. 



16. Senecio, Man. p. 230. The following species are commonly cultivated. 



S. cruentUS, from the Canaries, is the original of manifold arieties of 

 the common Cineraria of the greenhouses, a perennial, with very veiny leaves, 

 downy underneath, the lower ones round-cordate and angled or obscurely 

 lobed, their petiole winged, at least at the base, which is auricled and clasping, 

 the upper leaves sessile, the base partly clasping; heads corymbed, with nu- 

 merous ray-flowers, purple, crimson, blue, white, &c. 



S. populifolius resembles the last, but is less common, the stem a little 

 woody ; leaves whiter beneath, with nearly naked petioles ; ray-flowers fewer, 

 yellow or white. 



S. Cineraria, an old-fashioned house-plant, ash-white all over (whence 

 the name Cineraria) with a woolly coating ; leaves deeply pinnatifid; heads 

 corymbed, with ray flowers, yellow. 



S. COCCineus, TASSEL-FLOWER (Emilia sagittata, DC.) : a common 

 garden annual, with the stem-leaves sagittate and clasping and minutely 

 toothed, the stem naked above, and bearing a corymb of a few heads of orange- 

 red flowers, without any rays. 



