254 COMPOSITE FAMILY. 



58. OTHONNOPSIS. (Like 0<Ao?iHa, an allied genus.) 21 (P- 225.) 



0. cheirfd/ia, Jaub. & Spach. Succulent prostrate herb, known in 

 this country by the form grown in window baskets as Othonna crassi- 

 f6lia. Leaves alternate and cylindrical ; small terminal heads of yellow 

 flowers on long and slender pedicels. A pretty hanging-plant. N. Africa. 



59. EMILIA, TASSEL FLOWER. (Name unexplained.) 

 Cultivated under the name of CacXlia. (p. 224.) 



£. sonchifblia, DC. Cult, as a summer annual, from the Old World 

 tropics ; very smooth or a little bristly, pale or glaucous, l°-2° high, with 

 root leaves obovate and petioled ; stem-leaves sagittate and partly clasp- 

 ing, and rather showy orange-red heads in a naked corymb, in summer. 



60. C AC ALIA, INDIAN PLANTAIN. (Ancient name.) Natives of 

 rich soil. 11 (p. 224.) 



* Eecepiacle flat ; involucre with some bracts at the base. 



C. Buav^olens, Linn. 3°-5° high, with halberd-shaped serrate leaves 

 on winged petioles, and rather large heads of 10-80 flowers. Conn, to 

 la., and S. 



* * Beceptacle pointed in the middle ; involucre 5-flowered, of 5 scales, 



naked. 



C. renif6rmis, Muhl. N. J. to 111. and S. along the mountains ; 4°-9'^ 

 high, with large and green repand-toothed petioled leaves, the lower 

 kidney-shaped, the upper fan-shaped. 



C. atriplicif61ia, Linn. Pale or glaucous, with coarsely toothed or 

 angled leaves, the lower almost kidney-shaped, the upper wedge-shaped. 

 N. Y., W. and S. 



C. tuber6sa, Nutt. Wet prairies, Ohio, W. ; stem angled ; leaves green, 

 thickish, o-7-nerved, mostly entire, the lower lance-oval and tapering 

 into long petioles, the upper short-petioled. Flowers in early summer. 



61. ERECHTITES, FIREWEED. (An ancient name.) ® (p. 223.) 



E. hieracif61ia, Raf. One of the plants called Fireweed, because 

 springing up where woods have been cleared and ground burned over, 

 especially N. ; very rank and coai-se herb, with strong odor, often hairj-, 

 l°-5° high, with lanceolate or oblong cut-toothed leaves, the upper with 

 auricled clasping base, and panicled or corymbed heads of dull white 

 flowers, in fruit with copious white and very soft downy pappus. 



62. CALENDULA, MARIGOLD. (Latin calendce or calends ; flower- 

 ing through the months.) (p. 226.) 



C. officinalis, Linn. Pot Marigold. Of the Old World ; cult, in 

 country garden.s, chiefly fur the showy flowers, but the heads also some- 

 times dried and u.sed in culinary preparations ; 1° high, spreading, with 

 green and succulent oblong and entire sessile leaves, rather unpleasantly 

 scented, and large head of yellow flowers, produced all summer, some- 

 times nearly full-double, most of the corollas being strap-shaped, (j) 



63. XERANTHEMUM, EVERLASTING, IMMORTELLE. (Greek: 

 dry floioer.) (p. 228.) 



X. dnnuum, Linn. Leaves linear or oblong, revolute ; heads purplish, 

 the scales dry and persistent and very glabrous ; 2°-3°. S. Eu. 



