254 COMPOSITE FAMILY. 



58. OTHONNOPSIS. (Like 0</joH)m, an allied genus.) H (p. 225.) 



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

 this country by the form grown in window baskets as Uthoxna cu.vssi- 

 1'-6lia. 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. CACALIA, INDIAN PLANTAIN. (Ancient name.) Natives of 

 rich soil. 2/ (p. 224.) 



* Receptacle flat ; involucre icith some bracts at the base. 



C. suavfeolens, Linn. 3°-5° high, with h alb erd-.sh aped serrate leaves 

 on winged petioles, and rather large heads of 10-;J0 flowers. Conn, to 

 la., and S. 



* * Receptacle pointed in the middle ; involucre f)-floicered, of 5 scales, 

 naked. 



C. renifdrmis, IMuhl. 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. atriplicif6lia, Linn. Pale or glaucous, with coarsely toothed or 

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

 N. Y., W. and S. 



C. tuber 6sa, Nutt. Wet prairie.s, Ohio, W. ; stem angled ; leaves green, 

 thickish, 5-7-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 coarse herb, with strong odor, often hairy, 

 lo_50 high, with lanceolate or- oblong cut-toothed leaves, the upper with 

 auricled clasping base, ^nd 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 Mauigold. Of the Old World ; cult, in 

 country gardens, cliiefly for the showy flowers, but the heads also some- 

 tinus dried and used 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. 



63. XERANTHEMUM, EVERLASTING, IMMORTELLE. (Greek: 

 dryflover.) (p. 223.) 



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

 the scales dry and persistent and vers' glabrous ; 2^-3°. S. Eu. 



