186 ORDER 70. COMPOSITES. 



each with a $ fl. in its axil. Gyp. terete, the central with a hairy pappus. 

 Herbs canescent-downy. July, Aug. . 



F. Germanica L. Lvs. erect, crowded, linear-lanceolate ; hds. in capitate clusters, 

 which are successively proliferous ; scales cuspid., straw-color. Fields, E. 610'. 



81. AMMOBIUM, Br. Invol. imbricated, sc. w T ith broad, scarious, 

 spreading tips. Recep. broad-conic, chaffy. Fls. all tubular, . Cyp. 4- 

 angled, 4-toothed. if Australia. Stems winged with the decurrent leaves. 



A. ALATUM. (T) In gardens. 1 2f. Villous-canescent. Root Ivs. oblong-petioled. In- 

 volucre white, flowers yellow. Summer. 



82. RHODANTHB, Lindl. Involucre top-shaped, imbricate, sc. dry, 

 ovate, acute, the inner radiate-spreading. Recep. naked. Fls. all tubular, 

 5-toothed, 2 . Cyp. woolly. Pap. of plumous bristles. @ Australia. 

 R. MANGLESII. Lvs. oblong, clasping, entire; hds. large, fadeless, rose-colored, varie- 

 gated. A splendid " Everlasting," with many beautiful varieties. Hds. 12' diam. 



83. HELICHRYSUM, Cass. IMMORTAL FLOWER. Invol. imbricate, 

 with scarious, colored scales. Recep. flat, naked of pales. Pap. a row of 

 bristles, often cohering. Herbs or shrubs, chiefly S. African. Lvs. alter- 

 nate. A vast genus of 200 species. 



1 H. BRACTEATUM. Branching, puberulent ; Ivs. lanceolate to linear, repand, acuminate ; 



hds. terminal, bracted at base ; outer scales brownish, the inner radiant, ylw. to wh. 



2 H. MACRANTHUM. Subsimple, scabrous ; Ivs. ppatnlate to lance-oblong, obtuse, en 



tire ; hd. 1 or few, large, white outside, roseate within ; inner scales radiant. (I) if . 

 /3. COMPOSITUM. Hds. composite (or double), purple, carmine, yellow, white. 

 y. ATROSANGUINEUM. Hds. composite, with deep crimson scales and pappus. 18'. 



84. XERANTHEMUM, Toum. Hds. discoid, heterogamous. Invol. 

 hemispherical, imbricated, diy, with radiant, colored scales. Recep. with 

 3-toothed, diy pales. Pap. chaffy-bristly. @ S. Eur. Lvs. entire. Hds. 

 white or rose-colored. 



X. RADIATUM. Eternal Flower. Erect, branched. Lvs. linear-oblong ; hds. 1 2' diam. 



85. ERECHTITES, Raf. FIRE-WEED. Fls. all tubular, those of the 

 margin $ , of the disk $ . Invol. cylindrical, simple, slightly calyculate. 

 Recep. naked. Pap. of numerous, fine, capillary bristles. @ Lvs. simple, 

 alternate. Fls. corymbous, whitish. A rank weed. 



E. hleraclfoltus Raf. St. virgate, paniculate ; Ivs. oblong, acute, clasping, unequally 

 and deeply cut- toothed ; invol. smooth; fr. hairy. Burnt grounds, &c. 3f. Aug. + . 



86. C AC ALIA, L. TASSEL-FLOWER. Fls. all tubular, $ . Involucre 

 cylindric, oblong, in one series, often calyculate with small scales at the 

 base. Recep. not chaffy. Pap. capillary, scabrous. (i)2. Smooth. Lvs. 

 alternate. Heads of flowers corymbed, mostly cyanic. 



Scaks of the invol. cohering, about 12. Flowers GO 80. scarlet No. S 



Sca.es of the invol. distinct, about 12. Flowers 2030. white No. 1 



a 5 only. Fls. 5.* Lve. cordate or lobed Nos. 24 



b Lvs. never cordate Nos. 5 "3 



