3io 



CICHORIACEAE. 



Vol. III. 



About 45 species, natives of the Old World. Type species: Apargia incana Scop. 



Scape scaly bracted, mostly branched; pappus of plumose bristles only. i. A. autumnalis. 

 bractless, monocephalous ; pappus of two kinds. 



Pappus of marginal and inner flowers dissimilar. 2. A. nudicaulis. 



Pappus of all flowers alike. 3. A.kispida. 



i. Apargia autumnale (L.) llol'fm. Fall 



Dandelion. Autumnal Hawkbit. Lion's- 



tooth. Fig. 4051. 



Leontodon autumnale L. Sp. PI. 798. 1753. 



Apargia autumnalis Hoffm. Deutsch. Fl. Ed. 2, 2: 

 1 13. 1800. 



Plant glabrous or nearly so, or the involucres 

 and ends of peduncles black-pubescent; scape 

 slender, usually branched and scaly, 6'-2 high. 

 Leaves narrowly oblong to linear-lanceolate, pin- 

 natifid into narrow lobes, or some of them coarsely 

 dentate, 3' -8' long, 3" 12" wide, acuminate at the 

 apex, narrowed into rather short petioles ; heads 

 several, rarely solitary, about 12"-is" broad; in- 

 volucre oblong; achenes tapering into a short 

 beak, or the outer ones nearly terete; pappus- 

 bristles all plumose. 



In fields and along roadsides, Newfoundland to 

 Ontario, New Jersey, Pennsylvania and Michigan. 

 Naturalized from Europe. Native also of Asia. 

 June Nov. Dog-dandelion. Arnica-bud. 



2. Apargia nudicaulis ( L. ) Britton. Rough 

 or Hairy Hawkbit. Fig. 4052. 



Crepis nudicaulis L. Sp. PI. 805. 1753. 

 Leontodon hirtum L. Sp. PI. Ed. 2, 1123. 1763. 

 Leontodon nudicaule Banks; Lowe, Trans. Camb. 

 Phil. Soc. 4: 28. 1831. 



Plant more or less hirsute ; scape simple, slender, 

 4'-i2' high, minutely scaly, or naked. Leaves 

 linear-oblong to narrowly spatulate, acute or 

 obtuse, not acuminate, nearly entire, coarsely 

 sinuate-dentate or sometimes pinnatifid, 2'-5 - long, 

 3"-8" wide, narrowed into petioles ; head solitary 

 at the end of the scape, 5"-io" broad; involucre 

 canescent or pubescent ; outer achenes with a 

 pappus of simple narrow scales, the inner ones 

 with a pappus of plumose bristles. 



In ballast and waste places, Connecticut to New 

 Jersey and Pennsylvania, and on Vancouver Island. 

 Adventive from Europe. June-Oct. 



3. Apargia hispida (L.) Willd. Common 

 Hawkbit. Fig. 4053. 



Leontodon hispidns L. Sp. PI. 799. 1753. 



Leontodon hostile L. Sp. PI. Ed. 2, 1123. 1763. 



A. hispida Willd. Sp. PI. 3: 1552. 1S04. 



Glabrous, or bristly-hispid. Scape stout or slender, 

 4'-2S' high, bractless, monocephalous; head nodding 

 before flowering; leaves 2'-6' long, oblong-lanceolate 

 in outline, coarsely and sharply dentate or subpin- 

 natifid ; head I*' broad or less; involucre 6" -7" high; 

 pappus an outer series of short and an inner series 

 of long plumose bristles, alike in all the flowers. 



Fields and waste grounds, Rhode Island to Pennsyl- 

 vania, Ontario and Ohio. July-Sept. 



