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2. Holozonia. —Involucre 1-seriate, each 
scale completely embracing aray akene. 
Pappus of the ray hyaline. 
3. Lagophylla.—Ray flowers 5, cuneiform, 
3-lobed. Involucre of 5 scales, each 
completely enclosing a ray akene. Re- 
ceptacle flat. Palew 5, between disc 
and ray. Pappus 0. 
4. Blennosperma.—Scales of the involucre 
l-seriate, united at the base, not em- 
bracing the akene. Pappus 0. 
5. Artemisia.—Involucre imbricate, scar- 
ious. Flowers of the ray slender, dentate. 
6. Soliva.—Flowers of the ray o-seriate, 
without corolla. Pappus 0. 
7. Nardosmia.—Pappus pilose. 
B. Receptacle villous. 
1. Artemisia. 
C. Receptacle paleaceous. 
a. Arthers obtuse or sagittate at their 
base, but not calcurate. 
1. Lagophylla. — Ray flowers 5, cuneiform, 
: 3-lobed. Involucre of 5 scales, each 
completely enclosing a ray akene. Re- 
ceptacle flat. Palew 5, between disc and 
ray. Pappus 0. 
9. Holozonia. — Involucre 1-seriate, each 
scale embracing completely a ray akene. 
Pappus of the ray hyaline. 
