(94) 



Tribe IV. Heli anther. 

 Anthers without tails. Eeceptacle paleace- 

 ous. Pappus not capillary. 



a. Palece persistent. 



25. Balsamorrhiza Hook. Nutt. 



Superflua. Head go -flowered. Eay -flowers 

 lanceolate. Receptacle flat, paleaceous. Pap- 

 pus 0. — U Flowers yellow. 



1. B. DELTOIDEA Nutt. Leaves with cor- 

 date base, entire to serrate. — Mies. Spring. 



2. B. Hookeri. Nutt. Leaves pinnately 

 or bipinnately parted. — Hillsides near Lake 

 Chabot. Spring. 



26. Wyethia Nutt. 

 Superflua. Head oc -flowered; ray-flowers 

 lanceolate. Scales of the involucre 2 — 3-seri- 

 ate: external foliaceous; internal paleaceous. 

 Receptacle flat, paleaceous. Pappus cup-shaped 

 or aristate. — IX. Flowers yellow. 



1. W. HELENioiDES Nutt. luvolucre folia- 

 ceous, spreading; pappus chaffy, not aristate; 

 young plant tomentose; akenes pubescent 

 towards the apex. — Dry hillsides. Mission 

 Dolores. Spring. 



2. W. GLABRA Gray. Involucre foliaceous, 

 spreading; pappus chaffy, not aristate; plant 

 glabrous, glutinous; akenes glabrous. — Tamal- 

 pais. Spring. 



