EVENING PRIMROSE FAMILY 201 



b. Leaves wavy-toothed or entire, rarely pinnati- 

 fid; stems woody, bark shredding; calyx 

 tube smooth inside A. pdllida 



CHAMAENERIUM Adanson 1763 FIREWEED 

 (Gr. chamae, on the ground, nerion, rose-bay) 



PL 32, fig. 1. 



Sepals 4, united into a tube, not extending beyond the ovary, the 4 

 lobes falling off, petals 4, red-purple, somewhat irregular in form or posi- 

 tion, stamens 8, ovary 4-celled, stigma 4-cleft, capsule 4-celled, 4-angled, 

 elongated ; flowers in terminal racemes ; leaves alternate, entire or wavy ; 

 perennial. 



1. Stems 1-5 ft. high; leaves lanceolate, short-peti- 



oled, 2-8 in. long; bracts small; style hairy at 



base C. angustifolium 



2. Stems .5-1.5 ft. high; leaves mostly sessile, lance- 



ovate, 1-2 in. long; bracts leaf -like; style 



smooth C. latifolium 



CHYLISMA Nuttall 1840 

 (Gr. chylisma, the juice of plants) 



Sepals 4, united into a funnel form or obconic calyx, petals 4, yellow, 

 stamens 8, unequal, stigma globose, capsule linear to club-shaped; flowers 

 in terminal racemes ; leaves simple or pinnate ; annual. 

 Flower stem 2-4 in. high; leaves ovoid, entire; flow- 

 ers 4-5 mm. long C. scapoidea 



CIRCAEA Linne 1753 ENCHANTER'S NIGHTSHADE 



(Named for the enchantress Circe) 



Sepals 2, united into a hairy tube extending but slightly beyond the 

 ovary, petals 2, white, stamens 2, alternating with the petals, ovary 1-2- 

 celled, ovules 1 in each cavity, stigma globoid, fruit obovoid, not splitting, 

 covered with hooked bristly hairs ; flowers in terminal and lateral racemes ; 

 leaves opposite, simple, toothed; perennial. 



1. Stems 4-8 in. high; leaves coarsely toothed and 



heart-shaped at base C. alpina 



2. Stems 1-2 ft. high; leaves finely wavy-toothed, 



round or truncate at base C. pacifica 



EPILOBIUM Linne 1753 WILLOW HERB 

 (Gr. epi, upon, lobwn,' little pod, from the corolla) 

 Sepals 4, united into a calyx tube extending beyond the ovary, petals 

 4, white to pink or rose-purple, separate, stamens 8, ovary 4-celled, ovules 



