200 LOOSESTRIFE ORDER 



(2) Flowers yellow, at least at first 



(a) Plant stemmed; leaves entire or toothed 



x. Petals less than 1 cm. long; seeds hairy Epilobium 

 y. Petals 1-4 cm. long; seeds not hairy Onagra 



(b) Plants stemless ; leaves pinnatifid Lavauxia 

 b. Stigma entire or merely 4-toothed 



( 1) Stigma disk-like ; flowers yellow 



(a) Calyx-tube several times longer than the 



ovary Galpinsia 



(b) Calyx-tube not longer than the ovary Meriolix 



(2) Stigma globose or club-shaped 



(a) Calyx-tube not extending above the 



ovary; flowers white to rose Gayophytum 



(b) Calyx- tube extending above the ovary 



x. Seeds hairy; flowers white to rose Epilobium 

 y. Seeds not hairy ; flowers mostly yellow 

 (x) Calyx-tube longer than the ovary; 



capsule 4-winged ; flowers yellow Taraxia ^ 



(y) Calyx-tube shorter than the ovary ; 

 capsule not winged 

 m. Capsule linear, sessile ; flowers 



yellow, white or pink Sphaerostigma 



n. Capsule club-shaped, stalked ; flow- 

 ers yellow Chylisma 

 2. Petals 2, white ; fruit bristly-hairy Circaea 



Anogra Spach 1835 Anogra 



(An anagram of Onagra) 



PL 31, fig. 15. 



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

 4, white or pink, separate, stamens 8, equal, ovary 4-celled, linear, stigma 

 4-cleft, capsule oblong to linear, 4-angled, •splitting ; flowers solitary, axil- 

 lary, opening in the daytime, buds, drooping ; leaves alternate, pinnatifid; 

 annual or perennial. 



1. Corolla 3.5-8 cm. wide; tips of the sepals united 



with each other in the bud; annual A. albicaiilis 



2. Corolla 2-3.5 cm. wide ; the fine tips of the sepals 



free from each other in the bud ; perennial 

 a. Leaves deeply pinnatifid ; stems little woody, 

 and bark not shredding ; calyx tube hairy in- 

 side A. coronopifolia 



