96 GENTIAN ORDER 



capsule oblong-ovoid, or spindle-shaped, 2-valved ; flowers in cymes or 

 spikes ; leaves sessile, or clasping the stem ; annual or biennial. 

 Stems 4-12 in. high ; leaves oblong to lance-linear E. arizonica 







EUSTOMA Salisbury 1806 EUSTOMA 



(Gr. en-, good, true, stonia, mouth, from the open corolla) 



PL 18, fig. 5. 



Sepals 5-6, united, petals 5-6, blue, purple or white, united into a 

 broad, bell-shaped corolla, stamens 5-6, ovary 1 -celled, style slender, stigma 

 2-cleft, capsule oblong or ovoid, 2-valved ; flowers long-stalked, axillary and 

 terminal, solitary or in panicles ; leaves opposite, sessile or clasping ; annual. 

 Stems 4-15 in. high; leaves oblong to elliptic, 1-2 in. 

 long E. Andrewsii 



FRASERA Walter 1788 FRASERA, GREEN GENTIAN 



(Named for Fraser, a botanical collector) 



PL 18, fig. 3. 



Sepals 4, united, petals 4, greenish, each bearing 1-2 fringed glands, 

 united into a saucer-shaped corolla, stamens 4, ovary ovoid, 1 -celled, style 

 slender or short, but distinct, stigma 2-lobed or nearly entire, capsule ovoid, 

 leathery, somewhat compressed, 2-valved ; flowers in terminal open or 

 crowded panicles ; leaves opposite or whorled ; perennial or biennial. 

 Stems 1-5 ft. high ; leaves linear to obovate, 4-12 in. 

 long F. speciosa 



GENTIANA Linne 1753 GENTIAN 



(Named for Gentius, king of Illyria) 



PL 18, figs. 1-2, 4, 6. 



Sepals 4-7 (usually 5), united, petals 4-7, blue, purple, yellow or 

 white, united into a tube-, bell-, salver-, or funnel-shaped corolla, stamens 

 8-14, on the corolla, included, ovary 1-celled, style short or none, stigma 

 2-cleft, capsule 2-valved; flowers solitary or clustered, terminal or axillary; 

 leaves opposite (rarely whorled) entire, sessile or short-petioled ; perennial. 

 1. Corolla with a shorter lobe or fold between the 



main lobes 

 a. Plants low, .5-3 in. high; flowers small, .5-1 



cm. long; leaves tiny 

 (1) Flowers white or whitish; fruit stalked; 



at 7-10000 ft. G. humilis 



