GKNTIANACE^ 79 



2. EKYIHU^A, Kenealm. 



Corolla-lobea 1) to 2^ lines long; tube much longer: anthers oblong 1, 2, 8 



Corolla-lobes 3i to 6 lines long: tube a little longer; anthers linear 4, 5 



floribimda, Benth. Pedicels short or none: corolla-lobes 2 lines long or less. 



Muhlenbergii, Griseb. Pedicels short or 2-bracted; corolla-lobes obtuse. 



Douglasii, Gr. Pedicels slender: corolla-lobes obtuse: seeds globular. 



trichantlia, Griseb. Flowers often corymbose, some sessile, lobes acute. 



venusta, Gr. Flowers pediceled: corolla-lobes obtuse, tube yellowish. 



3. GENTIANA, Tbumefort. 



a. Corolla without plaited folds or appendages between the lobes. 



Flowers solitary on terminal peduncle, 12 to 18 lines long 1, 2 



Flowers several, smaller, 5 to 7 lines long: calyx 5-clef t 3 



b. Corolla with folds between the (usually 5) lobes which are prolonged into thin teeth or 

 accessory lobes; stigmas distinct: pod on a stipe. 



Annual: anthers introrse: stem leaves ovate-cordate 2 to 4 lines long 4 



Perennial: anthers more or less erfcrorse: usually a pair of bracts or leaves under the short- 

 pedunoled or sessile flower. 

 Stems several from one cande^, 1-2-flowered: stem-leaves connate-sheathing. 



Stems I-flowered, 2 to 4 inches high: radical leaves rosulate 6 



Stems longer: upper pair of leaves enclosing the flower 6> 7 



Stems many-leaved: style manifest, corolla blue or bluish. 



Corolla-lobes broad, narrowed at base; accessory lobes entire 8, 9 



Corolla-lobes not narrowed at base: accessory lobes laoiniate 10, 11 



1. G. serrata, Gunner, var. holopeta^i, Gr. Calyx angular, lobes keeled. 



2. G. simplex, Gr. Leaves linear-oblong, 3 to 9 lines long: calyx hardly angular. 



3. G. Amarella, Ij. var. acuta, Engebn. Stem acute-angled: capsule sessile. 

 i. G. Douglasiana, Bong. Cymosely branched: radical leaves rosulate. 



5. G. JTewberryi, Gr. Kadical leaves obovate to spatulate: corrolla 18 lines long, 



6. G. setigera, Gr. Stems decumbent: 1 or 3 bristles between corolla-lobes. 



7. G. calycosa, Griseb. Stems erect: accessory corolla-tubes laciniate or 2-cleft. 



8. G. Menziesii, Griseb. Stems slenSer, a ft. long or less; leaves IJ in. long or lw» 



9. G. sceptmnx, Griseb. Stem 2 to 4 ft. high: leaves broader, 1 J to 3 in. long. 



10. G. Oregana, Engelm. Corolla ovur an inch long, lubes roundish. 



11. G. afflnis, Griseb, Corolla an inch long or less, lobes ovate, acute. 



4. ERASEKA. Walter. 



Stout, 2 to 5 ft. high: leaves not white margined 1,3 



Gray-green, 1 to 3 ft. High: leaves with cartilaginous white margins. 3, 4, & 



1. F. tliyrsifl.ora. Hook. Leaves in"2's or 3'b: a gland on each corolla-lobe. 



