126 



ON AG RACE.fi. 



Annual: stems round: leaves mostly alternate: petals obcordate 12, 13, 14 



1. E. spicatum, Lam. Simple stem often 5 or 6 ft. high: flowers spicate. 



2. E. latifolium, Linn. Shorter, leas erect, often branching: style glabrous. 



3. E. obc or datum, Gr. Petals obcordate, spreading, rose-color. Alpine. 



4. E. luteum, Pursh. Oregon to Alaska. 



5. E. Watsoni, Barbey. Hoary-pubescent, branching: petals narrow, obcordate. 



6. E. coloratura, Muhl. Erect, branched, pubemlent: leaves mostly opposite. 



7. E. alpinum, L. Creeping, 2 to 6 inches high: flower-buds ovoid: anthers globose. 



8. E. origunifolium, Lane. Taller: large petals obcordate, purple to white. 



9. E. Franciscanum, Barb. Stems 2 to 4 ridged: petals purple, emarginate. 



10. E. brevistylum, Barb. Similar: petals smaller, obcordate, pinkish. S. N. Mts. 



11. E. glaberimum, Barb. Glaucous: leaves connected at base: petals notched.. 



12. E. paniculatum, Nutt. Often tall, very slender: leaves slender, often fascicled. 



13. E. jocundum, Gr. Similar: panicles crowded: petals larger, 6 lines long, deep 

 purple. 



14. E. minutum, T,,fodL Less than a ft. high: petals minute. 



5. GAYOPH YTUM, A. Jussieu. 



1. G. ramosissimum, T. & G. Diffuse, 6 to 18 inches high: capsule 3-5-seeded. 



2. G. racemosum, T. & G. Less branched, more flowers, capsule 8 to 10 lines long. 



3. G. pumilum, Watson. Smaller: capsule 6 lines long, the many seeds oblique. 



4 G. difiusum, T. & G. Flowers 1 to 3 lines broad, usually pink: capsules on 

 pedicels. 



6. EULOBUS, NuttalL 

 1. B. Californicus, Nutt Stout, 1 to 3 ft. high: petals 4 or 5 linen broad, yellow. 



7. (ENOTHERA, Linnsens. 



Calyx-tube much prolonged beyond the ovary: stigma-lobes slender. 



Tall: flowers yellow, erect in bud: seeds in 2 rows in each cell 1 



Stems white: flowers white or purplish, 1 or 2 inches broad: buds nodding 2, 3, 4 



Stemless: calyx-tube 2 to 4 inches long: capsule wing-angled t 6 



2. Calyx-tube JHtform, stem-like above the ovary: stigma capitate: flowers yellow, sessile 

 on the top of a rootstock in the axils of radical leaves. 



Nearly glabrous: leaves lanceolate to ovate: perennial 6, 7 



Canescently villous: leaves linear: capsule 4- winged: annual 8 



3. Calyx-tube obconic or short-funnel form: stigma capitate: capsules narrow, sessile or 



nearly so, often contorted. 



Flowers axillary, yellow: capsule sharply 4-angled, usually contorted. 9, 10, 11 



Flowers axillary, small, yellow: capsule obtusely angled, curved. 12. 13 



