502 ONAGRACEtE. CEnothera. 



P. Douirlasii : low, minutely canesccnt when young ; stems mostly sim- 

 ple ; leaves lanceolate or s])atulate-lanceolate, shorter, serrulate, the lower- 

 most nearly entire ; flowers smaller ; capsules canescent. — CE. leucocarpa, 

 Lehm..' in Hook. jl. Bor.-Am. \. p. 210. 



y. Drummondii : low, minutely pulterulent ; stems simple ; leaves linear- 

 spatulate or spatulate-oblong, une(|ually and rather coarsely serrulate, the 

 teeth sometimes obtuse ; flowers larger ; capsules puberulent. — Calylophis 

 Drummondiana, Spach ! I. c. 



6. sjnnulosa : taller, often branching, almost glabrous ; leaves linear, elon- 

 gated, acute (sometimes obtuse), spinulose-serraie ; flowers rather large; 

 capsules minutely pubescent. — (E. spinulosa, Nutt. ! ined. CE. serrulata, 

 NuU. ! in jour. acad. Philad. 2. p. 120 ; Hook.! exot.Jl. t. 140. 



Dry hills and plains, from the Platte River to the mountains, Nuttall ! 

 Dr. James ! On the Red R-iver and the Missouri, Nuttall ! On the Missis- 

 sippi above the Falls of St. Anthony, Dr. Houghton! fi. Saskatchawan &c. 

 Douglas ! Drummond ! y. Texas, Drummond ! S. Arkansas, Nuttall ! 

 Dr. Leavenworth ! June-July. — Stems 6-12 inches high. Petals about half 

 an inch in length, twice as long as the stamens, bright yellow. — Mr. Nuttall 

 considers his CE. spinulosa to be a very distinct species ; but our suite of spe- 

 cimens furnishes numerous intermediate forms between this and CE. leuco- 

 carpa, which are the two extremes. 



§ 4, Stigma with 4 short linear or roundish lobes : tube of the calyx obconic 

 or infundibuliform, mostly shorter than the ovary : petals fiabelliform, erose 

 at the summit : stamens short, erect : the filaments (flat) opposite the petals 

 much shortest : anthers oblong, fixed near the base, erect, or at length arcu- 

 ate : capsules cylindrical or oblong-conical, mostly sessile, coriaceous : seeds 

 ascending or horizontal, in a single series, uith a crustaceous testa : the 

 chalaza large, bordered with a very minute denticulate membranaceous bor- 

 der : stems annual : flowers diurnal, inodorous, lilac-purple or rose-color, 

 erect before exjmnsion. — Godetia, Spach. 



* Lobes of the stigma linear (yellow) : capsule elongated, attenuate at the base, 

 canescent or puberulent : seeds ascending (flowers large). 



29. CE. Lindleyi (Dougl.) : stem diffuse, ascending, branched ; leaves 

 linear-lanceolate, mostly entire, acute at each end, nearly glabrous ; tube of 

 the calyx obconic, much shorter than the segments ; petals (large, lilac-purple 

 wdth a deep red spot) twice or thrice the length of the stamens and stjde ; 

 capsules elongated, attenuate at each end, puberulent. — Dougl. ! in Hook, 

 hot. mag. t. 2832; Lehn.! in Hook. fl. Bor.-Am. 1. p. 211; Don, in 

 Brit, fl: gard. {ser. 2) t. 19 ; Lindl. ! bot. reg. t. 1405. (var.) CE. ma- 

 crantha, Nutt. ! mss. Godetia Lindleyana, Spach ! I. c. 



Oregon and California, Douglas! Nuttall! — Flowers large and show^. 

 Capsules 1-2 inches long. — This and the tliree succeeding species, now in 

 common cultivation, are perhaps^oo nearly related. 



30. CE. rubicunda (Lindl.) : stem erect ; leaves linear or lanceolate, den- 

 ticulate or entire, acute or acuminate, nearly glabrous; tube of the calyx ob- 

 conic, much shorter tlian the segments ; jpetals (large, purplish-rose-color, 

 not spotted, bright orange-red at the base) twice or thrice the length of the 

 stamens and style ; anthers (orange) with empty yellow tips ; cajisules linear, 

 truncate. — Godetia rubicunda, Lindl. ! bot. reg. t. 185G. 



California, Douglas ! — Capsules nearly sessile, somewhat 4-sided. 



