GS8 



ONAGRARI/E. VII. CENOTHERA. 



Pleasing Evening Primrose. Fl. Ju. July. Clt. 1825. PI. 1 ft. 



49 CE. VIMI'NEA (Dougl. in bot. mug. t. 2873.) stem erect, 

 branched, glaucous, glabrous ; leaves lanceolate, nearly quite 

 entire, glaucous, and glabrous ; tube of calyx about equal in 

 length to the segments ; petals entire, denticulated, twice the 

 length of the genitals ; stigmas purple ; capsule cylindrical, at- 

 tenuated at the apex, furrowed, pubescent. O- H. Native of 

 North California, near the river Aquilar, in dry prairies in lat. 

 43 north. Lindl. bot. reg. 1220. Flowers lilac. 



Tniggy Evening Primrose. Fl. June, Sep. Clt. 1826. PL 

 2 to 3 ft. 



50 CE. LINDLE'YII (Dougl. in bot. mag. 2832.) stem ascend- 

 ing, diffuse, branched ; leaves linear-lanceolate, quite entire, gla- 

 brous ; tube of calyx 3 times shorter than the segments ; petals 

 entire, denticulated, twice the length of the genitals ; stigmas 

 yellow; capsule cylindrical, elongated, tapering to both ends, 

 puberulous. O- H. Native of the north-west coast of Ame- 

 rica, about Fort Vancouver, and at the Mulnomak river. Petals 

 lilac, each marked with a purple spot ; claws yellow. 



Lindleys Evening Primrose. Fl. June, Nov. Clt. 1826. PI. 

 1 to 2 feet. 



51 CE. DECU'MBDNS (Dougl. in bot. mag. 2889.) stem ascend- 

 ing ; leaves glaucous, quite entire, pubescent, lower ones broadly 

 ovate, upper ones ovate-lanceolate ; petals emarginate, crenu- 

 lated ; stigmas purple, with reflexed segments ; capsule bluntly 

 tetragonal, tapering from the base, villous. O- H. Native of 

 California, in dry mountain valleys. Lindl. bot. reg. 1221. 

 Petals lilac, obcordate. From all its nearest allies this plant dif- 

 fers in the form of the stigmas. 



Decumbent Evening Primrose. Fl. June, Nov. Clt. 1827. 

 PI. 1 to 2 ft. long, ascending. 



52 CE. PURPU'REA (Curt. bot. mag. 352.) plant glaucescent ; 

 leaves lanceolate, attenuated at both ends, bluntish ; tube of calyx 

 short ; petals obovate, crenulated ; genitals exserted, much 

 shorter than the corolla ; lobes of stigma thick, short, dark pur- 

 ple ; anthers yellow ; capsule ovate, triquetrous, sessile, angular, 

 pilose ; seeds irregularly angular, and covered with dots when 

 examined by a lens. O- H. Native of the north-west coast of 

 America. CE. humilis, Donn, hort. cantab. p. 41. Flowers 

 purple. 



Purple Evening Primrose. Fl. May, Aug. Clt. 1794. PI. 1 ft. 



53 CE. ROMANZOVII (Ledeb.in Horn. hort. hafn. suppl. 133.) 

 glaucous; stem erect; leaves lanceolate-oblong, mucronate, taper- 

 ing into the petiole ; tube of calyx very short ; limb one-half 

 shorter than the corolla ; petals broad-obovate, crenulated ; sta- 

 mens much shorter than the corolla ; anthers green ; stigmas nearly 

 sessile, inclosed, dark purple ; capsule oblong-cylindrical, some- 

 what tetragonal, pilose ; seeds hoary, and rather scaly when ex- 

 amined by a lens. O- H. Native of North America, on the 

 western coast. D. Don in Ker. bot. reg. t. 662. Flowers vio- 

 laceous. 



Romanxov's Evening Primrose. Fl. July, Aug. Clt. 1817. 

 PI. tol ft. 



SECT. III. CNOTHE V RIUM (an alteration from the generic 

 name). Ser. in D. C. prod. 3. p. 49. Stigma quadrifid (f. 96. c.). 

 Tube of calyx cylindrical, dilated at the apex. Anthers oblong. 

 Capsule oblong or obovate, tetragonal ; the angles prominent ; 

 valves obovate. 



* Flowers rvhite. 



54 CE. ACAU'LIS (Cav. icon. 4. p. 68. t. 399.) leaves rosulate, 

 pinnatifid ; the terminal lobe large and denticulated ; tube and 

 flowers large ; calycine segments free, reflexed ; petals obovate, 

 rather refuse, entire ; anthers and stigmas narrow, shorter than 

 the corolla ; capsule obovate, tetragonal, a little winged, sessile. 

 I/. F. Native of Chili. Ker. bot. reg. 763. Petals large, 

 white, but becoming red as they fade. 



Stemless Evening Primrose. Fl. May, Sep. Clt. 1821. Pl.^ft. 



55 CE. TARAXACIFOLIA (Hort. and Sweet, fl. gard. t. 294.) 

 stem branched, elongated, procumbent ; leaves pubescent, alter- 

 nate, interruptedly pinnatifid, sinuately toothed, but the apex 

 entire ; tube of flower very long ; petals large, obovate, entire, 

 5-nerved ; anthers and stigmas shorter than the corolla ; capsules 

 sessile, obovate, pubescent, tetragonal ; angles winged. If.. II. 

 Native of Chili, about Conception. CE. grandiflora, Ruiz, et 

 Pav. fl. per. 2. t. 318. f. 6. (E. acaulis ft, major, Ser. in D. C. 

 prod. 3. p. 49. Flowers large, white, but becoming reddish as 

 they fade. 



Dandelion-leaved Evening Primrose. Fl. May, Aug. Clt. 

 1825. PI. ! foot. 



56 CE. ANISOLOBA (Sweet, fl. gard. new. ser. 105.) stem suf- 

 fruticose, tall, straight, branched, downy; radical leaves elliptic, 

 entire, or few-toothed ; middle ones elliptic, sharply toothed, with 

 the segments at the base variable, linear, acute, and divaricating ; 

 upper ones unequal, pinnatifid, with the segments divaricate, 

 with the terminal lobes large ; tube of flower very long ; ovary 

 tetragonal ; petals large, imbricate, with crenulated margins. 

 1. H. Native of Chiloe. Flowers large, white, becoming red 

 as they fade. Lindl. bot. reg. t. 1479. Leaves downy. Lobes 

 of stigma linear. 



Unequal- lobed-leaved Evening Primrose. Fl. May, Oct. Clt. 

 1828. PI. 3 feet. 



57 CE. PU'RSHII ; pubescent ; stem decumbent, white ; radi- 

 cal leaves nearly entire ; cauline ones pinnatifid, with linear acute 

 divaricate segments ; nerves of leaves white like the stem ; 

 flowers few, disposed in a kind of spike ; petals obcordate, 

 white, large, longer than the stamens ; style filiform ; ovaries 

 sessile, prismatic, furrowed. . H. Native of North Ame- 

 rica, on the plains of the Missouri. CE. albicaulis, Pursh, fl. 

 amer. sept. 2. p. 733. but not of Nutt. CE. pinnatifida, Nutt. 

 gen. amer. 1. p. 245. but not of Kunth. Flowers large, white. 



Pursh's Evening Primrose. Fl. May, Aug. Clt. 1811. PI. dec. 



58 CE. spEci6sA(Nutt. in mem. acad.' soc. hist. nat. phil. 

 1821. p. 119.) plant puberulous; stem sufTruticose ; leaves 

 oblong-lanceolate, attenuated at both ends, serrated, and some- 

 what pinnatifid, nerved, pubescent beneath ; flowers subrace- 

 mose ; raceme naked, at first drooping ; petals obcordate, equal 

 in length to the stamens; capsule obovate, angular. 1. H. 

 Native of North America, on the banks of the Red river. 

 Hook. exot. fl. t. 80. Sweet, fl. gard. 253. Flowers large, 

 white, but becoming reddish as they fade. 



Shewy Evening Primrose. Fl.Mar. Sept. Clt. 1821. PI. 2 to 3 ft. 



59 CE. TETRA'PTERA (Cav. icon. 3. p. 40. t. 279.) stem 

 branched, pilose ; leaves lanceolate, pinnatifid, or toothed, some- 

 what ciliated, hardly petiolate ; tube of calyx almost want- 

 ing ; petals obcordate, entire ; genitals shorter than the corolla ; 

 anthers and stigmas narrow and long ; capsule obovate, 4-winged, 

 ribbed, pilose, tapering into a pedicel at the base ; seeds ovate, 

 acute, smooth, pale. Q. H. Native of New Spain. Sims, 

 bot. mag. 468. Petals white, but becoming red as they fade. 



Four-winged-capsuled. Evening Primrose. Fl. June, Sept. 

 Clt. 1 796. PI. 1 foot. 



60 CE. LATIFLORA (Moc. et Sesse, fl. mex. icon. ined. t. 376.) 

 root fusiform ; stem terete, hairy, branched at the apex ; leaves 

 lanceolate-linear, acute, deeply toothed, alternate, opposite, or in 

 whorles ; flowers on short pedicels. . H. Native of Mexico. 

 Flowers large, white, but becoming reddish as they fade. Fruit 

 unknown. 



Broad-flowered Evening Primrose. PI. 1 foot. 



* Flomers red or purple. 



61 CE. VIRGA'TA (Ruiz, et Pav. fl. per. 29. t. 315.) stem pros- 

 trate or erect, branched ; leaves lyrate and lanceolate, toothed ; 



