ONAGRARI.E. VII. (ENOTHERA. 



685 



Booth's Evening Primrose. PI. | foot. 



7 CE. PYGM.E'A (Dougl. mss. ex Hook. fl. bor. amer. 213.) 

 stem ascending, branched ; lower leaves stalked, rhomboid, supe- 

 rior ones sessile, lanceolate, all toothed and pubescent ; capsules 

 somewhat secund, cylindrical, attenuated at the apex, torulose. 

 Q.I H. Native of North-west America, in barren sands near 

 the Utalla river. Habit of the preceding species. 



Pygmy Evening Primrose. PI. ^ to ^ foot. 



8 CE. SPIRA'LIS (Hook. fl. bor. amer. p. 213.) stem nearly 

 simple, decumbent, hoary ; leaves lanceolate, obtuse, quite en- 

 tire, hoary, and beset with strigose pili, attenuated at the base ; 

 spikes leafy ; petals twice the length of the stamens ; capsule 

 acutely tetragonal, acuminated, hoary, somewhat spirally twisted. 

 Q.? H. Native of the north-west coast of America. Allied 

 to CE. Bobthii, but larger in all parts, and very easily distin- 

 guished by its entire hoary leaves and capsules. 



.Syjira^-capsuled Evening Primrose. Pi. \ foot. 



9 CE. VIRIDE'SCENS (Hook. fl. bor. amer. p. 214.) plant 

 densely clothed with hoary tomentum ; stem erect, simple ; 

 leaves ovate, acute, sessile, coarsely toothed ; spikes leafy ; pe- 

 tals deep green in the dried state, twice the length of the sta- 

 mens ; capsule acutely tetragonal, rather hairy, twisted. .? 

 H. Native of the north-west coast of America. 



GVeenuA-petalled Evening Primrose. PI. -J foot. 



10 (E. CONTORTA (Dougl. mss. ex Hook. fl. bor. amer. p. 

 214.) stem weak, branched, glabrous; leaves linear, quite en- 

 tire, glabrous ; flowers small ; capsule cylindrical, twisted, 

 curved, elongated, torulose. Q. ? H. Native of North Ame- 

 rica, in sandy barren soil on the interior banks of the Columbia 

 river. Although the specimens examined by Dr. Hooker of 

 this, as well as those of CE. pygmce"a, are too imperfect to 

 determine exactly the form of the stigmas, he thinks it not impro- 

 bable from the habit of these plants that they should be ranged in 

 the present section. 



7'wwterf-podded Evening Primrose. PI. ^ to ^ foot. 



SECT. II. ONA'GRA (a name given by Tournefort to the genus 

 CEnothera). Ser. in D. C. prod. 3. p. 46. Onagra species, 

 Tourn. inst. p. 302. t. 156. Gsertn. fruct. 1. p. 159. t. 32. f. 1. 

 Stigma quadrifid. Anthers oblong-linear, usually emarginate at 

 the base. Capsule cylindrical, prismatic, or obsoletely tetragonal, 

 sometimes thickened at the base, but never at the apex. 



Flowers yellow. 



1 1 CE, BIE'NNIS (Lin. spec. 492.) stem erect, branched ; radical 

 leaves oblong-lanceolate, cauline ones ovate-lanceolate, toothed, 

 pubescent ; petals hardly obcordate, exceeding the stamens ; 

 lobes of stigma linear and thickish ; capsule nearly cylindrical, 

 thickest at the base ; valves either entire or bifid, opening at the 

 apex. $ . H. Native of North America, in Virginia, Canada, 

 and on the north-west coast, from whence it has migrated to 

 Europe in the year 1614, and now found apparently wild in 

 England ; particularly between the first and second ranges of 

 sand banks on the coast of Lancashire, a few miles north of 

 Liverpool, in the greatest abundance. It covers several acres of 

 ground near Woodbridge, Suffolk. This plant is common in 

 gardens, and often escapes from thence into rich waste ground. 

 But on the dreary sand of our Lancashire coast it is truly wild, 

 being planted there by the hand of nature, though perhaps trans- 

 ported by natural means from the other side of the Atlantic. 

 Fl. dan. 446. Smith, engl. hot. 1534. Flowers large, pale yel- 

 low, delicately fragrant. Roots eatable. 



Biennial or Common Evening Primrose. Fl. July, Sep. Brit. 

 PI. 2 to 4 feet. 



12 CE. MURICA'TA (Lin. syst. veg. 296. Murr. nov. comm. 

 gcett. 6. p. 24. t. 1.) stem erect, branched, purplish, muricated 

 with strigse ; leaves oblong-lanceolate, glabrous, remotely 

 denticulated ; petals obcordate, length of the stamens ; capsule 



nearly cylindrical, rather hairy. $ . H. Native of Canada, 

 and on the plains of the Saskatchawan, and of the Straits of 

 Fuca. Fl. dan. 1. 1752. Flowers yellow. Upper leaves downy. 

 Sepals lanceolate, acuminated, hairy, longer than the petals. 

 Strigac red at the base. 



Muricated-stemmed Evening Primrose. Fl. July, Sep. CIt. 

 1789. PL 3 to 4 feet. 



13 CE. EIA'TA (H. B. et Kunth, nov. gen. amer. 6. p. 90.) 

 leaves lanceolate, acute, clothed with silky canescent pubescence, 

 obsoletely and remotely denticulated ; petals roundish-obovate, 

 retuse, pale yellow ; stamens declinate, about the length of the 

 petals ; capsules sessile, cylindrical, slightly angular, clothed 

 with silky villi. $ . H. Native of Mexico. Flowers pale 

 yellow. 



Tall Evening Primrose. Fl. July. Clt. 1826. PI. 6 feet. 



14 CE. PUBE SCENS (Willd. herb, ex Spreng. syst. 2. p. 229.) 

 stem simple, erect ; leaves oblong-lanceolate, obsoletely toothed, 

 pubescent; capsule curved, cylindrical, clothed with silky villi. 



$ . H. Native of South America. Flowers yellow. 

 Pubescent Evening Primrose. PI. 2 to 3 feet. 



15 CE. GRANDIFLORA (Ait. hort. kew. ed. 1. vol. 2. p. 2. 

 (1789.) ed. 2. vol. 2. p. 341. but not of Ruiz et Pav.) pubes- 

 cent ; stem simple ; leaves lanceolate, remotely toothed ; geni- 

 tals deflexed ; petals large, obcordate ; capsule sessile, cylindri- 

 cal, and slightly angular. $ . H. Native of North America. 

 Flowers large, pale yellow, solitary and sessile in the axils of 

 the leaves. 



Far. a, ptibescens (Sims, bot. mag. t. 2068.) stems, leaves, and 

 capsules pubescent ; calyx villous. $ . H. 



Var. ft, glabra (Sims, bot. mag. 2068.) stem, leaves, and cap- 

 sules glabrous. . H. 



Great-flowered Evening Primrose. Fl. June, Aug. Clt. 1778. 

 PI. 2 feet. 



16 CE. SWAVE'OLENS (Desf. tabl. ed. 1804. p. 169. et Pers. 

 ench. 1. p. 408.) stems, calyxes, and capsules pilose; leaves 

 ovate-lanceolate, obsoletely toothed ; petals large, emarginate ; 

 capsule elongated, about equal in thickness from base to apex. 



$ . H. Native of North America. This plant is cultivated for 

 the scent and size of the flowers, which are yellow. 



Sweet-scented Evening Primrose. Fl. June, Aug. PI. 2 ft. 



17 CE. SIMSIA'NA (Ser. in D.C. prod. 3. p. 47.) stem straight, 

 hispid, furrowed ; leaves lanceolate, repandly toothed ; tube of 

 calyx 3 times the length of the ovarium ; sepals very narrow, 

 length of the petals ; petals obovate, rather truncate, denticulated 

 at the apex ; stamens arched, shorter than the corolla ; lobes of 

 stigma linear, thickish ; capsule sessile, cylindrical, slightly an- 

 gular, with the valves reflexed at the apex. $ . H. Native of 

 Mexico. CE. corymbosa, Sims, bot. mag. t. 1974. but not of 

 Lam. Flowers yellow. 



Sims's Evening Primrose. FL July, Aug. Clt. 1816. PI. 3 ft. 



18 CE. LAMARKIA'NA (Ser. in D. C. prod. 3. p. 47.) stem 

 branched ; leaves quite entire ; petals large, entire ; capsules 

 glabrous, cylindrically tetragonal, short. $ . H. Native of 

 North America. CE. grandiflora, Lam. diet. 4. p. 554. but not 

 of Ait. Flowers yellow. 



Lanark's Evening Primrose. PI. 2 to 3 feet. 



19 CE. SALICIFOLIA (Desf. cat. 1815. p. 271.) stem tall, sim- 

 ple, angular ; leaves oblong-lanceolate, acute, nearly entire, 

 rather pilose, thickish ; genitals about equal in length to the 

 corolla ; lobes of stigma oblong-linear, large, thickish ; capsule 

 oblong, tetragonal ; valves linear, with red nerves. $ . H. Na- 

 tive country unknown. Flowers yellow. 



Willow-leaved Evening Primrose. Fl. July, Aug. Clt. 1 824. 

 PI. 2 to 3 feet. 



20 CE. PARVIFLORA (Lin. spec. 492.) stem even, reddish, 

 rather villous ; leaves ovate-lanceolate, denticulated ; stamens 

 erect, longer than the petals ; capsule ovate-cylindrical. $ . H. 



