690 



ONAGRARI.E. VII. (ENOTHERA. VIII. GAYOPHYTUM. IX. CLARKIA. 



angled, 4 of the angles winged, i;. H. Native of North 



America, in most parts. Curt. FIG. 96. 



hot. mag. t. 335. Mill. ill. 188. 



Flowers yellow, about the size of 



those ofPotenlillai-erna. Leaves 



small, (f. 97.) 



Dwarf Evening Primrose. Fl. 

 May, Sept. Clt. 1757. Pl.-|ft. 



77 CE. RIPA'RIA (Nutt. gen. 

 amer. 1. p. 247.) stem erect, 

 nearly glabrous ; leaves lanceolate, 

 denticulated, glabrous ; flowers 

 subspicate, on short pedicels ; 

 petals emarginate, a little longer 

 than the genitals ; capsules 8- 

 furrowed, the 4 alternate ribs 

 more prominent than the rest. 



$ . H. Native of North Ame- 

 rica, in North Carolina, near Wilmington ; and on the plains of 

 the Saskatchawan. Flowers small, yellow. 



River-bank Evening Primrose. PI. 1 to 1 ^ foot. 



78 CE. CHRYSA'NTHA (Michx. fl. bor. amer. 1. p. 225.) stems 

 weak, minutely pubescent ; leaves lanceolate, bluntish, entire ; 

 flowers small ; tube of calyx not half so long as the segments ; 

 capsule sessile, clavate, 8-angled, the 4 alternate angles more 

 prominent than the others. 2/ . H. Native of North America, 

 from Quebec to Hudson's Bay. Flowers yellow, the size of 

 those of Epilobium palustre. Dr. Hooker considers this iden- 

 tical with (E.piimila, see fl. bor. amer. p. 212. 



Golden-quivered Evening Primrose. Fl. May, Sept. PI. ^ 

 to 1 foot. 



79 CE. PUSI'LLA (Michx. fl. bor. amer. 1. p. 225.) plant mi- 

 nutely pubescent ; stems humble, simple ; leaves lanceolate- 

 oblong, bluntish, entire ; capsule sessile, clavate, almost equally 

 8-angled. I/ . H. Native of North America, on rocks at Lake 

 Mistassiny. Lam. diet. 4. p. 144. Flowers small, yellow. CE. 

 purnila fl, minima, Hook. fl. bor. amer. p. 212. 



Small Evening Primrose. Fl. May, Sept. Clt. 1817. PI. ft. 



80 CE. MULTICAU'US (Ruiz, etPav. fl. per. 3. p. 80. t. 317. 

 f. 6.) stems tufted, depressed ; radical leaves lanceolate-oblong, 

 denticulated, cauline ones ovate ; flowers sessile, secund ; petals 

 hardly exceeding the calyx in length ; capsules secund, clavate, 

 8-angled, the 4 alternate angles more prominent than the others ; 

 seeds obovate, angular, fucescent. O-?H. Native of Peru, 

 on the Andes, in the provinces of Tarma and Canta. Flowers 

 yellow. 



Many-stemmed Evening Primrose. PI. depressed. 



81 CE. LINIFOLIA (Nutt. in journ. acad. philad. 1821. p. 120.) 

 stem straight ; leaves linear, very narrow, obtuse, entire ; flowers 

 spicate ; calyxes hispid, obovate-oblong ; angles bluntish ; petals 

 obcordate, 1-nerved; nerve thick, coloured. Q. H. Native 

 of North America, on rocks along the Akanza river. Flowers 

 2 lines broad, yellow. 



Flax-leaved Evening Primrose. Fl. June, Aug. PI. ^ to j ft. 



82 CE. LINEARIS (Michx. fl. bor. amer. 1. p. 225.) plant 

 slender, pubescent ; leaves linear, entire ; capsules on longish 

 stipes, roundish-tetragonal, villous. Q.I H. Native of Upper 

 Carolina. This species is hardly known. Flowers yellow. 



Linear-leaved Evening Primrose. Fl. June, July. Clt. 1822. 

 PI. 1 to 1 foot. 



83 CE. EPILOHIFOLIA (H. B. et Kuntli, nov. gen. amer. 6. p. 

 92.) stem branched ; leaves oblong or ovate-oblong, acute, nar- 

 rowed at the base, remotely and obsoletely denticulated, pube- 

 rulous ; capsules pedicellate, clavate, 4-winged. 1 . I? . F. 

 Native of New Granada. Flowers orange-coloured. 



Willow-herb-leaved Evening Primrose. PI. 1 foot? 



84? CE. TETRAGO'NA (Roth, cat. 2. ex Horn. hort. hafn. 

 suppl. 44.) leaves ovate, obtuse, entire ; flowers somewhat fas- 

 tigiate ; capsules pedicellate, truncate, 4-valved. I/. H. Na- 

 tive of North America. Link. enum. 1. p. 377. Flowers yellow. 



Tetragonal-podded Evening Primrose. PI. 1 foot. 



85 ? CE. ADSCE'NDENS (Willd. herb, ex Spreng. syst. 2. p. 230.) 

 stems weak, ascending, branched ; leaves lanceolate, toothed, 

 pubescent; capsule sessile, clavate, curved. I/.? H. Native 

 of South America. 



Ascending Evening Primrose. PI. ascending. 



f Specie* not sufficiently known. 



86 CE. INCA'NA (Nutt. gen. amer. 1. p. 247.) stem humble, 

 slender, erect ; leaves clothed with hoary tomentum, quite en- 

 tire, elliptic-ovate, acute ; racemes few-flowered, naked ; cap- 

 sules almost sessile, oblong, 4-angled. $ . H. Native of Ma- 

 ryland. Flowers golden yellow. 



Hoary Evening Primrose. PI. \ foot. 



87 CE. AUSTRA'LIS (Sal. prod. p. 278.) leaves linear-lanceo- 

 late, denticulated, undulated, minutely pubescent ; capsule ses- 

 sile, cylindrical, obsoletely 8-angled. Native about Port Desire. 



Southern Evening Primrose. PI. 1 foot. 



Cult. All the species of (Enolhera are handsome border 

 flowers, and deserve to be cultivated. They will grow in 

 any common garden soil. The perennial kinds are easily in- 

 creased by seeds, by dividing the plants at the root, and some of 

 them by cuttings. The seeds of annual and biennial kinds 

 only require to be sown where the plants are intended to re- 

 main. 



VIII. GAYOPHY'TUM (a name peculiarly composed from 

 M. Gay, the discoverer of the plant, and tbvTov, phyton, a plant ; 

 signifying Gay's plant). Adr. Juss. in ann. sc. nat. 25. p. 18. 



LIN. SYST. Octandria, Monogi/nia. Calyx 4-parted. Pe- 

 tals 4. Stamens 8, the 4 opposite the petals small and bar- 

 ren. Style short. Stigma capitate, obscurely 2-lobed from a 

 transverse furrow. Ovarium oblong-elliptic, compressed, 2- 

 celled. Capsule linear, 4-valved, 2-celled ; lateral valves revo- 

 lute ; cells many-seeded. Seeds fixed to the longitudinal pla- 

 centa, 1 row in each cell, ascending, naked. A small, glabrous 

 herb. Leaves linear-falcate, lower ones nearly opposite, upper 

 ones alternate. Flowers solitary, axillary, shorter than the leaves, 

 yellowish. Pollen trigonal. 



1 G. HU'MILE (Adr. Juss. 1. c.). 0. H. Native of San- 

 tiago, in Chili. 



Humble Gayophytum. PI. 1 to 3 inches. 



Cult. The seeds of this plant only require to be sown in the 

 open border, in a warm sheltered situation. 



IX. CLA'RKIA (in honour of Capt. Clarke, the companion 

 of Capt. Lewis, in his journey to the Rocky Mountains of North 

 America). Pursh, fl. amer. sept. 1. p. 260. t. 11. D. C. prod. 

 3. p. 52. Hook, fl. bor. amer. p. 214. 



LIN. SYST. Octdndria, Monogynia. Calyx tubular, 4-cleft, 

 nearly as in CEnothera. Petals 4, unguiculate, cruciate, 3-lobed 

 (f. 97. 6.), convolute in aestivation. Stamens 8, the 4 alternate 

 ones sterile. Stigma 4-lobed (f. 97. a.) ; lobes petaloid. Cap- 

 sule cylindrical, furrowed, 4-celled, 4-valved. Seeds ascending, 

 naked. Smooth, annual herbs, with alternate, lanceolate, or 

 linear, entire leaves ; and axillary, sessile, solitary, showy flowers. 



1 C. PULCHE'LLA (Pursh, 1. c.) petals deeply 3-lobed ; leaves 

 linear. O- H. Native of North-west America, on the banks 

 of the Kooskoosky and Clarke's rivers, and from the great falls 

 of the Columbia to the Rocky Mountains. Hook. bot. mag. 



