ONAGRARI/E. XIV. LOPEZIA. XV. CIKCJEA. XVI. PLEUROSTEMON. 



699 



nov. act. bonn. 9. p. 192.) plant glabrous; stem tetragonal, 

 nearly simple ; leaves ovate, acute, sharply denticulated, some- 

 what acuminated, for the most part opposite, but the upper ones 

 are alternate; racemes short. O- H. Native of Mexico. 

 Sterile stamen white. 



Small Lopezia. PI. ^ foot. 



5 L. OPPOSITIFOLIA (Lag. nov. gen. et spec. p. 1.) plant gla- 

 brous ; leaves ovate, dentately serrated, for the most part oppo- 

 site, but the upper ones are scattered ; racemes terminating the 

 branches ; upper flowers nearly leafless. Q. H. Native of 

 New Spain. Schrank, nov. act. bonn. 9. p. 91. L. annua, 

 Hort. 



Opposite-leaved Lopezia. PI. 1 foot. 



6 L. INTEGIIIFOLIA (D. C. prod. 3. p. 62.) plant glabrous ; 

 leaves alternate, ovate-lanceolate, acuminated at both ends, 

 quite entire ; racemes leafy, terminating the branches. () H. 

 Native of Mexico. Stem angular. Petioles of lower leaves 

 more than an inch long. Sterile stamen white. Leaves quite 

 entire or hardly sinuated, never serrated. 



Entire-leaved IiOpez'wL. PI. 1 to 1^ foot. 



7 L. MINIA'TA (D. C. cat. hort. monsp. 1813. p. 121.) stem 

 slirubby, glabrous, terete ; leaves alternate, ovate-lanceolate, 

 serrated ; racemes terminating the branches. Ij . S. Native 

 of New Spain. Lag. nov. gen. et spec. 1814. p. 1. Jacq. fil. 

 eclog. t. 109. L. frutescens, Rcem. et Schult. syst. 1. (1817.) 

 p. 34. L. fruticosa, Schrank, nov. act. bonn. 9. p. 91. Sterile 

 stamen the same colour as the petals. 



Vermilion-fiovfered Lopezia. Shrub 1 to 2 feet. 



8 L. IIIRSU'TA (Jacq. coll. 5. p. 5. t. 15. f. 4.) stem suffru- 

 tescent, hairy, terete ; leaves ovate-lanceolate, hairy, subser- 

 rated ; racemes terminating the branches. H. Native of 

 Mexico. Sterile stamen the same colour as the petals. 



Hairy Lopezia. Fl. Sept. Nov. PI. 1 to 2 feet. 



9 L. PUBE'SCENS (H. B. et Kunth, nov. gen. amer. 6. p. 92.) 

 stem branched, glabrous, terete, as well as the downy branches ; 

 leaves oval-oblong, acute, pubescent. O.H. Native of Mexico ? 



Pubescent Lopezia. PI. 1 foot. 



10 L. PU'MILA (Bonpl. nav. p. 57.) stem simple, hairy, terete; 

 leaves on short petioles, ovate, acute, toothed, upper ones lan- 

 ceolate, pilose on both surfaces ; racemes terminal ; flowers on 

 long pedicels. O- H. Native of Mexico, on hills between 

 Guanaxuato and Santa Rosa. Bracteas shorter than the pedi- 

 cels. Calyx glabrous. 



Dwarf Lopezia. Fl. July, Sept. Clt. 1824. PL foot. 



Cult. All the species are elegant border annuals, when in 

 flower, and most of them will live through many winters, and 

 become suffrutescent, if sheltered from the frost. They are of 

 easy culture, the seeds only requiring to be sown in the border 

 early in spring, or sown on a hot-bed to forward the plants, 

 which may afterwards be planted out in the open border. A 

 light soil and warm situation suit them best. 



XV. CIRCjE'A (Circe, in mythology, the famous enchantress; 

 in reference to the fruit, which lays hold of the clothes of pas- 

 sengers, from being covered with hooked prickles, as Circe is 

 fabled to have done by her enchantments). Tourn. inst. t. 155. 

 Lin. gen. no. 24. Lam. ill. t. 16. Gsertn. fruct. 1. p. 114. 

 t. 24. D. C. prod. 3. p. 63. 



LIN. SYST. Didndria, Monogynia. Calyx deciduous, tubular, 

 with a 2-parted limb. Petals 2, alternating with the lobes of 

 the calyx. Stamens 2, alternating with the petals, inserted into 

 the calyx. Disk large, cup-shaped, filling up the whole of the 

 tube of the calyx, and projecting beyond it. Ovarium 2- celled, 

 with an erect ovulum in each cell. Style simple, arising out 

 of the disk. Stigma emarginate. Capsule 2-celled, 2-valved, 

 2-seeded. Seeds solitary, erect, without albumen. Embryo 



erect, with a short inferior radicle. Herbaceous plants. Roots 

 creeping. Leaves opposite, stalked, toothed. Flowers in ter- 

 minal and lateral racemes, covered with uncinate hairs. This 

 genus differs from the rest of Onagraricv, in its large fleshy 

 disk, in its solitary, erect ovula, and in the binary division of 

 the flower ; it is connected with this order through Lopezia, 

 with which it cannot, however, be absolutely associated, and 

 bears about the same relation to Onagrarice, as is borne by 

 HaloriigecB. 



1 C. LUTETIA'NA (Lin. spec. 12.) stem erect, pubescent ; 

 leaves ovate, acuminated, toothed, opaque and downy, longer 

 than the petioles. If. . H. Native of Europe, in moist shady 

 places; plentiful in some parts of Britain. Fl. dan. t. 210. 

 Schkuhr, handb. t. 2. Smith, engl. bot. t. 1026. C. vulgaris, 

 Mcench. C. pubescens, Pohl. C. ovalifolia, Gray. The roots 

 are creeping ; and have been considered detersive. Flowers 

 pale red. Anthers and style whitish. Stigma red. 



Var. /3, Canadensis (Lin. 1. c.) stem glabrous. If. . H. Native 

 of North America, particularly in Canada, about Lake Huron 

 and Montreal, as well as in the United States. C. Canadensis, 

 Muhl. cat. p. 2. C. Lutetiana, Bigel. fl. bost. p. 8. 



Parisian or Common Enchantress Nightshade. Fl. June, Jul. 

 Britain. PI. 1 to 1^ foot. 



2 C. ALPI'NA (Lin. spec. 12.) stems ascending, smoothish ; 

 leaves cordate, toothed, shining, length of petioles, mem- 

 branous. %. H. Native of Europe, in moist, shady, stony 

 places ; plentiful in some parts of the north of England and 

 Scotland, and almost throughout all North America. Smith, 

 engl. bot. 1. 1057. Lam. ill. t. 16. f. 2. C. cordifolia, Stok. 

 mat. med. 26. Flowers pale red. Fruit less hispid than those 

 of the preceding species. Plant 4 or 6 inches high. 



Var. ft, intermedia (Ehrh. beitr. 4. p. 42.) stem erect, simple, 

 smoothish ; leaves repandly denticulated, acuminated. 1 . H. 

 Native of Europe, in mountainous and shady places. Sturm, fl. 

 germ, with a figure. This plant grows to the height of C. Lu- 

 tetiana but it differs from it in the leaves being cordate, as in 

 C. alpina. 



Alpine Enchantress Nightshade. Fl. July, Aug. Britain. 

 PI. | to 1 foot. 



Cult. The species of Circafa will grow under any circum- 

 stance, and are easily increased by the running roots, which 

 render them a great pest in gardens, unless confined by some 

 means. 



t Genera belonging to Onagrarice, but are not sufficiently 

 known. 



XVI. PLEUROSTE'MON (from TT\IV ? OV, pleuron, a side, 

 and arrtpov, stemon, a stamen ; in reference to the stamens being 

 all at one side of the flower). Rafin. adn. 1820. D. C.prod. 3. 

 p. 64. Pleurandra, Rafin. fl. lud. 1817. p. 95. but not of 

 Labill. 



LIN. SYST. Octdndria, Monogynia. Tube of calyx drawn 

 out beyond the ovarium, bifid at the apex. Petals 4, spatulate, 

 all on one side. Stamens 8, and are as well as the style at that 

 side of the flower opposite the petals. Stigma 4-lobed. Capsule 

 oval, 4-celled, many-seeded. Seeds unknown. This genus 

 appears to come very near (Enothera, from the calycine tube 

 being drawn out beyond the ovarium. 



1 P. A'LBUM (Rafin. 1. c.). Pj . F. Native of Louisiana. CEno- 

 thera, no. 2. Robin, louis. p. 490. Stem shrubby, 7 feet high. 

 Branches terete, twiggy. Leaves sessile, narrow, entire, acute. 

 Flowers white, on short pedicels ; genitals exserted. 



Wfo'ie- flowered Pleurostemon. PI. 7 feet. 



Cult. The seeds of this plant may be sown in the open 

 border. 



4 u 2 



