PARONYCHIE^;. XIV. ORTEGIA. XV. POLYCARPON. XVI. CERDIA. 



93 





Frankenia-like Aversia. PI. trailing, -| foot. 



Cult. See Baldrdia above for culture and propagation. 



XIV. ORTFGIA (in honour of Joseph E. de Ortega, a 

 Spanish botanist, companion of Lcefling in his travels. See 

 Lopfl'mgia). Lcefl. itin. p. 112. Lin. gen. no. 51. Gsertn. fr. 



2. p. 224. t. 129. f. 8. Ser. in D. C. prod. 1. p. 388. and 3. 

 p. 375. Ortega, Lin. spec. ed. 1. Juncaria, Clus. 



LIN. SYST. Tridndria, Monogynia. Calyx of 5 sepals, or 

 5-parted ; sepals erect, oblong, a little keeled. Petals wanting. 

 Stamens 5, 3 of which are fertile, inserted in the torus in front of 3 

 of the sepals ; the other 2 almost vanished, or small, sterile, and 

 scale-formed. Ovarium ovate. Style 1, capitate at the apex, or 

 bifid. Capsule 3-valved. Seeds numerous, fixed to the central 

 placenta. Embryo straight, placed on the back of the albumen. 

 Erect, much-branched herbs. Leaves opposite, linear, with 2 

 black dots at the sides, from which the stipulas have fallen. Cymes 

 dichotomous, many-flowered. Flowers greenish-white. Stamens 

 hypogynous, as in Stipulicida and Polycarpee"a. 



1 O. HISPA'NICA (Lin. spec. ed. 1. p. 560.) stigma capitate. 

 11 . H. Native of Spain, about Madrid and many other places. 

 Cav. icon. 1. t. 47. Clus. hist. 2. p. 174. f. 2. Vahl. enum. 2. 

 p. 25. 



Spanish Ortegia. Fl. Ju. Jul. Clt. 1768. PL foot. 



2 O. DICHOTOMA (Lin. mant. p. 175.) stigma trifid. 3. H. 

 Native of Italy and Piedmont, about Giavena. All. act. taur. 



3. p. 176. t. 4. f. 1. D. C. fl. fr. ed. 3. vol. 4. p. 726. Vahl. 

 symb. 2. p. 25. Cyme more loose than that of the first species, 

 and therefore it is more distinctly dichotomous, but divided in 

 a similar way. 



Dichotomous Ortegia. Fl. Aug. Sept. Cl. 1781. PL foot. 



Cult. The species thrive best in light soil ; and are increased 

 by cuttings or seeds. They are well fitted for rock work, or to 

 be grown in small pots among other alpine plants. 



XV. POLYCA'RPON (from tro\v, poly, many, and rapjroe, 

 Icarpos, a seed; seeds numerous). Lcefl. in Lin. gen. no. 105. 

 Gaertn. fr. 2. t. 129. Lari. ill. t. 51. Juss. mem. mus. 2. p. 

 390. B.C. prod. 3. p. (.76. Trichlis, Hall, gcett. Anthyllis 

 species, Adans. 



LIN. SYST. Tri-Pentdndria, Trigynia. Calyx deeply 5- 

 cleft (f. 23. a.), permanent ; segments concave, keeled, mucronate 

 at the apex. Petals 5 (f. 23. b.), emarginate, inserted in the 

 tube of the calyx. Stamens 3-5, inserted in the tube of the 

 calyx. Style trifid; lobes papilliferous inside. Capsule 1-celled, 

 3-valved (f. 23. e.), many-seeded. Seeds nearly ovoid, a little 

 curved, fixed to the central placenta. Annual, branched, dicho- 

 tomous herbs. Leaves opposite, or 4 in a whorl ; young ones 

 usually disposed in fascicles in the axils of the old leaves. 

 Flowers in cymose corymbs. Stipulas and bracteas small, sca- 

 rious. This genus agrees with Adenarium, but differs in the 

 stamens being equal in number to the petals, not as in Caryo- 

 phyllece, double that number. 



* Flowers triandrous. 



1 P. APURE'NSE (H. B. et Kunth, nov. gen. amer. 6. p. 40.) 

 flowers triandrous; petals emarginate? leaves 5-10 in a whorl. 

 O- H. Native of South America, on the banks of the river 

 Apures, in the province of de Varinas. Stems diffuse, pubes- 

 cent. Leaves linear-spatulate. Cymes dichotomous. Lobes 

 of calyx obtuse. Stamens and styles 3. 



Apures All-seed. PI. -| to foot. 



2 P. TETRApHY'iLUM(Lin. fil. suppl. 116.) flowers triandrous; 

 petals emarginate ; lower leaves 4 in a whorl ; rameal ones op- 

 posite, obovate-oblong, rounded at the apex, mucronulate, shorter 

 than the internodes. Q. H. Native of Europe, Canary Islands; 

 Brazil on walls, about the town of St. Paul. In England, on the 



FIG. 23. 



west coast ; on various parts of the coast of Devonshire, Somef- 

 setshire, and Portland Island. 

 Smith, engl. bot. 1. 1031. Krock. 

 fl. siles. t. 42. Mollugo tetra- 

 phylla, Lin. spec. 1. p. 89. 



Var. j3, diphyllum (D. C. prod. 

 3. p. 376.) leaves all opposite. 

 O- H. Polycarpon diphyllum, 

 Cav. icon. 2. p. 40. t. 151. f. 

 1 . Paronychia striata, D. C. in 

 Lam. diet. 5. p. 25. ? Illece- 

 brum striatum, Pers. ench. 1. 

 p. 261. 



Four-leaved All-seed. Fl. Ju. 

 Jul. Engl. PI. foot. 



* * Flowers pentandrous. 



S P. ALSINEFOLIUM (D. C. prod. 3. p. 376.) flowers pentan- 

 drous ; petals nearly entire : leaves oval, rather fleshy ; flowers 

 crowded into terminal cymes. Q. H. Native of Sicily, France, 

 between Cetta and Narbonne, and also of the Cape of Good 

 Hope and New Holland, on the sandy sea-coast. Bocc. sic. 

 p. 71. t. 38. Hagea alsinefolia, Biv. manip. 3. p. 7. Lahaya 

 alsinefolia, Schultes, syst. 5. p. 405. Mollia alsinefolia, 

 Schultes, syst. 1. p. 795. Holosteum tetraphyllum, Thunb. fl. 

 cap. p. 120. Polycarpon spec. Sieb. fl. nov. holl. no. 570. 1116- 

 cebrum alsinef olium, Lint, mant. 51. ? Very like P. tetraphyl- 

 lum, but differs in the leaves being smooth and oval ; and in the 

 flowers being pentandrous, larger, fewer, and more crowded. 



Chickneed- leaved All-seed. Fl. Ju. Aug. Clt. 1817. PI. ift. 



4 P. PEPLOIDES (D. C. prod. 3. p. 376.) flowers pentandrous ; 

 petals quite entire ; leaves opposite, obovate; flowers crowded 

 into terminal cymes. % . F. Native of Sicily ; France about 

 Perpignon. Hagea polycarpoides, Biv. manip. 2. no. 3. Mollia 

 Polycarpon, Spreng. nov. prod. p. 28. Lahaya polycarpoides, 

 Schultes, syst. 5. p. 404. Aren&ria peploides, Lapeyr. abr. p. 

 251. but not of Lin. Very like P. tetraphyllum, and, as in it, 

 the leaves are sometimes 4 in a whorl ; but besides these charac- 

 ters, it differs in the leaves being rounder ; cymes denser ; 

 flowers a little larger, and pentandrous, &c. 



Water Purslane-like Polycarpon. PI. foot. 



Cult. The seeds of the annual species of the genus only 

 require to be sown in the open border in spring. The last spe- 

 cies being perennial, should be grown in a small pot, and placed 

 among other alpine plants. 



XVI. CE'RDIA (in honour of Juan de Dios Nizente de la 

 Cerda, an artist attached to the Mexican expedition). Moc. et 

 Sesse, fl. mex. icon. ined. D. C. prod. 3. p. 377. 



LIN. SYST. Mondndria, Monogynia. Calyx 5-parted ; lobes 

 oblong ; petaloid inside, drawn out each into a long mucrone at 

 the apex. Petals wanting. Stamen 1, in front of one of the 

 calycine segments. Ovarium ovate-globose. Style filiform, 

 bifid at the apex. Capsule 1-celled, many-seeded, Dwarf 

 Mexican herbs, intermediate between Herniaria and Pollichia. 

 Roots perennial, simple. Stems spreading. Leaves opposite, 

 or in something like whorls, linear, cuspidate. Stipulas mem- 

 branous, solitary between the opposite leaves. Flowers small, 

 axillary, subpedicellate ; pedicels furnished with 1-2 bracteas. 



1 C. VIRE'SCENS (Moc. et Sesse, fl. mex. icon. ined. ex D. C. 

 prod. 3. p. 377.) leaves opposite. I/ . G. Native of Mexico. 

 D. C. mem. par. t. 2. Flowers greenish-white inside. 



Greenish-flowered Cerdia. PI. pr. 



2 C. PURPURA'SCENS (Moc. et Sesse, 1. c.) leaves 4 together in 



