90 



PARONYCHIE.&. VII. PARONYCHIA. VIII. PENTACJENA. IX. CAEDIONEMA. X. POLYCARP.EA. 



FIG. 22. 



outside. It. H. Native of North 

 America, on the more elevated 

 hills about the Missouri, near 

 Fort Mandan ; on the dry banks 

 of the north branch of the Saskat- 

 chewan, between Carlton House 

 and Edmonton House. Hook. fl. 

 bor. amer. 1. p. 227. t. 75. (f. 

 22.) 



Sessile -flowered Paronychia. 

 PI. foot. 



SECT. III. ACANTHONY'CHIA 

 (from aKavSoe, acanthos, a spine, 

 and ow, onyx, a claw ; in refer- 

 ence to the 3 outer lobes of the 

 calyx, being each furnished with 



an awn-like spine at the apex). D. C. prod. 3. p. 372. Lobes of 

 calyx unequal, 3 outer ones furnished each with an awn-like spine 

 at the apex, 2 inner ones small, and nearly unarmed. Stigmas 2, 

 sessile. 



20 P. ROSE'TTA (St. Hil. fl. bras. 2. p. 188. t. 113.) stems 

 trailing, woolly ; leaves linear-subulate, mucronate, smoothish ; 

 lobes of calyx unequal, 3 outer ones the largest, and furnished 

 with a long mucrone each : 2 inner ones smaller, and nearly awn- 

 less. Flowers crowded in the axils of the leaves. 1/..G. Na- 

 tive of Brazil, in the province of St. Catharine, in sand by the 

 sea side, where it is called by the inhabitants Rosetta. Probably 

 a species of Pentacce na. 



Rosetta Paronychia. PI. tr. 



f Species not sufficiently known. 



21 P. TENUIFOLIA (D. C. prod. 3. p. 372.) stem branched, 

 diffuse, hairy; leaves linear-lanceolate, somewhat ciliated; 

 flowers axillary, longer than the stipulas. 0. H. Native 

 country unknown. Illecebrum tenuifolium, Willd. enum. suppl. 

 p. 12. 



Fine-leaved Paronychia. Fl. June, July. Clt. 1820. PI. 

 procumbent. 



22 P. SEDIFOLIA (Salt. itin. abyss, ed germ. 1. p. 476. ex 

 Rcem. et Schultes, syst. 5. p. 523.) This species is not de- 

 scribed. 



Stone-crop-leaved Paronychia. PI. 



t Plants referred by authors to the genus Paronychia, which 

 are to be excluded. 



1 P. lanuginbsa (Poir. suppl. 4. p. 302.) is probably a 

 species of Gomphrena. 



2 P. Bengalensis (Rcem. et Schultes, syst. 5. p. 521. but not 

 of Juss.) is probably a species of Achyranthes. 



3 P. tenella (Hortul. or Illecebrum tenellum of Desf.) is per- 

 haps a species of Alternanthera. 



4 P. dichotoma (D. C. in Lam. diet, but not of Nutt.) is Her- 

 niaria dichotoma. 



5 P. subulata is Polycarpae'a spadicea. 



6 P. linearifolia is now Polycarpse'a linearifolia. 



Cult. All the species of this genus are well adapted for orna-> 

 menting rock-work, from their dwarf stature, and generally 

 trailing habit. Most of them, however, grow best in small pots 

 in sand and loam, filling the pots half way with sherds ; and 

 they are easily increased by dividing the plants at the root, or 

 by cuttings under a hand-glass, or by seeds. The seeds of the 

 annual species only require to be sown in the open border or on 

 rock-work. Some of the species are marked green-house and 

 frame ; these require to be protected from frost in winter. 



VIII. PENTAGON A (from irtvrf, pente, five, and ara.va, 



akaina, a thorn ; in reference to the 5 spiny lobes of the calyx). 

 Bartling in reliq. Hcenk. 2. p. 5. t. 49. f. 1. 



LIN. SYST. Penldndria, Digynia. Calyx 5-parted ; segments 

 very unequal : 3 outer ones spiny at the apex, and woolly on the 

 margins : 2 inner ones much shorter, boat-shaped, and armed on 

 the back. Stamens 5, without any sterile filaments ; anthers 2- 

 celled. Stigmas 2, short. Fruit 1 -seeded. 



1 P. RAMOSI'SSIMA (Hook, et Am. in bot. misc. 3. p. 248.) 

 stems trailing, woolly ; leaves linear-subulate, mucronate ; lobes 

 of calyx unequal, all linear and hood-formed, ending each in a 

 very long point on the back ; flowers sessile, axillary, crowded. 

 7 . G. Native of Brazil, on the confines of the province of Rio 

 Grande de St. Pedro do Sul, and of the province of Cisplatin ; 

 and among rocks about Monte Video ; of Chili, in Las Achiras, 

 province of Cordova, Valparaiso, and Buenos Ayres ; also of 

 Mexico, at the foot of Mount Orizaba. Paronychia ramosissima, 

 D. C. prod. 3. p. 372. mem. paron. p. 12. t. 4. Loeflingia 

 ramosissima, Weinm. in bot. zeit. p. 608. Pent, polychnemo- 

 noides, Bartl. in Presl. reliq. Haenk. 2. p. 5. t. 49. f. 1. Stipulas 

 scarious, woolly. 



Much-branched Pentacsena. PI. tr. 



Cult. See Paronychia for culture and propagation. 



IX. CARDIONE'MA (from icap&a, cardia, the heart, and 

 vnfia, nema, a filament ; in reference to the sterile filaments 

 being obcordate). D. C. prod. 3. p. 372. Bivonee'a, Moc. et 

 Sesse, fl. mex. ined. but not of D. C. nor Spreng. 



LIN. SYST. Penldndria, Digynia. Calyx 5-parted ; lobes conniv- 

 ing, rather coloured inside, and rather concave, drawn out on the 

 back at the apex into a long straight conical horn each. Petals 

 wanting. Stamens 5, opposite the lobes of the calyx, and inserted 

 in their base ; 2 of which are sterile, obcordate, and flat : and 3 

 fertile, obcordate at the base, bearing each a slender antheriferous 

 filament in the recess ; anthers roundish, 2-celled. Styles 2, 

 hardly concrete at the base, long, revoluie. Fruit 1 -seeded, 

 ovate-oblong. A small many-stemmed herb. Leaves opposite, 

 crowded, rather distich, linear, acute. Flowers sessile, axillary, 

 small, greenish white, each furnished with 5 bracteas, 4 of the 

 bracteas linear and entire, the fifth larger and serrulated. 



1 C. MULTICAU'LE (D. C. prod. 3. p. 373. mem. par. t. 1.) 

 If.. G. Native of Mexico. Bivonae'a multicaulis, Moc. et 

 Sesse, fl. mex. icon. ined. 



Many-stemmed Cardionema. PL small. 



Cult. This plant is to be cultivated and propagated in the 

 same manner as that recommended for the species of Paronychia. 

 It will require protection in winter, by placing it in a frame 

 or green-house. 



Tribe HI. 



POLYCARP^^E (this tribe contains plants agreeing with 

 Pulycarpce'a in important characters). D. C. prod. 3. p. 373. 

 Calyx 5-parted (f. 23. a.). Petals 5 (f. 23. d.) or wanting. 

 Stamens 1-5, inserted in the bottom of the calyx. Styles 2-3, 

 sometimes distinct from the base, and sometimes connected. 

 Capsule 1 -celled (f. 23. e.), many-seeded. Seeds fixed to the 

 central placenta. Herbs or subshrubs. Leaves opposite. Sti- 

 pulas scarious. The stamens in some of the genera are nearly 

 hypogynous, as in Polyc&rpon, and altogether so in Polycar- 

 pcea, Stipulicida, and Ortegia, and therefore these genera verge 

 very closely on the order Caryophyllece, but are distinguished 

 from them in the presence of stipulas, and number of stamens : 

 the habit agrees with ParonychiecE. 



X. POLYCARP^ % A (from TTO\V, poly, many, and Kapwoe, 

 carpos, a fruit ; a name, however, only indicating its affinity with 

 Polycarpon). Lam. journ. hist. nat. 2. p. 8. t. 25. D. C. prod. 

 3. p. 373. St. Hil. fl. bras. 2. p. 182. Hagsea, Vent. tabl. 2. 



8 



