UMBELLIFERjE. XXII. POZOA. XXIII. ASTERISCIUM. XXIV. ACTINOTUS. XXV. PETAGKIA. 



263 



nent. . Petals entire. Fruit prismatically tetragonal, 5-ribbed, 

 crowned by the calyx, emarginate at the apex ; mericarps con- 

 cave and channelled on the back : lateral ribs close, nearly in 

 straight lines ; commissure much contracted. Herb. Leaves on 

 long petioles, simple, cuneated, profoundly toothed at the apex, 

 quintuple nerved. Umbels simple. Involucrum obsoletely lobed, 

 crenately toothed, many nerved : nerves branched a little. This 

 genus is allied to Astrantia and Mullnum. 



1 P. CORIA'CEA (Lag. gen. et spec. 1. c.) If.. F. Native of 

 the Cordillera of Chili, in various places at Santa Madre Los 

 Impossibles, and other places on the Andes of Chili between 

 Mendoza and Chili. Mullnum angulatum, D. C. prod. 4. p. 86. 

 Hacquetia bracteogama, D. C. prod. 4. p. 668. 



Coriaceous Pozoa. PI. -| foot. 



N.B. There are two other species of this genus mentioned 

 by Lagasca in am. nat. 2. p. 94. under the names of P. dentim- 

 lata and P. inclsa, but these he has not described. 



Cult. See Fragbsa, p. 259. for culture and propagation. 



XXIII. ASTERI'SCIUM (from a<7njp, aster, a star ; in re- 

 ference to the starry involucels or umbels). Cham, and Schlecht. 

 in LinnEea. 1. p. 254. t. 25. f. I. D. C. prod. 4. p. 82 Pozoa, 

 spec. Spreng. syst. 2. p. 116. Cassidocarpus, Presl, in herb. 

 Hsenke. 



LIN. SYST. Penldndria, Digynia. Calyx 5-toothed, perma- 

 nent : teeth ovate. Petals ending in an inflexed point, emargi- 

 nate, with the recess callous. Fruit compressed, tetragonally 

 prismatic, crowned by the calyx, rounded at the base ; mericarps 

 5-ribbecl, 2 intermediate ribs expanded into wings, central one 

 as well as the 2 placed near the raphe stripe-formed : having the 

 furrows between the ribs destitute of vittse ; commissure very 

 narrow. Seed unknown. Quite glabrous perennial herbs. 

 Stems terete, branched, few-leaved. Leaves petiolate, simple, 

 roundish-cuneated, unequally toothed, somewhat 3-lobed, 3-5- 

 nerved, rather coriaceous. Umbels simple, nearly globose. In- 

 volucrum many leaved, shorter than the umbel. Flowers either 

 sterile and male, on long pedicels, or fertile and hermaphrodite in 

 the same umbel. This genus differs from Pozoa and Mullnum 

 in the petals being emarginate, not entire. 



1 A. CHILE'NSIS (Cham, et Schlecht. 1. c.) leaves 3-lobed, 

 deeply serrated ; peduncles elongated, scattered ; petals deeply 

 emarginate, ending in a long involute point ; fruit narrowest at 

 the base ; leaves of involucrum lanceolate, cut. l/.F. Native of 

 Chili, in dry sandy places about Talcaguano, and about Concep- 

 tion ; Cuesta de Zapata, at the elevation of 6,000 feet ; cliffs by 

 the sea side at Valparaiso. Hook. bot. misc. 1. p. 332. t. 67. 

 A. Anisillo vulgo Mouchu, Feuill. chil. 3. t. 2. 



Far. ft, Hcenlcei (D. C. prod. 4. p. 82.) lower leaves round- 

 ish, undivided, acutely few- toothed at the apex : upper leaves 

 trifid. If.. F. Native of Chili. Cassidocarpus Chilensis, Presl, 

 in herb. Haenke. Eryngium tricuspidatum, Domb. herb. 



Chili Asteriscium. PI. ^ foot. 



2 A. POEPPI'GII (D. C. prod. 4. p. 82.) leaves deeply trifid ; 

 lobes obovate, obtuse, regularly toothed. If. . F. Native of 

 Chili. Very like the preceding, but differs in the lobes of the 

 leaves and recesses being obtuse, and regularly toothed all 

 around. 



Poeppig's Astericium. PI. -| foot. 



3 A. POLYCE'PHAI.UM (Gill, et Hook, in bot. misc. 1. p. 332. 

 t. 67. /3,) plant leafless ? peduncles corymbose, numerous, some- 

 times abortive and spinose ; petals entire, acute, with an invo- 

 lute apex ; fruit broadly oblong ; leaves of involucrum linear, 

 entire. If. . F. Native of Chili, in the valleys on the Andes 

 near Ladera de la Jaula, and towards Uspallata in the province 

 of Mendoza, at the elevation of 7,500 feet. Mulinum Diptery- 



gia, D. C. prod. 4. p. 80. The reflexed petals of this species 

 and the next forbid their being united to Mullnum. 



Many-headed Asteriscium. PI. foot. 



4 A. ISATIDICA'KPUM (Hook, et Arn. in bot. misc. 3. p. 

 352.) stem much branched; branches terete; umbels many, 

 few-flowered, disposed in panicles ; involucra of few leaves ; 

 fruit oval, parallelly biscutate ; mericarps approximate. If. . F. 

 Native of the Cordillera of Chili. Mulinum isatidicarpum, D. C. 

 prod. 4. p. 80. Dipterygia isatidicarpa, Presl, mss. Umbels 

 small, very numerous. Carpophore bipartite ; mature mericarps 

 yellow, rather cuneated at the base. 



I satis-fruited Asteriscium. PI. -j foot. 



Cult. See Fragbsa, p. 259. for culture and propagation. 



Tribe III. 



SANICU'LEJE (this tribe contains plants agreeing with Sani- 

 cula in important characters). D. C. prod. 4. p. 82. or Umbel- 

 latae imperlectae Orthospermae turgidae, Koch. umb. 138. Um- 

 bellatas disciscentes, Spreng. in Schultes, syst. 6. p. 30. exclu- 

 sive of 3 genera. Transverse section of fruit nearly terete. 

 Mericarps covered with scales, furnished with 5 equal primary 

 ribs, without any secondary ones, and destitute of vittas. Trans- 

 verse section of seed semi-terete, flattish in front. Petals erect, 

 bent inwards from the middle, and emarginate. Umbels fasci- 

 culate or capitate, simple or irregularly subcompound. 



XXIV. ACTINO'TUS (from O.KTIV O.KTIVOQ, actin actinos, a 

 ray ; involucrum). Labill. nov. holl. (1804) l.p. 67. t. 92. R. 

 Br. gen. rem. p. 25. D. C. prod. 4. p. 83. Eriocalia, Smith, exot. 

 bot. (1805) 2. p. 37. t. 78-79. Spreng. in Schultes, syst. 6. p. 

 31. and G39. Lag. am. nat. 1821. no. 2. p. 105 Proustia, 

 Lag. in litt. 1807. but not of D. C. 



LIN. SYST. Pent&ndria, Digynia. Tube of calyx ovate, con- 

 tracted at the top ; limb 5-lobed : lobes oval-oblong. Petals 

 wanting. Stamens opposite the calycine lobes. Styles 2, thick- 

 ened at the base and villous, but setaceous at the apex. Ova- 

 rium 1-ovulate. Fruit ovate, villous, marked by 5 stripes, and 

 crowned by the calyx. Erect branched Australian herbs. 

 Leaves alternate, petiolate, variously cut. Umbels simple, many 

 flowered, capitate ; pedicels very short; involucrum many leaved, 

 radiating, longer than the flowers. 



1 A. HELIA'NTHI (Labill. nov. holl. 1. p. 67. t. 92.) the whole 

 plant clothed with tomentose wool ; leaves bipinnatifid : lobules 

 blunt ish ; involucrum 10-18-leaved, clothed with soft tomentum. 

 $. G. Native of New Holland, about Port Jackson, &c. 

 Eriocalia major, Smith, exot. bot. t. 78. Involucrum expanded 

 li or 2 inches in diameter, yellow. Flowers white. 



Sun-flower Actinotus. Fl. June. Clt. 1821. PI. 2 feet. 



2 A. MI'NOR (D. C. prod. 4. p. 83.) plant smoothish ; leaves 

 clothed with adpressed villi beneath, ternate ; segments or leaf- 

 lets trifid, acute; involucrum 9-10-leaved, acute, clothed with 

 silky villi. Q. H. Native of New Holland, on the Eastern coast. 

 Eriocalia minor, Smith, exot. bot. t. 79. Sieb. pi. exsic. nov. 

 holl. no. 127. Involucrum expanded, 5 lines in diameter, red. 



Smaller Actinotus. PI. 1 foot. 



Cult. The seeds of these plants may be reared on a hot-bed 

 in spring, and in the month of May the plants should be planted 

 out in the open border in a warm situation, where they will 

 flower and seed freely. 



XXV. PETA'GNIA (in honour of Vincent Petagna, a Nea- 

 politan botanist, author of Institutiones Botanicae, in 5 vols. 8vo. 

 Naples, 1785-1787). Guss. prod. fl. sic. 1. p. 311. and in litt. 

 D. C. coll. mem. v. p. 35. but not of Gmel. nor Rafin. Hete- 

 rosciadium, D. C. mss. in herb. Balb. 



LIN. SYST. Pentdndria, Digijnia. Umbellules containing only 



