UMBELLIFER^E. CX. ZOZIMIA. CXI. POLYT^NIA. CXII. JOHREKIA. CXII1. HASSELQUISTIA, &c. 



345 



1 Z. ABSINTHIFOLIA (D. C. prod. 4. p. 195.) stem furrowed ; 

 leaves supra-decompound, hoary and pilose ; leaflets lanceolate, 

 rather remote, and somewhat trifid, cuneate at the base, short. 

 $ . H. Native of the Levant, between Bagdad and Kermancha; 

 of Siberia, about Tiflis ; of Caucasus, on Mount Beschtau, and 

 on the mountains of Talusch, near Swant ; and of Persia in 

 stony places about Seidkhodzi. Heracleum absinthifolium, 

 Vent, choix. t. 22. Schultes, syst. 6. p. 582. Sibth, fl. graec. t. 

 281. Heracleum tomentosum, Smith, prod. 1. p. 192. Tordy- 

 lium absinthifolium, Pers. ench. 1. p. 314. Zozima Orientalis, 

 Hoffm. umb. 1. p. 148. t. 4. Pastinaca incana, Willd. herb, ex 

 Stev. obs. ined. Pastinaca dissecta, Cels. hort. Leaves of in- 

 volucra hoary ; of the involucels about equal in length to the 

 umbellules, which are dense. Fruit villous in the disk between 

 the 3 dorsal ribs ; but smooth on the margins. 



Wormwood-leaved Zozimia. Fl. July, Aug. Clt. 1816. PI. 

 2 feet. 



2 Z. ANETHIFO'LIA (D. C. prod. 4. p. 196.) stem terete; 

 leaves supra-decompound, glabrous, glaucous ; leaflets linear, 

 acute. $ . H. Native of Persia, between Teheran and Ispa- 

 han. Habit of the first species. Involucra small, glabrous. 

 Fruit more of an orbicular form than in H. absinthifolium, and 

 beset with scattered down over the whole disk, but when young 

 rather pilose. 



Fennel-leaved Zozimia. PI. 2 feet. 



Cult. The seeds of these plants should be sown in the open 

 ground in spring. A light soil suits them best. 



CXI. POLYT^E'NIA (from iro\v, poly, many, and ratvia, 

 tainia, vitta ; the mericarps are furnished with many vittae). 

 D. C. coll. mem. v. p. 53. t. 13. prod. 4. p. 197. 



LIN. SYST. Pentdndria, Digynia. Calyx 5-toothed. Petals 

 oval, emarginate, with an indexed point. Fruit oval, compressed 

 from the back, which is lenticular, quite glabrous, with a smooth 

 tumid margin, and a depressed dorsal area. Mericarps with 

 very slender hardly distinct ribs. Vittae twin between the ribs 

 on the back, and 6 in the commissure. Carpophore indistinct. 

 Seed complanate. An American glabrous herb. Upper leaves 

 tripartite, opposite. Lateral flowering branches opposite. Um- 

 bels terminal. Involucra none. Leaves of involucels setaceous. 

 Flowers yellowish in the dried state. This genus is allied on 

 the one hand to Zozimia, and on the other to Tordylium. 



1 P. NUTTA'LLII (D. C. 1. c.) Native of North America, in 

 the Arkansa territory. Tordylium Americanum, Nutt. mss. 

 Stem nearly terete. Leaflets trifid, cuneated at the base ; lobes 

 lanceolate, toothed at the apex. 



Nutlall's Polytaenia. PI. 1 foot. 



Cult. See Zozimia above for culture and propagation. 



CXII. JOHRE'NIA (in honour of Mart. Dan. Johreni, who 

 was the first to introduce the dichotomous method in botany). 

 D. C. coll. mem. v. p. 54. t. 1. f. C. prod. 4. p. 196. 



LIN. SYST. Pentdndria, Digynia. Teeth of calyx obsolete, 

 very blunt. Petals unknown. Stylopodium short, conical, a 

 little furrowed ; styles short, diverging, at length deciduous. 

 Fruit oval, lenticularly compressed from the back, quite gla- 

 brous, rather spongy and suberose, with a tumid smooth margin, 

 and a flat rather coloured dorsal area. Mericarps with 3 dorsal 

 filiform ribs, which at length become brownish, and therefore 

 probably contain vitta; ; the 2 lateral ribs usually indistinct in the 

 dilated margin : but sometimes rufous, and of the form of vittae. 

 Commissure spongy, without any vittae, but furnished with 2 

 lines. Carpophore bipartite. Seed complanate. A quite gla- 

 brous herb, native of the Levant. Stem terete, dichotomous. 

 Lower leaves bipinnate ; leaflets opposite, 2 pairs and an odd 

 one, distant, divided into 2-5 linear acute lobes, which are con- 



VOL. III. 



fluent at the base ; superior leaves parted into 3 linear elon- 

 gated, quite entire lobes ; upper ones reduced to a narrow elon- 

 gated sheath. Umbels of 6-8 rays. Involucrum wanting or of 

 one leaf; involucels of 4-5 linear-setaceous leaves. 



1 J. DICHO'TOMA (D. C. 1. c.) Native of the East, at Mount 

 Lebanon. Hippomarathrum crithmi folio flore luteo, Vaill. herb. 



Dichotomous Johrenia. PI. 1 to 2 feet? 



Cult. See Zozimia above for culture and propagation. 



Tribe VIII. 



TORDYLI'NE^E (plants agreeing with Tordylium in im- 

 portant characters), or Orthospermae paucijugatae annulatae, 

 Koch, umb. p. 55. D. C. prod. 4. p. 196. Fruit lenticularly 

 or flatly compressed from the back, girded by a thick dilated 

 thickened knotted or plicate margin. Mericarps with 5 very 

 slender or obsolete ribs : lateral ribs contiguous to the dilated 

 margin, or forming the same. Seed flat. This tribe differs 

 from tribe Peucedanece, in the margin of the fruit being ribbed 

 or plicate, not smooth, and quite entire. 



CXIII. HASSELQUI'STIA(so named by Linnaeus in honour 

 of his pupil Fred. Hasselquist, M.D. who travelled in the Holy 

 Land, &c. and died at Smyrna in 1752: his travels are pub- 

 lished). Lin. gen. 341. Spreng. umb. prod. p. 11. Koch, umb. 

 88. D. C. prod. 4. p. 197. Tordylium species, Lam. ill. t. 

 193. Lag. am. nat. 2. p. 93. 



LIN. SYST. Penldndria, Digynia. Margin of calyx 5-toothed. 

 Petals obovate, emarginate, with an inflexed point ; outer ones 

 radiant, bifid. Fruit round the rays of the umbels flatly com- 

 pressed, with a somewhat thickened accessory winged margin, 

 which is hardly tubercularly wrinkled ; those of the disk dissi- 

 milar, having one of the mericarps contracted into a hemis- 

 pherical urceolus around the other, which is abortive. Meri- 

 carps with very slender ribs, the 3 dorsal ones at equal distances, 

 and the 2 lateral ones contiguous to the thickened margin, or 

 covered by it. Vittae filiform, one in each furrow, and 2 in the 

 commissure. Carpophore bipartite. Seed flattened. This 

 genus hardly differs from Tordylium unless in the unequal meri- 

 carps of the fruit, and in their margins being hardly wrinkled, 

 and quite smooth in the disk on both sides, as in Heracleum. 



1 H. jEoYPTi^ACA (Lin. amoen. 4. p. 270. exclusive of the 

 synonymes,) stem hispid ; leaves scabrous, pinnate; leaflets pin- 

 natifid ; segments bluntly lobed ; involucra arid involucels small, 

 setaceous. O- H. Native of Egypt and of Syria, on the 

 sea shore. Jacq. hort. vind. t. 87. Tordylium ^Egyptiacum, 

 Lam. ill. t. 193. f. 2. Poir. diet. 7. p. 711. Flowers white. 

 In this species the flowers sometimes have 3-4 styles. Carpo- 

 phore green. Styles white, erect. 



Egyptian Hasselquistia. Fl. July. Clt. 1768. PI. l foot. 



2 H. CORDA'TA (Lin. fil. suppl. p. 179.) plant pubescent; 

 lower leaves ternate ; leaflets ovate, rather cordate ; superior 

 leaves simple, cordate, toothed ; leaves of involucra and invo- 

 lucels numerous, setaceous, reflexed. O- H. Native of the 

 Levant. Jacq. hort. vind. 2. t. 193. Tordylium cordaturn, 

 Poir. diet. 7. p. 712. Rays of umbels hispid. Leaves of invo- 

 lucels subulate, longer than the umbellules. Flowers white. 

 Fruit as in most of the species of Tordylium few, but unequal, 

 as in Hasselquistia. 



Cordate-]eaved Hasselquistia. Fl. July. Clt. 1787. PI. 2 ft. 



Cult. The species being natives of warm climates, the plants 

 are difficult to preserve through the winter. The surest way to 

 procure good seed is to sow in autumn, and preserve the plants 

 in a frame or green-house till spring, when they should be 

 planted out in a warm sheltered situation. 



CXIV. TORDY'LIUM (ropSvXtov of Dioscorides ; said to 



