332 



UMBELL1FER&. XCVI. PEUCEDANUM. 



Slender Sulphur- wort. Fl. May. PI 1 to 2 feet. 



14 P. DU BJUM (Led. fl. alt. 1. p. 310.) stem leafless, branch- 

 ed ; branches scattered : upper branches nearly opposite ; leaves 

 unknown ; sheaths leafless, stem-clasping, chartaceous, perma- 

 nent ; fruit orbicularly elliptic. If. . H. Native of Altaia, in 

 exposed dry sterile places, at the river Tschuja. Habit more 

 robust than that of the preceding species, and the stems more 

 branched and more flexuous. Umbels polygamous. Involucra 

 and involucels wanting, unless they are caducous. Vittae 1 in 

 each furrow, and 4 in the commissure. 



Doubtful Sulphur-wort. PI. 2 to 3 feet. 



15 P. SOONGA'RICUM ; stem leafless from the base to the apex, 

 branched ; upper branches disposed in whorles ; radical leaves 

 clothed with hoary pubescence, 4 or 5 times pinnate ; pinnulaa 

 opposite, pinnate-parted : segments obovate, cut; lobes acute ; 

 involucels very minute. If. . H. Native of the Soongarian 

 desert, between the river Irtysch and the mountains of Dolen- 

 Kara, in saltish places. P. paniculatum, Led. fl. ross. alt. ill. 

 t. 199. fl. alt. 1. p. 311. Involucrutn wanting, unless it be ca- 

 ducous. Umbellules usually proliferous, hermaphrodite and male 

 on the same specimen. Involucels wanting to the hermaphro- 

 dite umbellules, unless they are caducous ; but usually of many 

 lanceolate-linear acute leaves to the male umbellules. Flowers 

 yellow ; petals ovate-oblong. Vittae 1 in each furrow, and 2 in 

 the commissure. Perhaps the same as Ferula Soongarica, Pall, ex 

 Schultes, syst. 6. p. 598. The stem yields a gum which has a taste 

 between gum-Ammoniac and parsley. Habit exactly of Ferula. 



Soongarian Sulphur-wort. Fl. May, June. PI. 3 to 4 feet. 



16 P. AU'REUM (Ait. hort. kew. 1. p. 341.) stem terete; 

 leaves ternately supra-decompound, flaccid ; leaflets pinnatifid, 

 slender : segments linear, acute ; leaves of involucrum 1-3, 

 linear, acute; rays of umbel 40-50; fruit puberulous when 

 young. $ . F. Native of Teneriffe, and the Grand Canary 

 Island, in mountain pastures. Ker, bot. reg. 559. Spreng. umb. 

 spec. p. 58. Sclmltes, syst. 6. p. 570. Ferula aurea, Link, in 

 Buch. can. p. 152. Flowers golden yellow. Fruit, according 

 to Sprengel and the bot. reg., oval, compressed from the back, 

 with 5 ribs and 4 vittae, and crowned by the styles. 



Golden-fton-ered Sulphur-wort. Fl. June. Clt. 1779. PI. 

 3 to 4 feet. 



17 P. CAPILLA'CEUM (Thunb. prod. p. 50. fl. cap. p. 257.) 

 stem terete, striated, naked, nearly simple; radical leaves 5 times 

 trichotomous : segments subulate, furrowed above, stiff"; invo- 

 lucra and involucels of 5-6 lanceolate-subulate leaves. If.. F. 

 Native of the Cape of Good Hope, on the mountains. Sieb. pi. 

 exsic. no. 212. Flowers yellow, according to Thunberg. Fruit 

 ovate, compressed, marginately winged, having 3 elevated ribs 

 on each side, ex Thunb. 



Capillary-leaved Sulphur-wort. PI. 1 foot. 



18 P. TENUIFOLIUM (Thunb. prod. 50. fl. cap. 257. but not 

 of Poir.) stem striated, terete, a little branched ; leaves bipin- 

 natifid : segments lanceolate and alternate, marginated : sheaths 

 broad, stipula-formed at the base of the petioles ; involucra and 

 involucels of 6 leaves. I/. F. Native of the Cape of Good 

 Hope, on the mountains. Spreng. umb. spec. p. 59. Fruit 

 ovate, marginating, winged on the back, with 5 ribs, ex Thunb. 



Fine-leaved Sulphur-wort. PI. 2 to 3 feet. 



19 P. VIRGA'TUM (Cham, et Schlecht. in Linnaea. 1. p. 392.) 

 stem terete, shrubby ; leaves stiff, pinnate ; leaflets lanceolate, 

 quite entire, mucronate, with revolute margins ; involucra and 

 involucels of many short leaves. fj . G. Native of the Cape 

 of Good Hope, on the mountains. Burchell, cat. pi. afr. austr. 

 no. 2869. The whole plant is quite glabrous and coriaceous. 

 Petals ovate, yellow, entire at the apex, or hardly emarginate. 

 Fruit said to be elliptic, with 5 ribs on the back, having a com- 

 planate margin. 



Twiggy Sulphur-wort. Shrub. 



* * Flowers cream-coloured. 



20 P. SCHO'TTII (Bess, in litt. ex D. C. prod. 4. p. 178.) stem 

 terete, a little branched ; leaves pinnate-parted : segments linear , 

 acute, entire or divided ; involucra and involucels none. "if. . H. 

 Native of Volhynia and Podolia. Imperatoria Chabrse'i, Bess, 

 fl. gall. Very like Palimbia Chdbrce'i, but differs in the lobes of 

 the leaves being more diverging, in the rays of the umbels being 

 quite smooth, in the involucels being wanting, and in the furrows 

 being furnished with one vittae each. x 



Sclwlt's Sulphur-wort. PI. 2 to 3 feet. 



21 P. ORIENTA'LE ; stem terete, branched, fistular ; leaves 

 pinnate ; leaflets bipinnatifid ; lobes linear-oblong, acute ; invo- 

 lucrum wanting ; involucels of a few leaves. Ti . H. Native 

 of Nipaul, on the Himalaya at Gosaingsthan. P. dissectum, 

 D. C. prod. 4. p. 178. but not of Led. Sellnum? dissectum, 

 Wall. mss. Habit of JEthusa or Thyssellnum. Fruit nearly 

 orbicular, with a narrow margin. Vittae all evident, solitary in 

 the furrows, and twin in the commissure. Flowers cream-co- 

 loured or greenish, according to the dried specimen. 



Eastern Sulphur-wort. PI. 1 to 2 feet. 



* * * Flowers while. 



22 P. PARISIE'NSE (D. C. fl. fr. 4. p. 336.) stem terete, a little 

 branched ; leaves 3 or 4 times 3-parted : leaflets linear, nerved, 

 divaricate; involucra of 8-10 linear-subulate leaves ; leaves of the 

 involucels setaceous. If. . H. Native about Paris, in dry fields ; 

 and of Occitania. Jaum, pi. fasc. 3. p. 296. P. officinale, 

 Thuil. fl. par. 140. but not of Lin. P. Gallicum, Pers. ench. 1. 

 p. 310. P. Gallicum var. a, Spreng. in Schultes, syst. 6. p. 

 565. exclusive of var. /3. Fruit oblong, ex Spreng. Commis- 

 sure furnished with 2 vittae, ex Koch. Flowers white. 



Parisian Sulphur-wort. Fl. May, July. Clt. 1800. PI. 4 

 to 5 feet. 



23 P. GLAU'CUM (D. C. prod. 4. p. 179.) stem terete, 

 branched ; leaves biternate ; leaflets broad-linear, elongated, 

 acuminated, with a few awned serratures ; involucra and invo- 

 lucels wanting ; fruit with membranous wings, "if. . H. Native 

 of Nipaul, and at Deyra-Dhoon. Selinum? glaucum, Wall. mss. 

 Flowers white, but rose coloured in a dried state. The fruit is 

 nearly like that of section 4, but the involucra are wanting. 

 Commissure furnished with 2 curved vittae. 



Glaucous Sulphur-wort. PI. 2 to 3 feet. 



24 P. VAGINA'TUM (Led. fl. ross. alt. ill. t. 808. fl. alt. 1. p. 

 312.) root creeping; stem simple; leaves pinnate ; pinnae op- 

 posite, pinnate ; leaflets alternate, pinnate-parted, or tripartite, 

 or entire : segments linear, acute ; sheaths membranous ; invo- 

 lucrum wanting ; leaves of involucels linear, length of umbel- 

 lules. 1^. H. Native of Altaia, in meadows at the rivers 

 Irtysch, and Koksun. Flowers white ; petals tapering into an 

 inflexed point. Vittse 2 in each furrow, and 4 in the commis- 

 sure. Stylopodium and styles purple. Margin of mericarps 

 broad. 



far. /3, pumilum (Led. fl. alt. 1. c.) differs from the species in 

 the stems being only 3 inches high, furnished with leaves at the 

 root ; mericarps nearly one-half smaller. 



Sheathed Sulphur-wort. PI. \ to 1 foot. 



SECT. II. THYSSELI'NUM (from 8vo>, thyo, to burn incense, and 

 aeXtvov, selinon, parsley ; acrid juice of the plants). Hoffm. umb. 

 p. 153. Spreng. umb. spec. p. 70. Gaudin. fl. helv. 2. p. 331. D. 

 C. prod. 4. p. 179. Thyoselinum, Riv. pent. t. 19,20. Spreng. 

 syst. 1. p. 895. Margin of mericarps narrow. Vittae in the 

 commissure 2, covered by an indusium. Universal involucra of 

 many leaves. Flowers white. Perhaps this section may con- 

 stitute a proper genus. 



