UMBELLIFERJE. XCVI. PEUCEDANUM. 



331 



ations, particularly on rocks. P. officinale, Ledeb. fl. alt. 1 . p. 

 304. Bieb. fl. taur. 1. p. 215. in a note, 2. p. 214. no. 538. 

 Segments of leaves covered with copious pellucid dots. Invo- 

 lucra for the most part of 3 leaves : of these 1 is lanceolate, 

 the other lanceolate-linear, and the third filiform, 2 are caducous, 

 and the third permanent. This species differs from P. officinale 

 in the margins of the leaves being cartilaginously serrated, and 

 in the fruit being smaller, &c. 



Far. /3 ; leaves biternate ; leaflets 5-6 inches long ; rays of 

 umbel and umbellules elongated and divaricated. 



Ledebour's Sulphur-wort. Fl. June, July. PL 3 to 4 feet. 



4 P. ELAVriiM (Led. fl. ross. alt. ill. t. 305,) stem terete ; leaves 

 glabrous, 3 or 4 times pinnate ; pinnulae pinnate ; leaflets pinna- 

 tifid or cut or entire : lobes linear, acuminated, with smooth 

 margins ; primordial umbel nearly sessile ; involucrum wanting ; 

 involucels short. "!(.. H. Native of Altaia, every where in ex- 

 posed places on the declivities of mountains. Primary and 

 secondary ramifications of the leaves opposite, but the pinnulae 

 are alternate. Petals deep yellow : those of the male flowers 

 ovate-oblong, attenuated : those of the hermaphrodite flowers 

 obovate, all having indexed points. Vittae almost the length of 

 the mericarps, 1 in each furrow, and 2 in the commissure. 



Tall Sulphur-wort. Fl. May, June. PI. 5 feet. 



5 P. LONGIFOLIUM (Waldst. et Kit. pi. rar. hung. 3. t. 251.) 

 stem terete, branched a little ; leaves 5 times tripartite ; leaflets 

 triquetrously setaceous, channelled, elongated ; involucra want- 

 ing or of one leaf; fruit with very narrow wings. If.. H. Na- 

 tive of Hungary, on calcareous rocks. Schultes, syst. 6. p. 567. 

 Host, fl. austr. 1. p. 366. Petioles of radical leaves terete. 

 Flowers yellow. Fruit with 5 ribs, and 4 vittae on the back ; 

 and the commissure with 2 vittae. 



Long-leaved Sulphur-wort. Fl. June, July. Clt. 1 823. PI. 

 4 to 5 feet. 



6 P. RUTHE'NICUM (Bieb. fl. taur. and suppl. no. 539.) stem 

 terete ; leaves triternately divided : segments or leaflets acute, 

 1 -nerved, very long ; involucra nearly wanting; pedicels length 

 of fruit. If. H. Native of Caucasus, Tauria, and the south of 

 Russia. P. Tauricum, Spreng. umb. spec. p. 53. Ferula 

 Ruthenica, Spreng. umb. prod. 14. pug. 1. p. 27. This species 

 differs from P. officinale in the leaves being less divided, in the 

 segments or leaflets being longer, and in the pedicels being one- 

 half shorter. 



Far. ft, Tauricum (Bieb. fl. taur. p. 540.) leaves 5 times tri- 

 partite ; segments or leaflets linear, acute, short. 1. H. Na- 

 tive of Tauria and Caucasus, in mountain meadows. 



Russian Sulphur-wort. Fl. May, June. Clt. 1818. PI. 3 

 to 4 feet. 



7 P. MORISONI (Bess, in Schultes, syst. 6. p. 567. in a note,) 

 stem unknown ; leaves triternately divided : leaflets linear, acute, 

 long, stiff, 3-5-nerved ; involucra wanting; involucels of many 

 setaceous leaves. Tf. . H. Native of Siberia. Ligusticum longi- 

 folium, Willd. spec. 1. p. 1428. Peucedanum, Mor. oxon. 3. 

 sect. 9. t. 15. f. 1. Vittae 2 in the commissure, but usually 4, 

 ex Koch, umb. 93. 



Morison's Sulphur-wort. PI. 3 to 4 feet. 



8 P. BESSERIA'NUM (D. C. prod. 4. p. 177.) stem terete, a 

 little branched ; leaves triternate ; leaflets linear, nerved, divari- 

 cate ; involucrum nearly wanting ; involucels of a few very short 

 leaves. Tf.. H. Native on hills about Odessa. Ferula Bes- 

 seriana, Spreng. in litt. Peucedanum species, Bess, in litt. 

 Herb and leaves nearly as in P. Parisiense, but the flowers are 

 yellow, and commissure is furnished with 4, not with 2 vittae. 

 Teeth of calyx short, not as in P. officinale subulate. Rays of 

 umbel nearly equal. Fructiferous pedicels 3-6 lines long, not 

 as in P. officinale an inch long. 



Besser's Sulphur-wort. PI. 3 to 4 feet. 



9 P. ARENA'RIUM (Waldst. et Kit. pi. rar. hung. 1. t. 20.) 

 stem terete, striated, branched ; leaves tripinnate ; leaflets linear, 

 obtuse, stiffish, short ; involucra nearly wanting; rays of umbel 

 few, unequal ; leaves of involucels linear-subulate. %. H. Na- 

 tive of Hungary, in sandy places; and of Transylvania, in cal- 

 careous places ; and of the south of Podolia. Spreng. umb. 

 spec. 51. Schultes, syst. 6. p. 568. Bess. cont. p. 43. Allied 

 to Palimbia Chabroe'i. Vittae one in each furrow, and 4 in the 

 commissure, ex Koch, umb. 93. 



Sand Sulphur-wort. Fl. June, July. Clt. 1816. PI. 2 to 3 ft. 



10 P. SIBI'RICUM (Willd. spec. 1. p. 1406. Koch, umb. p. 93.) 

 stems terete, almost without leaves ; cauline sheaths large, prui- 

 nosely glaucous ; radical leaves on long petioles, triply pinnate, 

 stifF, shining; leaflets linear, cuspidate, with serrulated margins; 

 involucrum almost wanting ; central umbel sessile : lateral ones 

 pedunculate. I/ . H. Native of Croatia, Bessarabia, Caucasus, 

 and Siberia. Ferula Tatarica, Fisch. in litt. Spreng. umb. prod. 

 14. exclusive of the synonymes. Bieb. suppl. p. 219. Ferula 

 Sibirica, Spreng. in Schultes, syst. 6. p. 592. Vittae 1 in each 

 furrow, but sometimes 2 in the lateral furrows, and always 4 in 

 the commissure ; lateral vittse usually incomplete, and sometimes 

 wanting in the same specimen. Habit and flowers like P. are- 

 narium. The plant from Croatia is probably different from that 

 of Siberia. 



Siberian Sulphur-wort. Fl. June, July. Clt. 1804. PI. 3 

 to 4 feet. 



11 P. DISSE'CTUM (Led. fl. ross. alt. ill. t. 181. fl. alt. 1. p. 

 306.) stem terete, leafy ; superior branches in whorles ; sheaths 

 spreading ; leaves pubescent, 4 times pinnate ; pinnulae oppo- 

 site, petiolate, pinnate ; leaflets pinnatifid or entire : segments 

 oblong, rather bifid ; primordial umbels nearly sessile ; involu- 

 cra and involucels very minute. I/ . H. Native of Altaia, on 

 hills at the river Talowka, near Buchtorminsk. Involucrum of 

 one or few minute setaceous leaves. Petals golden yellow, ovate, 

 acute, inflexed. Ribs of fruit filiform. Vittae 1 in each fur- 

 row, and 2 in the commissure. 



Dissected-leaved Sulphur-wort. Fl. June. PI. 4 feet. 



12 P. CANE'SCENS (Led.fl.ross.alt.il!. t. 105. fl. alt. 1. p. 

 307.) stem terete, leafy ; intermediate branches opposite and 

 tern ; sheaths closely adpressed ; leaves clothed with hoary pu- 

 bescence, 3 times pinnate ; pinnulae opposite, petiolate, pinnate ; 

 lower segments pinnatifid : upper ones confluent : lobes broad- 

 ovate, tridentate or entire, acute ; involucrum wanting or of one 

 leaf; involucels of many short leaves. I/.. H. Native of Al- 

 taia, on rocks on Mount Arkaul. Leaves of involucels many, 

 lanceolate, acute, with a yellow keel, and white margins. 

 Flowers deep yellow. Petals ovate, acuminated, inflexed. Fruit 

 not seen. 



Canescent Sulphur-wort. Fl. May. June. PI. 1 to 2 feet. 



13 P. GRA'CILE (Ledeb. fl. ross. alt. ill. t. 306. fl. alt. 1. p. 

 308.) stem leafless, branched ; branches scattered ; radical leaves 

 clothed with hoary pubescence, but at length becoming glabrous, 

 bipinnate ; pinnulae opposite, pinnate ; leaflets nearly opposite, 

 rather trifid ; sheaths leafless, stem-clasping, chartaceous, per- 

 manent. Tf.. H. Native of Altaia, in dry saltish open places 

 in the Kirghisean-steppe, between Buchtorminsk and the lake 

 called Noor-Saisan. Root thick. Involucra and involucels 

 wanting, or of one or two leaves, which are formed from the 

 pedicels becoming abortive and leaf-like. Flowers polygamous, 

 those in the terminal umbels hermaphrodite and fertile ; and 

 those in the lateral umbels male. Vittae 1 in each furrow, and 

 4 in the commissure. Petals golden yellow, obovate, acute, in- 

 flexed. Habit of a species of Ferula, and probably the same 

 as Ferula pumila, Pall, ex Schultes, syst. 6. p. 598. 



Far. ft, microcdrpum (D. C. prod. 4. p. 309.) seed one-half 

 smaller than in the species, 

 u u 2 



