332 
Slender Sulphur-wort. Fl. May. Pl. 1 to 2 feet. 
14 P. pu'srum (Led. fi. 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. 2. 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. Vitte 1 in 
each furrow, and 4 in the commissure. 
Doubtful Sulphur-wort. Pl. 2 to 3 feet. 
15 P. Soonca’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 ; pinnulæ 
opposite, pinnate-parted: segments obovate, cut; lobes acute ; 
inyolucels very minute. 2%. 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. Involucrum 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. Vittæ 1 in each furrow, and 2 in 
the commissure. Perhaps the same as Férula Soongarica, Pall. ex 
Schultes, syst. 6. p. 598. The stem yields a gum which hasa taste 
between gum-Ammoniac and parsley, Habit exactly of Férula. 
Soongarian Sulphur-wort. Fl. May, June. PI. 3 to 4 feet. 
16 P. avu’reum (Ait. hort. kew. 1. p. 841.) 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. Schultes, syst. 6. p. 570. Férula atrea, 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 vittze, and crowned by the styles. 
Golden-flowered Sulphur-wort. Fl, June. Clt. 1779, 
3 to 4 feet. 
17 P. capitva‘ceum (Thunb. prod. p. 50. fi. 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 Janceolate-subulate leaves. YJ. F. 
Native of the Cape of Good Hope, on the mountains. Sieb. pl. 
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. P]. 1 foot. 
18 P. renuirotium (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. X. 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. Pl. 2 to 3 feet. 
19 P. virca'tum (Cham. et Schlecht. in Linnzea. 1. p. 392.) 
stem terete, shrubby ; leaves stiff, pinnate; leaflets lanceolate, 
quite entire, mucronate, with revolute margins; involucra and 
involucels of many short leaves, h.G. Native of the Cape 
of Good Hope, on the mountains, Burchell, cat. pl. 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. 
Pi. 
UMBELLIFERH. XCVI. Preucepanum. 
Shrub. 
* * Flowers cream-coloured. 
20 P, Scuo’rrn (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. 2. H, 
Native of Volhynia and Podolia, Imperatéria Chabræ'i, Bess. 
fl. gall. Very like Palimbia Chabre‘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 vittee each. 
Schott’s Sulphur-wort. Pl. 2 to 3 feet. 
21 P. Ortenta‘LE; stem terete, branched, fistular; leaves 
pinnate; leaflets bipinnatifid ; lobes linear-oblong, acute; inyo- 
lucrum wanting; involucels of a few leaves. 2%. H. Native 
of Nipaul, on the Himalaya at Gosaingsthan. P. disséctum, 
D. C. prod. 4. p. 178. but not of Led. Selinum ? disséctum, 
Wall. mss. Habit of Æthùsa or Thysselinum. Fruit nearly 
orbicular, with a narrow margin. Vittæ 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. Pl, 1 to 2 feet. 
* © * Flowers white. 
22 P. Panistr'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, 2. H. Native about Paris, in dry fields ; 
and of Occitania. Jaum, pl. fasc. 3. p. 296. P. officinale, 
Thuil. fl. par. 140. but not of Lin, P. Gállicum, Pers. ench. 1. 
p- 310, P. Gallicum var. a, Spreng. in Schultes, syst. 6. p. 
565. exclusive of var. B. Fruit oblong, ex Spreng. Commis- 
sure furnished with 2 vittæ, ex Koch. Flowers white. 
Parisian Sulphur-wort. Fl, May, July. Clt. 1800, PI, 4 
to 5 feet. 
23 P. crav’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. 2. H. Native 
of Nipaul, and at Deyra-Dhoon. Selinum? glaticum, Wall. mss. 
Flowers white, but rose coloured in a dried state. The fruit 1s 
nearly like that of section 4, but the involucra are wanting, 
Commissure furnished with 2 curved vittee. 
Glaucous Sulphur-wort. PI. 2 to 3 feet. 
24 P. vacina‘rum (Led. fl. ross, alt. ill. t, 808. fl. alt. 1, p. 
812.) root creeping ; stem simple; leaves pinnate ; pinnæ op- 
posite, pinnate ; leaflets alternate, pinnate-parted, or tripartite, 
or entire: segments linear, acute; sheaths membranous; Inv0- 
Tniggy Sulphur-wort. 
. lucrum wanting; leaves of involucels linear, length of umbel- 
lules. %. H. Native of Altaia, in meadows at the rivers 
Trtysch, and Koksun. Flowers white; petals tapering into an 
inflexed point. Vittæ 2 in each furrow, and 4 in the commis- 
sure. Stylopodium and styles purple. Margin of mericarps 
broad. = 
Var. B, pimilum (Led. fl. alt. 1. c.) differs from the species n 
the stems being only 3 inches high, furnished with leaves at the 
root; mericarps nearly one-half smaller. 
Sheathed Sulphur-wort. Pl. 4 to 1 foot. 
Secr. II. TuysseL NUM (from vw, thyo, to burn incense, and 
ceuvor, selinon, parsley ; acrid juice of the plants). Hoffm. n 
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. ae 
syst. 1. p. 895. Margin of mericarps narrow. Vitte in t A 
commissure 2, covered by an indusium, Universal involucra 0 
many leaves. Flowers white. Perhaps this section may con 
stitute a proper genus, 
