138 37. UMBELLIFERE. 
triternate with long footstalks tapering downwards.—Sandy and 
gravelly pastures. P.V.VI. Pig-nut. 
2. B. Bulbocastanum (L.); general and partial involucres of 
numerous leaves, fr. oblong crowned with the short stylopode 
and reflexed styles, interstices with single vitta.—E. B. S. 2862. 
Carum Koch, DC.—Involucres always present. Lower 1. bipin- 
nate, with a triangular outline, rather numerous near the base of 
the stem, rarely 1 or 2 radical upon long footstalks tapering down- 
wards.—Chalky fields in Camb. and Herts. P. VI. VII. E. 
14, Prmpineya Linn. 
1. P. magna (L.); 1. pinnate, leaflets all ovate serrate some- 
what cut the terminal one 3-lobed, st. angularly striate—E. B. 
408 .—St. 1—2 feet high, leafy. Lateral leaflets sometimes3-lobed. 
Styles longer than the ovary, as long or longer than the oval 
fruit.—Shady hills. P. VII. VIII. E. I. 
2. P. Saxifraga (L.); 1. pmnate, leaflets of the lower 1. 
roundish-ovate serrated somewhat cut, those of the stem-l. bipin- 
natifid with linear segments, st. terete, ped. ee are B. 407. 
—St. 1—2 feet high, naked above. Styles shorter than the 
ovary. L. sometimes all pinnatifid—[P. nigra (Willd.) has 
densely pubescent peduncles. ]—Dry pastures. P. VII.—IX. 
15. Ssum Linn. 
* Vitte superficial. Lateral ridges marginal. Stylopode de- 
pressed. Stum Koch. 
1. S. latifolium (L.); 1. pmnate, leaflets oblong-lanceolate 
equally serrate pointed, involucres of many lanceolate leaves.— 
E. B.204.—Ridges of the carp. obtuse rounded. St. 3—5 feet 
high, angular, furrowed. Leaflets very large, distant, 43—6} 
pairs on a leaf.—Ditches and rivers, rare. P. VII. VIII. 
** Vitte deeply seated. Lateral ridges not marginal. Stylo- 
pode shortly conical. Brruia Koch. 
2. S. angustifolium (L.); 1. pimnate, leaflets unequally lobed 
and cut ovate, of the stem-l. lanceolate, inv. of many lanceolate 
entire or cut leaves—E. B. 139.—Ridges of the carp. but shghtly 
prominent. St. 1-—3 feet high, round, striated. Leaflets often 
very deeply cut and lobed.—Ditches. P. VIII. 
16. BurLeurum Linn. 
* Fruit granulated. 
1. B. tenutssimum (L.); st. branched, |. lmear acute, umbels 
lateral and terminal minute, partial umbels of 3—5 flowers usu- 
