UMBELLIFER^ 141 



white ; stony hills ; Western and Southern Switzerland, 

 Styria, Carinthia. P. raiblense, Koch ; resembling the 

 last, but leaf-segments narrowly linear ; rare ; Ticino, 

 Southern Tirol, Carinthia, Carniola. 



C. General involucre of four or more bracts ; edges of 

 carpels narrow ; leaf-stalk triangular, channelled above : — 

 P. venetunij Koch; flowers white, involucre spreading, 

 umbels small, stem furrowed, leaf-segments linear-lanceo- 

 late ; stony hills ; Southern Switzerland, Tirol. P. Oreo- 

 selinumj Monch. ; flowers white, involucre reflexed, fruit 

 orbicular, leaves green on both sides, segments deeply 

 incised; dry hill-sides. P. Cervarza, Cuss.; flowers 

 white or pink, involucre reflexed, fruit ovoid, leaves glau- 

 cous beneath, segments with mucronate teeth ; dry hills. 

 P. alsaticum, L.; flowers yellow, involucre spreading, 

 fruit ovoid, leaves green on both sides ; Jura, Pyrenees. 



D. General involucre of four or more bracts, leaf-stalk 

 cylindrical : — P. palustrey L. ; flowers small, white, um- 

 bels large, fruit ovoid, on a long stalk, leaflets lanceolate, 

 plant very glabrous ; marshes. 



46. Pastinaca, L. 



General and partial involucre o ; flowers small, white ; 

 calyx-teeth o ; fruit with rather narrow wings ; leaves 

 simply pinnate. Not alpine. 



P. sativa^ L. {Peucedanu^n sativum^ Benth.), Wild 

 Parsnip; stem pubescent, leaflets in 2-5 pairs, broad, 

 pubescent; waste places, common. P. opaca^ Bernh.; 

 resembling the last, but taller, the umbels smaller, pubes- 

 cence denser ; Switzerland. 



