Laserpitium L.

98. Laserpitium L. View in CoL 1

Leaves several times pinnate or ternate. Sepals conspicuous, ovate to subulate. Petals white, pinkish, pale yellow or greenish-yellow, obcordate; apex inflexed. Fruit ellipsoid or oblong, broadly ovoid or rectangular, terete or slightly compressed dorsally. Primary ridges inconspicuous, secondary winged, the lateral wings usually larger than the dorsal.

1 Leaf-lobes divided into numerous narrow lobes 2 Rays 15 or more 9. halleri 2 Rays 7-9 11. pseudomeum 1 Leaf-lobes entire, dentate or with few broad lobes 3 Bracts not ciliate, often 0 4 Leaf-lobes entire

5 Rays 2-15 6. peucedanoides

5 Rays 20-50 1. siler

4 Leaf-lobes crenate to dentate

6 Bracts of primary umbel numerous, persistent 2. latifolium

6 Bracts of primary umbel 0-5, caducous

7 Leaf-lobes suborbicular, shallowly crenate-dentate; fruit very narrowly winged 3. longiradiutn

7 Leaf-lobes ovate or broadly ovate, strongly dentate or crenate-dentate; lateral wings of fruit 1-2 mm wide

8 Wings of fruit equal 4. nestleri

8 Lateral wings of fruit much wider than dorsal 5. krapfii

3 Bracts ciliate, always numerous 9 Stock without fibres; petals with scattered hairs beneath 10 Upper petioles narrow; rays rough on the inner side

12. prutenicum

10 Upper petioles somewhat inflated; rays hispid 13. hispidum

9 Stock with fibres; petals glabrous beneath 11 Upper petioles strongly inflated; stem hollow; leaf-lobes with a ± regular isodiametric network of veins

7. archangelica

11 Upper petioles narrow, appressed; stem solid; leaf-lobes with an obscure or irregular and elongated network of veins

12 Membranous margin of bracteoles narrower than herbaceous middle part; sepals triangular-ovate

10. gallicum

12 Membranous margin of bracteoles as wide as herbaceous middle part; sepals lanceolate-subulate 8. nitidum