1 42 THE FLORA OF THE ALPS 



47. HERACLEUM, L. 



Involucre various; flowers white, pink, or yellowish; 

 calyx-teeth small or o ; petals generally unequal, with an 

 inflexed point ; fruit orbicular, with narrow wings ; vittae 

 solitary, club-shaped, or o. 



A. Outer flowers of umbel rayed; flowers white or 

 pink ; petals bifid ; leaves pinnate, pinnatifid, or ternate : 

 H. Sphondylium, L., Cow-Parsnip; leaves very large, 

 coarse, pinnate, lobes of larger petals oval, spreading; 

 meadows, very common (H. elegans, Jacq., is a mountain 

 variety). H. montanum, Schleich. (Panaces, Rchb.) ; 

 leaves glabrous or tomentose beneath, segments acumi- 

 nate, lobes of larger petals linear, spreading ; mountain 

 pastures, rare; Zermatt, Ticino, Jura, Styria, Dauphiny, 

 Pyrenees. H. austriacum, L. ; leaves bi-pinnate, leaf- 

 sheaths narrow, flowers white, fruit glabrous; Tirol, 

 Styria, Carniola, Carinthia. H. siifolium, Rchb.; re- 

 sembling the last, but flowers pink, fruit hairy ; Carniola. 



B. Leaves palmate; leaflets cordate at the base; flowers 

 white ; larger petals bifid : H. palmatum, Baumg. ; leaves 

 7-9-lobed, leaflets broad, acuminate, serrate, fruit warty ; 

 Tirol. H. alpinum, L. ; leaves very large, 3-5 lobed, 

 leaflets roundish ; Jura, Valais. H. pyrenaicum, Lam. ; 

 lobes of larger petals oval, lower leaves orbicular in out- 

 line, leaves downy beneath ; Pyrenees, Monte Baldo. 



C. Flowers greenish-yellow ; petals nearly alike : 

 H. sibiricum, Koch (including longifoliuin, Jacq., and 



Jlavescens, Bess.); leaves pinnate, leaflets in about five 

 pairs, serrate ; alpine pastures. 



D. Outer flowers of umbel rayed ; vittae o : H. 



