HO THE FLORA OF THE ALPS 



inflexed point ; fruit winged ; vittae solitary. Not 

 alpine. 



L. officinale, Koch; stem thick, hollow, 4-6 ft., leaves 

 large, glabrous, bi- or ter-pinnate with rhomboidal seg- 

 ments; Tirol, Dauphiny, Pyrenees. 



Tribe PEUCEDANE^E. Fruit much compressed dor- 

 sally, lateral ridges broadly winged; style short, stout. 

 Genera 45-52. 



45. PEUCEDANUM, L. 



Involucre various ; flowers white, yellow, or pink ; 

 calyx-teeth small; petals with an inflexed often bifid 

 point ; vittae 1-3 in each furrow. 



A. General involucre o, or of not more than 3 bracts : 

 P. verticillare, Koch (Tommasinia verticillaris, Bert.); 

 stem 3-5 ft., much branched, upper branches in whorls, 

 flowers greenish-yellow, fruit nearly globose ; mountain 

 slopes, local. P. Ostruthium?}Loc\i (Imperatoria Ostru- 

 thium, L.) ; calyx-teeth o, flowers white, leaves thick, 

 leaflets ovate, dentate; bushy places, frequent. P. 

 angustifolium, Rchb. ; leaves thin, bi-ternate, leaflets con- 

 nate, acuminate, incised, pinnatifid at the base ; Ticino, 

 rare. P. caruifolium, Vill. (Chabrcei, Rchb.); leaves 

 simply pinnate, segments pinnatifid with linear lobes, 

 flowers greenish or yellowish ; Jura, Pyrenees. P. offici- 

 nale, L. ; flowers yellow, stem 1^-3 ft., glabrous, leaf- 

 segments linear-acuminate ; marshes. 



B. General involucre of 4 or more bracts; edges of 

 carpels winged : P. austriacum, Koch ; stem furrowed, 

 leaflets ter-pinnate, segments linear-lanceolate, flowers 



