I30 THE FLORA OF THE ALPS 



D. General involucre present ; bracts of partial in- 

 volucre free ; leaves with several nerves : — B. falcatum, 

 L. ; flowers very small, bracts of partial involucre narrow, 

 awned, leaves all linear-lanceolate, often sickle-shaped ; 

 hill-sides; Western Switzerland, Styria, Pyrenees. B. 

 petrcsuiUy L. {graminifolium^ Vahl.); umbel solitary, 

 nodding, stem simple, leafless or with one leaf, radical 

 leaves linear, curved ; very high ; Southern Tirol, Carin- 

 thia, Dauphiny. B. ranunculoideSy L. ; bracts of partial 

 involucre broad, elliptic, umbel few -flowered, radical 

 leaves ovate or cordate, upper very narrow, stem 4-18 

 in., branched ; dry alpine pastures. B. caricifolium, 

 Willd. ; petals ovate, ochre-yellow, radical leaves linear, 

 fruit ribbed ; Switzerland, local. B. canalense, Wulf. 

 {caricifolium^ Rchb.); petals very small, pale yellow, fruit 

 not ribbed ; Ticino, Carinthia, Pyrenees. B. gramineuniy 

 Vill. ; bracts of partial involucre linear-lanceolate, acumi- 

 nate, umbel nodding, lower leaves linear-lanceolate, stem 

 leafy; Dauphiny, Pyrenees. 



Several other species occur in the Pyrenean valleys. 



18. Carum, L. 



Bracts of general and partial involucre few or o ; calyx- 

 teeth minute or o ; petals with a long inflexed tip ; vittae 

 I in each furrow, elongated. Not alpine. 



C. Carui, L., Caraway ; general and partial involucre 

 o or of very few bracts, flowers white, outer larger and 

 irregular, leaves bi-pinnate,stem slender, branched, hollow; 

 waste places. C. Bulbocastanimi^ Koch [Buniurn Bulbo- 

 castanuiHy L.), Pig-Nut; general and partial involucre 

 of 5-7 linear bracts, flowers white, outer rather larger. 



