194 UMBELLIFER/ii. 



of the latter, which is fragrant and swfeet when first tasted, but 

 leaves glowing heat in the mouth, is valued by the Lapps both 

 as food and as medicine. Several species produce underground 

 tubers, which, under the name oi pig-nuis or earth-nuts, are eaten 

 by children and pigs. 



Trilie I. IlYdroiotyltcv. — Uiiit'el sim/te : fruit nnidi compressed 

 laterallv : commissure )iarroiv : lio carpopluii-e or vittce 



1. HvDROCuTYLE. — Creeping ; /faz'«"simple, peltate. 



Trilie 2. Saniciilae. — Umbel simple, capitate or irregulaipy com- 

 pound : fruit slightly dorsally compressed ; commissure broad : no 

 cai'pupho?r. 



2. Ervngium. — Leaves spinous ; umbels in dense heads ; /;■//// 

 scaly, without ridges or vittas. 



*3. AsTR.vNTiA. — Leaves palmatifid ; bracts large, often 

 coloured ; fruit without vitta;. 



4. Sani'cula. — Leaves palmatifid ; umbels sub-globose, irregularly 

 compound ; fruit covered with hooked bristles, without ridges ; 

 vittce numerous. 



Tribe 3. Ammi>u'cr. — Umbels compoujul : fruit laterallv com- 

 pressed: couimissure narrow ; primary ridges most Conspicuous : vittiC 

 usually obvious. 



* Fruit short, not winged : seed grooved in frotit 



5. Danaa. — Fruit globose, bladder-like, with slender thread-like 

 ridges and solitary vittce. 



6. CoNfuM. — l-'ruit ovoid, each carpel with 5 prominent wavy 

 ridges : carpophore undivided. 



7. Smyrnium. — Flowers yellow ; carpels kidney-shaped, each 

 with three prominent sharp ridges (dorsal and intermediate) ; 

 vittic numerous ; carpophore forked. 



** Fruit short, not winged : seed flat in front 



8. BuPLEi'iRUM. — Erect; leaves undivided; plowers yellow; 

 petals with an infle.\ed point ; caipophoie iorVttil. 



9. TRiNlA.--Z(Vj?'('.f pinnate ; floicers white, ditecious ; carpo- 

 phore forked ; vittte 5, large, in the bases of the thick primary ridges. 



10. Apiu.m. — Zft;z«.s- pinnate or ternate ; /vv^r/.f absent ; bracteoles 

 many or absent ; flowers white, ]")erfe(;t ; sepals inconspicuous ; 

 petals entire ; ridges slender, prominent ; vittie solitary. 



11. PETROSELfNUM. — Bracts few; bracteoles many; sepals 

 minute ; petals roundish, entire, with ^i narrow incurved point ; 

 carpophore forked ; rldi;es slender. 



