(rarely 1 in a dorsal interval or 4 in a lateral), 4 to 8 on the com- 

 missural side. Seed with bacU almost lonnd and slij^htlv concave 

 face. 



10. Tiedemannia. Caly\-teclh e\i(lent. i-^uit ovate to 

 ohovate, fi^labroiis. Carpel with dorsal and intermediate ribs 

 Hliform; lateial wings closelv contiguous to those of the other 

 carpel and nerved dorsally at the inner margin (giving ti.e ap- 

 pearance of 5 filiform rihs on the hack of each carpel); strengthen- 

 ing cells beneath the dorsal ribs and nerves of the lateral wings. 

 Stylopodium thick short conical. Oil-tubes 2 to iS on the com- 

 missural side. Seed-face plane. 



11. Heracleum. Calyx-teeth small or obsolete. Fruit 

 broadlv ohovate, very much flattened, somewhat pidiescent. Car- 

 l^el with dorsal and intermediate rii)s jlliform; the broad lateral 

 wings contiguous to those of the other carpel, strongly nerved to- 

 wards the outer margin; strengthening cells continuous about seed- 

 cavity, and under the nerves. Stylopodium thick conical. Oil- 

 tubes about half as long as the carpel, 2 to 4 on the commissural 

 side. Seed verv much flattened dorsally. 



* * * Caulescent branching plants, with solitary or numerous* oil- 

 tubes, depressed stylopodium (or none), filiform dorsal and intermediate 

 ribs, and yellow flowers. 



12. Pastinaca. Calyx-teeth obsolete. Fruit oval, very 

 much flattened, glabrous. Carpel with broad lateral wings con- 

 tiguous to those of the other carpel, and strongly nerved towards 

 the outer margin; strengthening cells continuous about the seed- 

 cavity and under the nerves. Stylopodium depressed lout promi- 

 nent. Oil-tubes small, solitary in the intervals, 2 to 4 on the com- 

 missural side. Seed \erv much flattened dorsallv. 



13. Polytaenia. Calyx-teeth conspicuous. Fiuit ohovate 

 to oval, much flattened, glabrous. Carpel with dorsal and inter- 

 mediate ribs small or oliscure in the depressed often corky bajk ; 

 laterals forming broad thick c()rk\- wings closely contiguous to 

 those of the other c; rpcl ar.d forming the thick margin of the 

 fruit. Stylopodium wanting. Oil-tubes 12 to 18 about the seed 

 (4 to 6 on the commissural side) and many scattered through the 



