Pi, ex. cat 4.5. UMBELLiFER^. 497 



Invol. ; akenium ovate, 5-ribbed ; 

 petals involute Fceniculum. 307. 



Invol. ; akenium roundish, 3-ribbed ; 

 petals roundish ; lacinule blunt Apium. 306. 



Involucella many-leaved ; petals ovate ; 

 lacinule pointed; aken. ovate, 5-ribbed 



Petroselinum. 305. 



Involucella many-leaved ; pet. incurved ; 

 akenium ovate, compressed, margined ; 

 calyx 5-lobed Peucedanum. 302. 



Involucella many-leaved ; pet. incurved ; 

 aken, ovate, compressed ; calyx Silaus. 304. 



b. Fruit rilledf inodorouSf insipid ; vittceO. 



Involucellum 5-leaved ; akenium ovate, 

 oblong, 5-ribbed ; ribs 2-keeied Bupleurum. 309. 



c. Fruit rillesSi compressed ; vittce epicarpic^ dorsal and 

 I commissural, 



Involucrum and involucella 0; pet. involute; 

 dorsal vittce 4>, equal, acute , Pastinaca. 303. 



d. Fridt rihlessj venulose, inodorous, insipid; vittce 0. 



Involucrum and involucella 5-leaved ; 

 akenium ovate ; calyx toothed Agostana. 310. 



C. Flowers capitate, sessile, white ; akenium chaffy ; 

 calyx 5-toothed. 



Involucrum 3 to 5-leaved; involucella l-leaf, 

 topshape; ake?i. immersed in the involucella ; 

 Jlowers unisexual Echinophora. 282. 



Flowers intermixed with chaffs; 

 aken. ovate, hispid, chaffy Eryngium. 311. 



I. 266. DAUCUS. Dioscorides. Carrot. 



Involucrum and involucella many-leaved ; leaflets pinna- 

 tifid ; calyx 5-toothed, small ; petals nicked, unequally 

 2-lobed ; lacinule oblique, flexuous, keeled ; fruit ovate ; 

 akenium ovate ; latuscule 5-ribbed ; ribs bristly, bristles in 

 I row; vallecules 4, prickly; prickles in a single row, con- 

 nected at bottom by a membrane containing vittse ; sperma- 

 podium simple, bristlelike. — Umhells many-rayed, flat when 

 flowering. 



VOL. II. 2 k. 



