468 CXIII. UMBELLIFERJ3. 



The following is the Candollean division of the order : 



TRIBE I. UMBELLIFER.E ORTHOSPERM^E. Seed flat or convex on its commissural face. 



TRIBE II. UMBELLIFER.E CAMPYLOSPERM.S. Seed channelled, furrowed, or concave on its 

 commissural face, either from the incurved margins, or from the inflexion of the two ends. 



[The following conspectus of the tribes of Umbelliferce is that elaborated for the 

 ' Genera Plantarum,' and is a sketch only ; the classification of the genera of this 

 order being a most difficult and complicated task, and there being many exceptions 

 to the characters given : 



Series I. HETEROSCIADIE.E. Umbels simple, or regularly (rarely irregularly) compound. 

 Vitto) 0. 



TKIBE I. HYDROCOTYLE.S. Fruit laterally compressed or constricted at the narrow com- 

 missure ; carpels dorsally acute or obtuse. Hydrocotyle, Trachymena, Xanthosia, Azarella, &c. 



TRIBE II. MULINE*. Fruit exceedingly narrow at the commissure, 4-angled, or of 2 discoid 

 carpels placed face to face, which are dorsally flat or concave. Bowlesia, Asteriscum, Mulinum, 

 Hennas, &c. 



TRIBE III. SANICULEJ:. Fruit sub-terete, commissure broad, dorsally compressed. *Eryi^ 

 gium, Arctnpus, *Astrantia, Sanicula, Actinotns, Ac. 



Series II. HAPLOZYCJIE.*. Umbels compound. Primary ridges only of the fruit con- 

 spicuous ; vittie rarely absent in the furrows. 



TRIBE IV. ECHIHBPHOBE* Flowers ? solitary in the umbels, sessile ; fruit iuvolucratc 

 by the hardened pedicels of the $ flowers. One carpel perfect, sub-terete, the other arrested, 

 slender or rudimentary. Echinophora, Pycnocycla. 



TRIBE V. AMMINEJ;. Fruit laterally compressed, or constricted on both sides towards 

 the commissure, or grooved. 



Sub-tribe 1. Smyrnwce. Fruit broadly ovate or didymous. Seed hollowed or furrowed 

 in front. Physospermum, Conium, Trachydium, *Arracacha, Smyrnium, &c. 



Sub-tribe 2. Euamminece. Seed convex or flat in front. *Bupleurum, Lichtensteinia, 

 Trinia, *Apium, Cicuta, Ammi, Carum, *Sium, Sison, jEgopodium, *PimplnellcL. 



Sub- tribe 3. Scandiclnece. Fruit ovate, oblong, or linear. Seed grooved in front. 

 Cunopodiiiiti, *Myrrhis, Orcotnyrrhis, Chcerophyllum, Scandix, * Anthriscus, &c. 



TRIBE VI. SESELINEJ;. Fruit sub-terete or dorsally compressed, commissure broad ; 

 lateral ridges distinct, thickened or slender, but not dilated. 



Sub-tribe 1. Eitseselinece. Fruit sub-terete or rarely dorsally sub-compressed; primary 

 ridges sub-equal, not winged. Seseli, *Foeniculum. 



Sub-tribe 2. Thecocarpeoe. Fruit hard, terete, equally 5-angted or 5-winged ; carpels 

 connate ; vittw obscure or scattered. Thecocarpiis, &c. 



Sub-tribe 3. Cachrydece. Fruit sub-terete or dorsally compressed ; ridges obtuse, acute 

 or winged. Vittse indefinite, adhering to the seed, and separating from the corky exocarp. 

 Cachrys, Prangos, Crithimim, &c. 



Sub-tribe 4. (Enantlieve. Fruit sub-terete or dorsally compressed, ridges wingless, the 



