32 



Acaulescenl and oespitose: Eooky MLs Aletes, 48 



Oil-tubes more than one in the intervals. 

 Stylopodium conical. 

 Fruit oblong or ovale, with prominent e(iuul ribs. . . .Luuisticum. 21 

 Fruit ovate to linear-oblong, with equal filiform ribs. . . .Eulophus, 37 

 Fruit round, with globose car[)els, and very slender 



inconspicuous ribs Bekula, a5 



Stylopodium depressed. 



Seed-face decido<lly concavcr fiuit with all the ribe 

 filiform. 



Carpels flattened dorsally Musenium, 'Mi 



Carpels terete. 



Seed-face in\ oiute, enclosing central cavity VEii.^^A, 42 



Seed-face with a deep and narrow sulcus Museniopsis, 43 



Seed-face plane oi- but slightly concave. 



Fruit with all the ribs conspicuously winged PHEiiiiOPTEKUS, lit 



Fruit with prominent ecjual corky ribs. 



Fruit not llaltened either v,'ay CcEijOpiiErKUM, 24 



Fruit flattened laterally Siitm. 45 



Fruit with thick corky lateral ribs and filiform 



dorsals and intermediates Orogenia, 25 



FrvJt with all the ribs filiform. 



Very small, acaulescent, high alpine plant Podisteka, 3.S 



Caulescent, low ground plants PiMPiNELiiA, 34 



* * * Fruit strongly flattened laterally. 



Marsh or acjuatic plants, with simple leaves Hyi>KO(()T\i,K, .")S 



Eich ground vernal plants, with temately compound 



leaveb Eiuhenia, .">!} 



SYNOPSIS OF SPECIES. 



1. DAUCUS Linn. Gen. n. 888.— Bristly annuals or bien- 

 nials, witii pinnately dccon';ponnd leaves, foliaceous and cleft in- 

 volucral bi-acts, involuccls of entire or toothed bractlets, and white 

 flowers in coiica\ e umlels (connivent in fruit). 



1. D. pusillus Michx. Fl. i. 1(U. Stems retrorsely papillate- 

 hispid, from an inch to two feet high: leaves finely dissected into 

 narrowly linear segments: umbels unequally few to many-rayed; 

 rays J^ to li4 inches long; pedicels very unequal, from 8 lines 

 long to almost wanting: fruit li^ to 2i^ lines long. (Fig. 1.) 



