PENTANDRIA. DlGYMA. 185 



the lamina, and nearly the leng-th of the peduncle. Jnvo- 

 lucrum none liadii 4 to 6, very sliort; (so as to render 

 the umbell in appearance simple or con^lomeratcc) In- 

 volucell 5 to 7 parted, on one side, segments lanceolate. 

 Central flowers of the umbcl'.et pedunculate, small and 

 masculine; fertile flowers white, equul, subsessile, scarce- 

 ly longer than tlie involucell. Petals roundish oval, apex 

 inflected. Callx minute, 5-toolhed. Styles nUfornij per- 

 sistent. Fruit large, subeiliptic and compressed, with 7 

 or 8 conspicuously alated ridges. Perfect seed sublinear, 

 with 4 secondary wings, huptrfect witli 3. Al?e \mdu- 

 lated, intervals flat, commissure naked, (tlie margin not 

 extending to the centre, so us to cover tiie seed) marked 

 with 3 nearly central longitudinal lirics- Axis insepara- 

 ble from the friiiti — JIab. On tl,e open plains of the Mis- 

 souri, comir.encirig 4U miles below the confluence of 

 White river. Flowering lime May and June. 



A genus of 6 or 7 species, indigenous to the south of 

 Euroj)e and Northern Africa. 



'2C9. LIGU5TICUM. L, (Lovagc.) 



Fr/iif obloijg, corticate Heed "with 5 acute 

 ridi^os and 4 grooves.''! JrssiEU. Sprengel.- 

 * Involucrum universal and partial, many-leav- 

 ed." Sp. 



Leaves decompounded, f(ir the most part ternately di- 

 vided. Calix often 5-tootiied? 



Species. 1. L. scoticum. In Canada. 

 Almost exclusively an European genus. 



270. ANGELICA. Z. 



'<Fru?Y ell iptir, compressed, somewhat solid, 

 and corticate, ridges 5, dorsal acrite, intervals 

 grooved, mai-gin alated. Inrohicrum universal 

 none." Spuengel. 



t Many authors describe the seed, as having 5 grooves, which 

 is impossible in the nature of umbelliferous seeds, as ihey are 

 all referribie to a structure of 5 primary ridges, viz. 1 dorsal, 

 2 lateral, and 2 mal'giria!; when inlaid witli secondary v'A^c^s the 

 grooves are either obliterated, or produced comparatively by 

 the depression or obliteration of the primary elevations; as 

 these never exceed 4, so the intervening grooves, must ever be 



5 or 4, or if the grooves were double, their number would be 



6 or 8, but never o. 



»2 



