UMBELLIFERJE. 223 



dmm.^) Seed transversely subterete, flat or convex at face. — Annual 

 or perennial herbs, generally glabrous ; leaves pinnate or decompound, 

 3-nato -pinnate ; umbels terminal, lateral or oppositifolious, compound ; 

 involucral bracts oo {Oreosciadiuni), few, 1 or ; bracteoles of invo- 

 lucels 00 (Helosciadkim) , or (Leptocaulisy Euapiurn,^) {All warm 

 and temp, regions of the ivorld}) 



48. Apiastrum Nutt.'^ — Flowers ^ of Apiimi, subasepalous ; petals 

 ovate or suborbicular concave entire. Anthers sub-2-dymous ; with 

 submarginal clefts. Styles short; stylopods small. Fruit shortly 

 ovate or obcordate-2-dymous, much compressed contrary to septum, 

 at base very emarginate ; commissure narrow ; primary ridges very 

 Httle prominent subequal warty, curved below; vittae soHtary; 

 carpophore 2-partite. Face of seed slightly convex flat or more 

 rarely slightly concave. — Slender annuals ; leaves dissected ; segments 

 linear or filiform ; umbels compound oftener oppositifolious ; the 

 exterior sometimes longer stipitate; involucres and involucels 0.^ 

 {South icest. N. America J) 



49. Apinella Neck.^ — Flowers ^ (nearly of Apium) polygamo- 

 dioecious ; sepals dentiform or 0. Petals oftener entire. Stylopods 

 depressed conical ; margin undulate. Fruit (nearly of Apium) broadly 

 ovate or 2-dymous, constricted at commissure ; mericarps sub- 

 5-gonal ; primary ridges rather thick smooth {Eutrinia) or plicately 

 lobed or rugose (Rumia^^). Secondary ridges sometimes slightly 

 conspicuous (Paimia). Yittae in furrows solitary or 0. Carpophore 

 2-partite. Seed subterete or angular and sulcate. — Glabrous peren- 

 nial herbs ; leaves decompound ; umbels compound ; involucral bracts 



' Webd. Chlor. AncUna. ii. 203, t. 69.— B. H. ^ Ex Torr. et Gr. FL N.-Amer. i. 643.— 



Gen. 889, n. 51. — Niphogeton ScHLCHxr,, exs. Endl. Gen. n. 4549^ — B. H. Gen. 887, n. 48. 

 Lcchl. (ex B. H.). Fruit as in Euap'mm gene- ^ White, 



rally a little longer. ^ " Gen. differing a little from Apium sect. 



2 Qy. if Froriepia (C. Koch, Linncea, xvi. 362 ; JEuapmm by its 2-partite carpophore, from Oreo- 



— Boiss. Fl. Or. ii. 857), is a sect, of this gen. ; sciadium in habit, from both by its fruit at base 



the secondary ridges in its fruit are slightly being emarginate with two roundish lobes." 



prominent, and vitta? said to be ? (B. H. loc. cit.) 



^ Spec, about 15. Labill. N.-HoU. t. 103.— 7 Spec. 2. Tork. E.nortjs Rep. Bot. t. 28.— 



Vent. Mabnais. t. 81.— Clos, C. Gay Fl. Chil. Wai.p. Rep. ii. 428. 



iii. 118, 122 {Heloseiadium).— RooY.. Y. Handb. a Flem.n.326.— S/>ielmanntaCvBS.(notMBTt.). 



N. Zeal. FL 89.— Benth. FL AnstraL iii. 371 — —Trinvi Hoffm. Gen. Umb. 92.— Koch, Umb. 



Hakv. and Sond. Fl Cap. ii. 534.— Hiern, FL 127.— DC. Prodr. iv. 103.— Exdl. Gen. n. 4396. 



Trop. Afr. iii. 41.— MiQ. Ann. Mtis. Lugd.-BaL — B. H. Geu. 887, n. 48. 

 iii. 57.— Boiss. FL Or. ii. 856. — Reichb. r. Ic. ^ White or yellowish. 



FL Germ. t. 1846 (15), 1854, 1855.-H. B. K. i" Hoffm. Umb. 171, t. tit. fig. 3, 4, 17, 21 



Nov. Gen. et Sp. PL JEqitin. t. 421.— Gren. et (not Link).— Koch, Vmb. 129, adn,— DC Mem. 



GoDR. FL de Fr. i. 735 {Hehsciadium), 738.— Oinb. 36 ; Prodr. iv. 98.— Endl. Gen. n. 4390. 

 Walp. Rep. ii. 391 ; Ann. v. 65. 



