TJMBELLIFERiE. 107 



the stem erect and more wiry, the branches much shorter, flexuous 

 and spreading, and the ovary of the flowers globose, instead of 

 oblong. 



Sedge Stonewort. 



French, Sison Arnome. German, Scheiberich. 



The fruits of this plant are aromatic and pungent when dry and ripe, but in an 

 early stage they, like the whole herb, have a disagreeable and nauseous smell! 



GENUS X-T R I N I A. Uoffm. 



Flowers dioecious. Calyx-limb obsolete. Petals of the male 

 flowers strapshaped, acute, with the point incurved ; of the female 

 flowers oval, truncate, apiculate, with a short inflexed point. 

 Cremocarp oval-ovoid, laterally compressed ; columella free, bipar- 

 tite ; mericarps with 5 equal filiform ridges, the lateral ones mar- 

 ginal, each ridge with a single vitta underneath it; interstices 

 without vitta?, or sometimes with a single one. Involucre and 

 involucel none, or of few leaves. 



Biennial much-branched herbs with ternately bipinnate leaves, 

 with linear glaucous segments, and numerous umbels of white 

 flowers. Eeniarkable among the Unibelliferse for being dioecious, 

 and for the vittae being under the ridges of the fruit, not in the 

 spaces between them. 



This genus of plants was named after Dr. Trinius, a celebrated Russian botanist, 

 who has written on Graminece. 



SPECIES I.-TRINI A VULGARIS. D.C. 



Plate DLXXIX. 



Reich. Ic. FL Germ, et Helv. Vol. XXI. Tab. 1870. 

 BUM, Fl. Gall, et Germ. Exsicc. No. 2680 (bis). 

 T. glauca and pumila, Reich. Fl. Germ. Excurs. p. 473. 

 Pimpinella dioica, Linn. Sm. Eng. Bot. No. 1209. 



Stem corymbosely branched. Leaves ternately bipinnate ; seg- 

 ments linear. Flowers dioecious. Involucre none, or of a single 

 leaf. Cremocarp with broad, blunt, elevated ridges. Plant glabrous 

 and glaucous. 



On rocks, particularly of limestone. Very local. Berry Head, 

 Devon ; Uphill and TYhorle bill, Somerset ; St. Vincent's Bocks! 

 Gloucestershire, near Bristol ; near Athboy, county Meatb, Ireland. 

 England, Ireland. Biennial. Early Summer. 



