Qj3 ENGLISH BOTANY. 



shire ; formerly also by Watling Street, near Brook Hall, where it 

 is now extinct. 



England. Perennial. Summer and Autumn. 

 Rootstock elongate thickened. Stem erect or ascending, much 

 branched, 1 to 2 feet high. Radical leaves on stalks 2 to 8 inches 

 lone the lamina 3 to 8 inches across, deltoid and not decurrent in 

 he^pecimens I have from Plymouth but rhomboxdal and decur- 

 rent, sometimes nearly to the base of the petiole, m those from 

 Weston-super-Mare, pinnatifid with i to 6 pan- of segments each 

 pair with the decurrent portion narrowing downwards until it dis- 

 appears where the next pair of pinnae are situated ; lowest segments 

 much the largest and most deeply divided; stem-leaves smaller 

 than the radical ones, sessile, with large auricles embracing the 

 Urn, which terminates in a single stalked flower-head beneath 

 which it is trichotomously branched as in E. maritimum but the 

 branches are more repeatedly dichotomous than in that ^plant, a*d 

 the stem itself is much more branched. Flower-heads \ to f inch 

 across, at first globular, afterwards shortly-ovoid. Bracts of the 

 separate flowers usually entire. Calyx-segments lanceolate, abrnptiy 

 acuminate, with a long excurrent spinous midrib. Cremocarp ft inch 

 W roughened, thickly clothed with white scanous lanceolate 

 scales. Plant pale glaucous-green, glabrous. 

 Field JEryngo. 



French, Panicaut des Champs. German, Feld Miinnertreu. 



Tribe III.— AMMINE^J. 



Cremocarp laterally compressed, often sub - didymous ; colu- 

 mella distinct, generally free; mericarps with 5 primary ridges, 

 ridges equal, filiform, rarely winged, the lateral ones usually mar- 

 ginal, all equal. Seed flat on the inner fact, or nearly so. 1 lowers 

 in regular compound umbels. 



GENUS V.— 01 CUT A. Lmn. 

 Calyx-limb of 5 deltoid-ovate teeth. Petals obovatc, obcordate, 

 with a short indexed point coming from the notch. Cremocarp 

 smooth, sub-globular, laterally compressed, constricted at the line 

 of junction of the mericarps, so as to be didymous ; columella 

 free bipartite; mericarps with the ridges broad and flat, nearly 

 equal, the lateral ones remote from the margin; interstices each 

 with a single vitta. Involucre none or few-leaved; involuccls 



many-leaved. , 



Glabrous perennial aquatic herbs, with fistulose stems and 



