SCROPHULARIACE^. 123 



It also differs in the shape of the barren stamen, which is divided 

 into 2 divaricate lobes with a slight notch between them. 



S. Neesii, of AVirtgen, differs, in having the lobes of the stami- 

 node more erect, not divaricate; but it is doubtful if it be really- 

 distinct. I have seen specimens of S. Ehrharti only from the Scotch 

 locality, but Botanists will do well to examine the abortive stamen 

 in those from other places, to see if the staminode has the lobes 

 always divaricate. 



Mhrliarfs Water JBetony. 



SPECIES III— SCROPHUL ARIA NODOSA. Linn. 



Plate DCCCCXLIX. 



Rdch. Ic. Fl. Germ, et Helv. Vol. XX. Tab. MDCLXXIX. 

 Billot, Fl. Gall, et Germ. Exsicc. No. 1718. 



Rootstock tuberous, nodose. Stem acutely quadrangular, the 

 angles without wings. Leaves ovate or triangular-ovate, with 

 scarcely winged petioles, acute, serrate or crenate-serrate, abrupt or 

 sometimes subcordate at the base, without lateral lobes from the 

 petiole. Elowers in lax axillary cymes arranged in an elongate 

 lax panicle. Lowest bracts resembling the leaves; upper ones 

 linear. Pedicels rather slender, with gland-tipped hairs only 

 at the base, two to five times as long as the calyx at the time of 

 flowering. Divisions of the calyx oval-orbicular, with narrow 

 scarious margins. Corolla three times as long as the calyx, not 

 contracted at the throat. Abortive stamen transversely deltoid- 

 reniform, very slightly notched. Capsule globose-conical, gradually 

 acuminated. Plant glabrous. 



In damp shady places, woods, by the sides of ditches, &c. Very 

 common, and generally distributed ; but not reaching to Orkney 

 and Shetland. 



England, Scotland, Ireland. Perennial. Summer 

 and Autumn. 



Rootstock much thickened, greenish-white, with fleshy knobs. 

 Stem 18 inches to 3 feet high, not winged as in the two preceding 

 species, but with a raised line at the angles. Petioles slightly 

 winged at the very top, but not at all so for the lower two-thirds. 

 Leaves 2 to 7 inches long, tapering from a little above the base to 

 the apex, coarsely and unequally or doubly serrate, with the teeth 

 largest near the base, the veins deeply impressed on the upper 

 surface. Elowers f inch long, green, suffused with dull-brown 

 towards the apex. The cymes are less divaricate than those of 

 S. Ehrharti, and the peduncles much more erect, and only one or 



