19 S ENGLISH BOTANY. 
towards the base, their upper half and the style sub-glabrous. 
Stigma of 2 divaricate lobes, purple. 
Parasitical on the roots of Picris hieracioides. Local. Rose- 
Hall Green, Freshwater Cliffs, Isle of Wight ; very abundant on 
the undercliff between St. Margaret's Bay and Kingsdown, South 
Kent ; about Comberton and Caxton, Cambridgeshire ; Tenby, 
Pembrokeshire. Probably frequently passed over as 0. minor. 
England. Perennial. Summer. 
Stem 6 inches to 2 feet high, white or tinged with pale-purple, 
yellowish. Flowers in a dense spike, J inch long, cream-white, 
more or less suffused with light-purple or faintly streaked with 
purple, yellowish before expansion ; the upper lip, which is erect, 
has a fold in the middle, as pointed out by the late Dr. Brornfield, 
which gives it the appearance of being notched, although it is 
really entire. 
This is the palest-coloured of all the British Orobanches, the 
whole plant, including the flowers, appearing white at a little 
distance. 
Picris Broom-rape. 
French, Orobanche de la Picride. German, Bitterkraut Sommerivurz. 
SPECIES IX— O ROBANCHE HEDER51. Dubxj. 
Plate MXV. 
Reich. Ic. Fl. Germ, et Helv. Vol. XX. Tab. MDCCCIII. 
Billot, Fl. Gall, et Germ. Exsicc. No. 2334. 
O. barbata, Bab. in E. B. S. No. 2859 (non Boir). 
Flowers spreading. Bracts as long or longer than the flowers. 
Sepals about as long as the tube of the corolla, entire or more 
rarely 2-clcft ; the upper segment with 1 conspicuous nerve, 
generally with an indistinct one on each side. Corolla pubescent 
with gland-tipped hairs; tube rather narrowly cylindrical, slightly 
curved, with the curvature greatest towards the base ; upper lip 
notched, with the margins slightly spreading ; lower lip 3-lobed, 
with the middle lobe larger than the others ; all crimped and 
sharply denticulate. Stamens inserted a little below the middle 
of the corolla-tube ; filaments very slightly hairy on the inner side 
towards the base ; their upper half and the style sub-glabrous. 
Stigma of 2 contiguous lobes, yellow. 
Parasitical upon ivy. Local, but occurring in most of the 
South and Western counties, from the Isle of Wight to Cornwall, 
