198 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- 

 Ilall 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, f inch long, cream-white, 

 more or less suffused with light-purple or faintly streaked with 

 purple, yellowish before expansion ; tbe upper lip, which is erect, 

 has a fold in the middle, as pointed out by the late Dr. Bromfield, 

 which gives it the appearance of being notched, although it is 

 really entire. 



This is the palest-coloured of all the British Orobancbes, the 

 whole plant, including the flowers, appearing white at a little 

 distance. 



Picris Broom-rape. 



French, Orobanche de la Picride. German, Bitterkraut Sommerumrz. 



SPECIES IX.— O ROBANCHE HEDEBJE. Dvby. 



Plate MXV. 



Itekh. Ic. Fl. Germ, et Helv. Vol. XX. Tab. MDCCCIII. 



BUM, Fl. Gall, et Germ. Exsicc. No. 2334. 



O. barbata, Bab. in E. B. S. No. 2859 (uou Pow). 



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-cleft ; 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, 



