BROOM-RAPE TRIBE 277 



Broom-rape had attached itself, believing them to be unwholesome. A variety 

 of this, and called by some writers the Bluish Broom-rape (0. amethpstea), is 

 parasitical upon the sea-side carrot along the south coast from Cornwall to 

 Kent. It apparently differs only by having the corolla curved, and the lobes 

 of the purple stigma growing in a straggling maimer. 



6. Picris Broom-rape (0. picridis). — Sepals 1 — 3-nerved, entire, or 

 toothed in front, below gradually narrowed into one or two sharp points ; 

 corolla swelled at the base, slightly curved at each end, nearly straight at 

 the back ; lips toothed, wavy, upper without notches, lower of three roundish 

 lobes, the middle one the largest ; stamens hairy in their lower half within ; 

 style glandular below, in front, and throughout on its upper half ; stigma 

 lobed, purple ; anthers purple or yellowish ; annual. This rare species is 

 found in the Isle of Wight, in Cambridgeshire, Kent and Surrey, flowering 

 in June and July on the yellow Picris. Many authors doubt if it is really 

 distinct as a species, and regard it as a sub-species or a variety of 0. minor. 



7. Ivy Broom-rape (0. hkierce). — Sepals l-nervecl, broad below, sud- 

 denly contracting into 1 — 2 awl-shaped points, nearly as long or longer than 

 the tube of the corolla ; corolla curved ; lips toothed, wavy, upper lip 2-lobed, 

 its sides straight, lower of three roundish nearly equal lobes ; stamens 

 smooth, slightly hairy below ; style smooth, or with a few hairs on the upper 

 part ; stigma yellow, scarcely lobed ; perennial. This form, which has a 

 purplish stem, is parasitical upon the ivy in the south and west of England 

 and Wales, and at Muckross Abbey, and some other Irish localities. It is 

 most abundant on the ivy in the neighbourhood of Dublin, and has been 

 planted on that evergreen in the Botanic Gardens of Clasnevin with success. 

 Many botanists believe it to be but a form of 0. minor, from which it differs 

 chiefly by its yellow stigma, which has its lobes attached together, instead of ■ 

 being nearly distinct. 



* * Bracts iliree under each flower ; stems in some species branched. 



8. Purple Broom-rape (0. ccerillea). — Stem simple ; calyx with five 

 short acute teeth ; corolla tubular, curved in front, middle of the tube com- 

 pressed, upper lip of the corolla cloven, lobes of the lips acute, with rolled 

 margins ; anthers smooth ; style downy ; stigma scarcely 2-lobed, white. 

 This is a rare species, growing in grassy pastures, especially near the sea. It 

 has been found in Hertfordshire, Cornwall, and the Isle of Wight, but is less 

 rare in Norfolk than elsewhere. It flowers from June to August ; the stem, 

 scales, bracts, calyx, and corolla are all slightly downy, and the flowers 

 incline more to purplish-blue than in any other species. 



9. Sand Broom-rape (0. arendria). — Stem simple; calyx with five 

 short awl-shaped teeth ; corolla tubular, nearly straight, the middle of the 

 tube compressed at the back, throat slightly inflated, upper lip cloven, lobes 

 of the lips blunt, rolled back at the margin, lower lip hairy within, line down 

 the anthers hairy ; perennial. This rare species, or probably sub-species of 

 0. ccertdect, is found at Alderney, in the Channel Islands, where it is parasitical 

 on the common yarrow. 



10. Branched Broom-rape (0. ramdsa). — Stem branched ; calyx with 

 four triangular egg-shaped pointed teeth ; upper lip of corolla deeply cloven ; 



