Helianthemum.-] CISTINE^. 33 



annual ; stem angled, branched ; leaves oblong, deeply crenate ; 

 stipules lyrate, pinnatifid. Br. Fl. 1. p. 107. E. Fl v. 1. p. 

 305. E. Bot. t. 1287. 



p. petals shorter than the calyx. V. arvensis, Murr Forst. 

 in E. Bot. Suppl. t. 2712. 



Banks and cultivated fields, frequent. Fl. the whole summer. 0. 

 1L. or $ . Extremely variable, especially in the size and colour of its 

 flowers. Stigma capitate, obliquely perforated. 



7. V. lutea, Huds. Yellow Mountain Violet or yellow Pansy. 

 Perennial ; stem much branched at the base ; leaves ovato-ob- 

 long, crenate ; stipules lyrate, subpalmato-pinnatifid. Br. Fl. 1. 

 p. 107. E. Fl. v. 1 . p. 306. E. Bot. *. 721 . 



Mountains near Castletown, County of Cork ; Mr. J. Drummond. 

 Fl. May Sept. %. Flowers generally of a pale yellow or sulphur 

 colour, much larger than any of the wild varieties of V. tricolor. 

 Upper petals often purple. 



8. V. Curtisii, Forst. Yellow Sea Pansy. Stem decumbent, 

 angular, rough ; leaves oblong, crenate, naked ; leaf-stalks 

 hairy ; stipules palmate, lobes acuminated, ciliated ; bracteas 

 minute ; spur the length of the calyx. Forst. in E. Bot. Suppl. 

 t. 2963. 



Abundant on the sand hills at Portmarnock, and other places on the 

 coast, where it has frequently been mistaken for V. lutea, and is 

 probably the plant alluded to by Doctor Hooker as a small var. of that 

 species, found by Mr. Tozer at the Land's-end, Cornwall. Although I 

 have followed Mr. Forster in giving it the rank of a species, I think it is 

 nothing more than a variety of V. tricolor. Lower petals pale yellow, 

 upper ones deep yellow, sometimes purple ; both streaked with purple 

 at the base. Fl. May Sept. If. 



ORD. 8. CISTINE^E. Juss. Cistus Family. 



Sepals 5, generally unequal, the two outer smaller, the three 

 inner with a twisted aestivation. Petals 5, caducous, equal, 

 wrinkled in aestivation and twisted in a direction opposite to that 

 of the sepals. Stamens indefinite, erect, distinct : anthers ovate, 

 2-celled, inserted by their base. Style 1, filiform. Stigma sim- 

 ple, capsule 3 5-rarely 10-valved, 1 -celled, with the valves 

 bearing a single longitudinal placentae, or 3 5-celled, the dis- 

 sepiments from the centre of the valves, extending to the axis, 

 and bearing the numerous seeds. Albumen nearly including a 

 spiral or curved Embryo. Shrubs or herbs. Leaves simple, lower 

 ones generally opposite, the rest alternate. Stipules 2 and foliaceous, 

 or none. Flowers racemose, very fugacious, white, yellow, or 

 purple. 



1. HELIANTHEMUM. Tourn. Rock-rose. 

 Calyx of three equal sepals, or five, of which the two outer ones 



