8. ciSTACE^. 35 



t2. R. suffruticulosa (L.) ; sep. 6 linear-lanceolate, pet. 5 

 nearly equal 3-fid longer than the calyx, pad. shorter than the 

 cal., I. all pinnatifid, segments linear acute sometimes wavy. — 

 E. B. S. 2628. R. ii. 101.— St. 1^—2 feet high, rather shrubby 

 below. Fl. white. Fr. oblong, wrinkled. This plant is some- 

 times found with 6 sep. and pet. when it appears to be JJ. alba 

 (L.). — Waste sandy places near the sea, raje. B. or P. VII. YIII. 



3. R. Luteola (L.); sep. 4, pet. 4 or 5 very unequal longer 

 than the calyx, I. elongate-lanceolate undivided. — E. B. 320. R. 

 ii. 99. — St. 2 feet high. Pet. usually 4, upper one 3-, 4-, or 

 5-cleft, 2 lateral 3-cleft, segments linear, lower one (or 2) linear 

 entire. Fr. broad, depressed. — Waste places, particularly on 

 chalk or Umestone. A. VII. VIII. Weld. 



Order VIII. CISTACE^. 



Sep. 5, two outer smaller sometimes wanting, 3 inner with a 

 twisted ffistivation. Pet. 5, corrugated and twisted in aestivation 

 the contrary way to the sepals. Stam. many. Ovary 1, 1- or 

 many-celled. Style and stigma simple. Fruit capsular, with 3, 

 5 or 10 valves. Embryo spiral or curved, in the albumen. 



1. Hblianthemum. Cal. of 5 sepals, 2 outer smaller. Pet. 

 5, deciduous. Stam. many. Caps. 3-valved. 



1. Helianthemtjm Gaert. Rock-rose. 



1. H. guttatum (Mill.); erect herbaceous, 1. oblong-lanceolate 

 or linear, lower 1. opposite without stipules, upper 1. alternate, 

 racemes without bracts, stigma subsessile. — E. B. 544. — Upper 

 1. usually with small stipules. Fruitstalks patent. Pubescence 

 of long simple and short stellate hairs. Fl. yellow, usually with 

 a deep red spot at the base of each petal. — Very rare. Three- 

 Castle Head, Cork. Jersey. A. VI.— VIII. I. 



2. H. Breweri (Plauchon) ; erect herbaceous, I. obovate obtuse 

 rosulate without stip., upper 1. linear, racemes with bracts. — 

 Lond. Journ. of Bot. iii. 618. t. 21. — St. mostly simple or 

 branching from the base. Pet. narrow, yellow, not spotted. 

 Fruitstalks erect-patent. — Very rare. Holyhead Mountain and 

 near Amlwch, Anglesea. A. VI. — VIII. E. 



3. H. canum (Dun.) ; shrubby, without stipules, 1. opposite 

 ovate or oblong stalked flat hoary beneath, racemes terminal 

 bracteated, " style twisted at the base reflexed, at the apex in- 

 flexed." — Cistus marifolius Sm., E. B. 396. — St. decumbent. 

 L. hoary beneath, hairy above. Fl. yellow, small. "Anth. 

 emarginate at both ends. Style longer than the stigma." — On 

 limestone rocks, rare. P. V. — VII. E. I. 



