379 
reflexed to sub-patent in fruit. Arbrook Common, Surrey, Aug. 
14, 1926. — D. G. Catcheside. R. opacus Focke, or else a hybrid 
of it.— H. J. Riddelsdell. 
R. thyrsoideus Wimm. Arbrook Common, Surrey, Aug. 14, 
1926. — D. G. Catcheside. R. rusticcmus Merc. — H. J. Riddelsdell. 
R. rusticanus Merc. [Ref. 24]. Stem not rooting ; sepals con- 
tinuously reflexed ; petals pink ; stamens slightly longer than 
the brownish styles. Banstead Downs, Surrey, Aug. 10, 1924. — 
E. C. Wallace. Correct. — H. J. Riddelsdell. 
R. cenomanensis Sudre, var. Bloxamianus Colem. ex Purchas. 
Stem somewhat arcuate, prostrate, not rooting; petals rather 
narrow, pink ; filaments white, somewhat green styles ; sepals 
erect at first, spreading in flower, becoming reflexed before fall of 
petals, spreading in fruit. Hedge by a wood near Walton-on-the- 
Hill, Surrey, July 10, 1926. — D. G. Catcheside. Certainly 
R. rudis Whe. & Nees. — H. J. Riddelsdell. 
R. plinthostylus Genev. Colan, near Newquay, W. Cornwall, 
July 13, 1907. — C. C. Yigurs. Comm. F. Rilstone. Yes. — 
FI. J. Riddelsdell. 
R, corylifolius Sm. 1 [Ref. 11], Banstead Heath, Surrey, v.c. 
17, Aug. 29, 1926. Stem not rooting ; tip of sepals dark brown, 
glabrous ; petals white ; white stamens ± longer than yellowish 
styles.— E. C. Wallace. A corylifolian hybrid, I expect. — H. J. 
Riddelsdell. 
R. [Ref. 13], Stem not rooting; petals pale pink; 
greenish styles < pinkish stamens ; slender spreading bush. 
Arbrook Common, Surrey, v.c. 17, Aug. 14, 1926. — E. C. 
Wallace. R. opacus Focke. Stem pieces lacking on some sheets 
— H. J. Riddelsdell. 
R ■ [Ref. 2]. Stem not rooting; sepals reflexed 
during flowering; stamens longer than styles; filaments white, 
anthers darker ; petals pinkish-white fading to white. Headley 
Heath, Surrey, v.c. 17, Aug. 8, 1926.— E. C. Wallace. This is 
the difficult plant put by Focke and Rogers to R. argenteus Whe. 
and Nees, f. glandulosa. I do not think it can go there ; it is 
really near Gelertii Frider. This year I found it in great quantity 
on the top of the South Downs, both near Worthing and near 
Brighton, up to 800 feet. The supply of stem pieces is inade- 
quate. — H. J. Riddelsdell. 
R • [Bef- 12]. Petals rich pinkish-red; styles green, 
shorter than yellowish-white stamens ; stem not rooting. Arbrook 
