Flora of Devon and Cornwall, by I. W. N. Keys. 161 
suppose that Mr. Eavenshaw must by a lapsus calami have "written against 
it the Plymouth habitat for S. reflexum, — a supposition almost confirmed by 
the circumstance that he has omitted Plymouth from the list of places in 
which the last-mentioned species is found. 
Sempervivum Linn. Houseleek. 
[S. tectorum {L.) — E.B. 1320. — "Walls and roofs (planted)" 
{Bab. Man.) 1 do not think it is in all cases " planted," having 
seen it in both counties in out-of-the-way nooks, which, if not 
always inaccessible, could offer no temptation to any one to take 
the trouble to plant it there. — D- Occasionally met with throughout 
the county. I have seen it in the neighbourhood of Plymouth, 
but can name no particular place. Roofs of houses and old walls 
[about Totnes] : Ft. Tot. Roofs of cottages at Cockington and 
Barton: Tor. Fl. Southcott Bacton : Maw in Phytol. 186S, p. 19'2. 
— C- About Millbrook, near Devonport ; between Boscastle and 
Tintagel. On a house, Trevethan-lane [Falmouth], "probably 
placed there :" Polytech. 1856.] 
Cotyledon Linn. Navel wort. Pennywort. Kidney wort. 
C. Umbilicus {D.)—E.B. 325.—" Rocks and walls in the West " 
(Bab. Man.) — D- Common. In every old wall in the outskirts of 
Plymouth; Dartmoor; Tavistock. Teignmouth : Jord. in Phytol. 
1843, p. 827. On walls and rocks about Torquay, Ilsham, and 
Marychurch : Tor. Fl. Anstice cove : Lees in Phytol. 1851, p. 241. 
Old walls [Totnes], "common:" FLTot. Bideford,&c.,N. D. : Maw 
in Phytol. 1853, p. 792. — C' Common. Between Torpoint and 
St. John's; near Saltash ; Looe. Penzance: Gibs, in Phytol. 1846, 
p. 679. Falmouth: Mr, Daniel Pierson in Phytol. 1842, p. 30. 
Walls and old thatched houses [Falmouth], " common :" Polytech. 
1856. Trivial name in these parts, " Penny jiie.'' 
A specimen from Weston-mills, near Plymouth, is in P. I. Herb. 
