CANARIAN AND MADEIRAN ORASSULACER. 201 
ebay with a halo of Saprolegniaceous fungi, the growth of which 
an then be studied for weeks. he les, however, should first be 
wa 
surface of the water. When flies are abunda nt, a store of them 
should be killed — desist to enable the oultures to be carried 
on through the win 
nks are ve to Miss A. L. Smith for her kind help in the 
determination of the specimens. 
CANARIAN AND MADEIRAN CRASSULACEZ. 
By R. P. Murray, M.A., F.L.S. 
Sedum lancerottense, sp. nov. Glabrum, tortuosum, foliis 
subovoideis, floribus breviter pedicellatis in cymam an nfractam 
bipartitam terminalem scorpioideam bracteatam dispositis ; sepalis 
5, obtusis ; staminibus 10. 
ab. In rupibus abruptis el Risco dictis ins. Lancerottensis. 
In May 1892 I obtained a single specimen of this species, leafless, 
and with only the remains of a cyme, on the cliffs of el Risco in 
is 
flora, which, though so rich in Sempervivum, has till now possessed 
not a single Sedum, with the exception of the widely spread South 
European 8S. pb L. Sedum lancerottense is nearly allied to S. 
nudum Ait. and 8S. fusiforme Lowe, both endemic in Madeira. 
the former of ‘ee it perhaps comes ree by its leaf characters 
and in the number of its stamens, but ers widely in habit. 
Leaves pale green. Cymes remarkably ans almost recalling the 
arched internodes of Haeasbouleg reptans L. Perennial. Described 
from cultivated specimens. 
Sempervivum percarneum, sp. nov. 5S. caule frutescente, 
FAMOEO ; foliis a spathalatis Lag ae acuminatis, serrato- 
ciliatis; florib sis in thyrsum latum digestis; ramulis 
puberulis; calycis: puberali ar basabi triangularibus; squamis 
perigynis inconspicuis (aut nu 
Hab. In insulis Caaaaisibes 
One of the most conspicuous ‘plants of the genus in Gran 
Canaria. sei iss ag yoo o understand how it has so long remained 
without a I ws abundantly about Guia, and also in and 
near the Caldaes de ‘Beadaenms both: these localities being in the 
north of the island. The only specimen which I have seen from 
any of the other islands is at Kew, where it is placed in a packet 
marked “ §. Youngianun Webb.” The sheet is labelled, I believe, 
in Gay’s handwriting, from whose herbarium it was received, 
“ fleurs violettes Ile de Fer, in rupestribus el Golfo, 2 Mai 1855. 
A. de la Perrandiére,” and bears a MS. name. It agrees exactly 
with Canarian specimens. There is a single sheet of S. percarneum 
in Webb’s herbarium at Florence. To show the confusio on into 
