CANARIAN AND MADEIRAN CRASSULACER. 208 
Sempervivum Barzatum Chr. Sm. This species derives its 
name from the long ere adventitions rootlets with which it 
is said to be clothe ut ave never seen such a specimen, 
has no radicles, and is labelled “ Hort. Paris.” My own plant, 
collected above Agua Mansa, in Tenerife, shows no trace of them, 
and Bourgeau’s exsiccata under this tame are in the same con- 
dition, so far as I have seen them. an in no way distinguish 
these Tenerife plants from thie which I collected in many places 
in Palma, which are the onium cruentum of Phyt. Can 
yt. « ‘Pro- 
bably EE. " Bentejui Webb and . sétrepsicladum Webb Berth. should 
also be placed under S. barbatum, which, being the oldest name, 
must be retained, however inappropriate to the usual condition of 
the species. 
Sempervivum Meyeruermm (Bolle). a ties Bolle described 
(Bonpl. vii. 239), under the name of nium Meyerheimit, a 
noticed by 7 ty other botanist. In June, 1895, I found a few 
plants, which I think may belong to it; at least the single root 
which I was able to coax into flower answers fairly well to his 
description, as does also the locality “ in rupestribus apricis non 
procul ab urbe Funchal.’’ My plants were collected near the base of 
the sea-cliffs, about two miles to the east of that town. I believe 
that they were of hybrid origin (S. glandulosum x glutinosun), and 
that they do not constitute a ae Margy The inflorescence is 
quite that of S. glandulosum Ait., while the leaves are much nearer 
those of S. glutinosum Ait., and . mee form a flat rosette as in ‘Ss. 
Sictdedowuel The ciliz, which are nearly as broad as ee and 
transparent, also agree with those of S. glutinosum. The few plants 
which I saw all grew close together, and both the iresecr parents 
are exceedingly common in Madeira. I should add that the 
peculiar and (from a collecting point of view) most unpleasant 
viscidity of S. glutinosum was e entirely absent. 
‘Hybrids seem to be extremely rare in the genus, but I see that 
Nyman ey two or three in his Conspectus 
Semprervivum Parva Lowe (Hook. Bot. Mag. t. 5593). This is 
the ohdesk name: Avonium Castello-Paive Bolle is the same plant. 
Sempervivum sepirotium H. Chr. acid st tse Bolle. 
Greenovia sedifolium Webb, syn. ined. eign found this 
Species very sparingly in ‘Palma, on Pict y the roadside near 
Candelaria, in June, 1892. It was before this known only from one 
spot in Tenerife, La Hermita de Masca, near Santiago. The habit 
is ong now of S. Saunderstt H. Chr. 
Sem anuLzrorme Haw. We must, I think, on the 
whole, hold 1 Tans correct in supposing a mistake to have been 
tte in ascribing this species to Madeira. tinyorth’s s description 
very brief, and runs thus:—‘‘S. tabuleforme, subcaulescens 
foliis densissime binhrinisis et in planum rotundatum absolute 
