336 
39. CRASSTJLACE^E. 
to harden or stiffen and at the same time strengthen and pre- 
serve their lines. For this purpose a large quantity of the pi. 
being collected, the bark of the stems is stripped off, and pounded 
small in a large rude mortar. The fishing-lines are then stretched 
out and rubbed well backwards and forwards for some time with 
handfuls of the pounded bark, and steeped afterwards in some 
alkaline liquid. The viscous resin has no doubt the chief effi- 
cacy in this process, acting mechanically like wax on thread. 
The result is the imparting of stiffness, strength and durability 
to the lines, which are also rendered black and shining by the 
operation. See Trans, of Linn. Soc. 1. c. 
In Lanzarote Setup. (. JEonium ) balsamiferum WB. is used by 
the fishermen, under the name of Alfarroba or Farroba, for the 
same purpose. See WB. i. 192, 193, with a note on the deri- 
vation of the word Ensayao. 
This sp. has never yet been found in the Canaries. On the 
other hand the common Can. true S. canciriense L. is certainly 
not found in Mad., though young vigorous large-leaved pi. of 
S. glutinosum Ait. before fl. have much resemblance to it in 
habit and general aspect. Tb,e mistake of including S. cana- 
riense L. in the Mad. lists originated from Solander having so 
named prima manu an undoubted Mad. spec, from Masson (Ma- 
dera Fr. Masson 1776 in rupibus) of S. glutinosum. This indeed 
he or Mr. Brown afterwards corrected ; erasing the words u ca- 
nariense Linn.” and writing u glutinosum MSS.” over them. 
Still he has certainly enumerated in his MS. List of Maderan 
Scmpcrviva S. canariense L. as well as S', glutinosum, which last 
he appears also to have once called bituminosum and which is 
perfectly identified, even in this list, by the word “ Insayam ” 
in brackets appended, lie has however still one name, u S.pa- 
niculatum ,” in this list for which I am quite unable to account*, 
and can only suppose it (for there is no clue beside the name 
whatever for its exact identification) possibly to stand for the 
true S. arboreum L. ; his spec, marked “ Sempcrv. arboreum Linn. 
Sp. Fl. 664, Madera” in BII., being certainly merely a vigorous 
young pi. of his own Sedum divaricatum. 
* Sempcrv. dumosum supra would have been called a Sedum by 
Solander. 
