80 
LINNEAN SOCIETY OF LONDON. 
Nov. 18th.— William Carruthers, F.R.S., President, in the 
chair. Mr. Henry Bury was elected a Fellow of the Soci 
Mr. W. H. Beeby showed specimens of Callitriche truncata Gussone, 
from near Westerham, Kent (see Journ. Bot. 1886, p. 8346).—Mr. 
Morris exhibited two enlarged Rpg acne of the Castilloa rabber 
tree of ees America (see Trans. Linn. Soc. Bot. 2nd ser. vol. ii. 
pt. 9 e larger (iokiersbe illustrated ge manner in peer ch 
trees were treated to extract rubber, by a special cut from above, 
downwards. ‘Trees of ten years old and upward are said to yield 
about eight gallons of milk at the first bleeding. This milk 
is coagulated by the use of the juice of Calonyction speciosum, and 
the rubber prepared by washing and pressing. Mr. Morris 
described the habit and growth of the trees in their native forests, 
d expressed the opinion that for cultural purposes this rubber 
or rae and yield at the end of ten years at the rate of twenty 
shillings per tree in marketable rubber. In British Honduras trees 
exhibited and made remarks n specimens and drawings of the 
tea of Coryanthes, acrantha Hook, and C. maculata 
a e mentioned that Mr. Rodway, of Dem: had 
genus by bees, as averred by Criiger, did in in all, 
inasmuch osa he had noticed that a kind of green fly 
was the fertilizer.-— Mr Murray exhibited specimens of 
Ge 
Rhipilia, in spirit, from Grenada, West Indies; these were obtained 
by diving, from a depth of five fathoms.— Mr. W. pews 
exhibited soloueed” drawings of Hydnora abyssinica and H 
sensis, sent by Signor Beccari, from Florence. They clearly howe 
ramentiferous surfaces have long ramenta at their margins, whereas 
there is no hook-like process in H. Bogosensis, and the margins are 
naked. Both species differ from the common H. africana in the 
Masters r 
pedium.”’ i this contribution he stated that the _ may 
be sought in the course of development, in the minute natomy and 
and of the offshoots from them, affords more conclusive evidence of 
e construction of the flower, and, if studied in conjunction 
with the comparative meepnoloey, leads to very serge results. 
y these means it becomes easy to refer 
type seen in a regular pentacyclic ‘aia trimerous mud nocotyledon, 
from which it is reasonable to infer it may have ies opis The 
Se eee se 
