LINNEAN SOCIETY OF LONDON. . 223 
except under the same atmospherical conditions in which they 
grow in nature. Two fatal objections, he said, might 2 taken to 
the theory: (1) the one having reference to Os % y peculiar 
nature of the parasitism it assumes ; mae the other &. 3 the ae 
that, notwithstanding a similarity of appearance, there were 
reality no true fungal-mycelia nor true algal-colonies in Bt ete 
As to any direct genetic or any indirect aE connection 
the resorption ae the lower BN of the cortical structure, they 
ecame free, and constituted the thin gonidial ie Se ere 
seen lying amongst the medullary they are often attached to these, 
not as the result of any bee but by means of the lichenin 
which permeates the whole thall The origin of the gonidia and 
their relation to the rest of the jicliel thallus, the author stated in 
conclusion, thus belonged to the very elements of morphological 
Botany. — There followed a note on a remarkable variation in the 
leaf of Banksia marginata, observed by Mr. J. G. Otto Tepper near 
Adelaide, South Australia. He de Eee the plant, and then 
enus of riper acee from Madagascar. According to Dr. J. Urban 
(the latest authority) the order consists of five genera and eighty- 
three species, distributed in America eae . Carolina and Mexico 
to the Argentine Republic, and in Africa from Abyssinia to Mozam- 
bique and the Cape of Good Hope; while paras are found in the 
island of Zanzibar and Rodriguez. The plant now added to the 
order was obtained by Dr. C. Rutenberg on Nossi-bé, a small island 
on the N.W. of Madagascar. Its agence incline Mr. Rolfe to 
recognise in it the type of a new genus, as above named, with a 
position between Mathurina and Turne era ; its most remarkable 
character being its glassy transparent calyx, which is totally 
destitute of chlorophyll or other colourin, er. 
May 1. — Prof. P. Martin ena F R S. Vice-President, in 
the chair.—Messrs. W. Dennison Roebuck and ¥. Newton Williams 
were elected ordinary Fellows, — ssors KE. Haeckel, of Jena, 
he 
Philippines. He refers to Ray’s Appendix, Hist. Plant. iii., the 
material therein being furnished by Father Camell, and still ex 
in the Sloane Collection, Brit. Mus., though hitherto sauce a 
