_ BOTANICAL NEWS. 127 
printed in abstract in No. 142 of its ‘‘ Proceedings,” Dr. H. Airy 
discusses the meaning of Phyllotaxis, or leaf-arrangement. Assuming 
that all have been derived from one ancestral leaf-order, the author 
considers the distinctions (3) as nearest to the original, and shows by 
experiment how this arrangement will, under different degrees of con- 
traction, with twist, assume successively all the various spiral 
orders that exist, 4, 2, 2, x, &c. He points out that the period at 
text is C. Kalchbrenner, of Wallendorf, and the figures are chiefly by 
zes, of Miiggeburg, who has devoted many years to, the in- 
gary an 
m Hungarian and L parallel columns, and the general form of 
the book that of Fries’ ‘ Icones sel. Hymenom. Sueciee,” to w 
it will form a companion volume, or continuation tern Europe 
ae hi by 
argyreus, K., A. (Trich.) Centurio, K., A. 
(Cleoteybe) piled Sy Ye A. (Collybia) atramentosus, K., A. (Coll.) 
plumipes, K., A. (Coll.) rancidus, Fr., A. (Mycena) casiellus, K., A, 
(Omphalia) reclinus, Fr., A. (Omph.) rca Som Fr., A. (Pleurotus) 
sapidus, S., A, (Pleur.) pardalis, 8. A. (Pleur.) superbius, Bij vue 
(dnnularia* ) Fenzlii, §., and A. (Pluteus): patricius, S. The 
price of the part, which is published at Pesth, is 6 fl. austr. (=12s.) 
It is hoped that a second part will appear before the end of the year. 
The instructive address of Prof. Asa Gray, delivered last August 
at the American Association, and of which we extracted the most 
valuable portion (vol. x., p. 309), has been printed ina separate form, 
with the addition of an appendix, in which the temperate extra- 
lants 
and Europe, which we intend to print in another page. 
0 ogee: , 
* Equals the subgenus Chameota, W. . Smith in Journ, Bot. 1870, p. 213. 
