108 
to the chemical n: produced by it than to purely tcs points 
in connexion with it, and have refrained from allowing ourselv 
into the state of Bepolibticy which characterised several of tie West 
Indian Islands. 
I quite agree with your views regarding seedling canes. As far as 
my observations have gone no variety of cane is immune from the prae 
of this fungus, provided that the health of the cane is weakened in any 
way, and that it suffers from insect attack or other mechanical i iex to 
its tissues. 
remain, &c. 
(Signed) J. B. Harrison. 
N.B.—No canes have been introduced into this Colony from 
Barbados or elsewhere since May or June, 1890. It is not likely, 
ie that the disease has been recently introduced into the 
olon 
W. T. Thiselton-Dyer, Esq., C.M.G. 
DXV.—HAND-LIST OF CONIFERZE GROWN IN THE 
ROYAL GARDENS. 
The is of this publication, wits isonsale in the Royal Gardens, 
is reproduced :— 
The Suton Hand-list Rid properly d none of that of the 
“ Trees and Shrubs grow the Arboretum,” but so many persons 
possess collections of Conifer wh are not hae ested in i her ligneous 
plants that there was an obvious convenience in treating them sepa- 
u g : 
rather group, Conifere, is so well defined that it is desirable to 
enumerate in one list all the species actually in cultivation at Kew. 
These comprise 227 species, with 340 varieties, belonging to 37 p 
Sir Joseph Hooker, the late director of the Royal d had con 
merus the preparation of a Catalogue of the Kew Pinetum. hi 
of it he had drawn up a brie ef review of the "Heeteeare of the 
E which he has now, after revision, kindly Ei to be used :— 
In the following list the species are referred to the Saint id 
which they have been placed by the latest authorities, who have d 
the order Conifere. That such an authoritative list should be ib. 
lished is the wish ef all intelligent cultivators of these interesting plants, 
and its publication in this country is rendered all the more needful from 
the fact that the British cultivators alone persist in referring the Silver 
Firs to Picea, and the Spruces to Abies, a practice long abandoned on 
the Continent, and which bas not been adopted in America. - And if, 
I hope, the current nomenclature will in Fore be adopted in regard to 
the Latin names of these genera, I would further urge a reform in 
respect of their English equivalents, in so far as to confine the use of 
the words Pine to the species of Pinus, of Spruce to those of Picea, and 
of Silver Fir to those of Abies. We should then be in accordance with - 
the universal practice throughout North America, which is the head- 
quarters of all three genera, where a Pine is never — Fir, nor a Fir 
a Spruce, nor a Spruce a Pine. 
The i ing historie sketch of the various essays of botanists to 
limit the genera and species of Abietinee, shows how Mem have 
