162 REVIEWS. 
of one or two orders of plants formerly comprehended under the 
term Rubiacee, we leave to the eminent systematists to whom 
our author refers us: who shall decide “ when doctors disagree” ? 
We wish our readers to judge for themselves.— We have received 
with the above another paper, on the colouring matter of the 
flower of Strelitzia regine, by the same author, in which we are 
informed that the xanthic (yellow) and cyanic (blue) (we trans- 
late these terms for the benefit of our junior readers) series of 
colours are presented in the same flower. In the blue part of 
the flower Mr. Lawson found the colouring matter, consisting of 
spherical granules, of an intense blue or bluish-purple colour, 
with occasional cells containing similarly-shaped granules of 
bright crimson. Also that in the yellow part of the flower 
the colouring matter appeared in slender filaments, imstead of: 
spherical granules. This is a very interesting subject, and we 
are glad to give publicity to observations which increase the 
number of facts known in reference to one of the arcana or se- 
crets or mysteries of nature. We hope to return to this topic, 
the colours of flowers, on a future occasion, and in the mean- 
time we will be obliged to our correspondents for the results of 
their observations on this subject. 
Notes and Queries : a Medium of Intercommunication for Literary 
Men, Artists, Antiquaries, etc. No. 294. 
We are induced to notice the above-mentioned number of this 
most useful periodical, which has been sent us by a friend, because 
it contains an article entitled “ Notes on Trees and Flowers,” of 
which the following is an account :— 
Several queries from time to time on this interesting subject have ap- 
peared in ‘WV. § Q.’ [these initials are representative of the publication 
from which we take this extract], relative to books which treat of it; and 
T am in hope that the following Notes from a commonplace book may in- 
terest some of your readers, and elicit much additional information from 
correspondents who have more leisure and opportunity than myself. 
The author of this paper, which is too long for our Journal, 
divides his subject as follows :— 
Flowers and trees dedicated to deities: example, Oak to Jupiter, ete. 
Flowers and trees that bear the name of their original home, ete.: Bar- 
- berry. 
