BOTANICAL NOTES, NOTICES, AND QUERIES. 221 
hothouses frequently do not ripen their pollen. In the Botanical Garden 
of Berlin, the pollen of a Zamia was found to be imperfect, that is, its 
contents were shrivelled up. In Juniperus communis, where the pollen- 
grain lies for a year apparently imactive upon the nucleus of the ovule, 
the division of the pollen-cell seems to take place for the first time in the 
second spring; even in Taxus, where the pollen-grain lies inactive upon 
the nucleus for some weeks, the division of the pollen-cell not unfre- 
quently takes place within the anthers; in Thuja and Cupressus the division 
may be seen even before the shedding of the pollen. The same thing oc- 
curs in Larix, Abies, Picea, and even in Pinus, although the pollen-tubes 
of the latter do not reach the embryo-sac and corpuscula until the follow- 
ing year. 
In page 159 we find a reference to a figure which we do not 
see; and in page 125 we notice Chlamidococcus is translated by 
red show; we suppose this may be a misprint for red snow. 
We cordially recommend this work, believing it to be the best 
on the subject, if not the only one, and certainly will be the means 
of furthering the sciences of vegetable anatomy and physiology. 

BOTANICAL NOTES, NOTICES, AND QUERIES. 
To the Editor of the *‘ Phytologist.’ 
Sir,—In Hooker’s ‘Journal of Botany and Kew Garden Miscellany’ 
there is an article, by the editor, on “‘ Asplenium fontanum, Br., a British 
plant.” British botanists are indebted to the learned editor of the ‘ Jour- 
nal’ for his remarks on the claims of this plant to a place in the British 
flora; and as the ‘ Kew Miscellany’ may not come into the hands of all 
who read the ‘ Phytologist,’ a notice to the same effect will probably be 
acceptable to many of your readers. 
Hudson refers to the plant under the name of Polypodium fontanum, 
ed. 1762, and after quoting Hall, Bauhin, and Plukenet, gives the habi- 
tat as follows :—‘ Habitat in fissuris rupium et muris antiquis.” This 
is the general locality or habitat. The next is special :—‘ Supra Ham- 
mersham Church, D. Bradney.” Again, “ In locis saxosis supra Wybourn, 
in Westmorlandia.” There fortunately exists another testimony to the 
existence of this plant on Amersham Church, although like Hudson’s 
authority it is of an ancient date. In the Herbarium of Mr. Lightfoot, 
- formerly in the possession of Queen Charlotte, now in that of Mr. Brown, 
there are specimens of this plant, named in the handwriting of Lightfoot, 
and its places of growth stated as follows :—‘ Upon the rocks about Wy- 
bourn, Westmorland” (? Cumberland); and again, “‘This I gathered on 
Ammersham Church, Bucks.” The following remark is a judicious one : 
—“One does not see well how the accuracy of this statement can be 
called in question.” 
