BOOK-NOTES, NEWS, ETC. 801 
forms in orderly development from Verticillaria Solani, through 
Fusarium Solani and Cephalosporium, to Nectria Solani, which, with 
its resting-spores, closes the cycle of seasonal growth. He pointed 
out the diffien ulty of culture in the matter of parasitic species, a 
difficulty which might in the future be overcome, cultures hitherto 
having necessarily been confined to saprophytic species capable of 
cote th in nutrient media. 
E latest part of the Bibliotheca Botanica (Heft 57, Stuttgart, 
1903) S6idiats of a paper by F. Heydrich on the tetrasporangium 
. the Floride@, in which he continues the serie of his researches 
n the manner of their development. He fin strong “organic 
similarity” between the auxiliary-cell of the fertilized carpogonium 
and the tetrasporangium mother-cell. In the one case the sporo- 
variegata Zan., two cells are given off from a pericentral cell, the 
lower one being designated by Heydrich the stalk-cell ee 
or karyoplastic cell, and the upper one the protospore cell. 
wer ly om — forth a small tube towards the upper ei - 
spore-) ¢ soon as a connection is established between 
he upper of these two nuclei passes at once into the roe 
an 
is obvious. The. author finds that much the same method of 
development occurs in Fauchea repens Mont., Ceramothamnion, 
Callithamnion, = os Diesel and others. Figures of the 
various stages a n. 
Tue fifth vt of Mr. F. M. Bailey’s Queensland Flora carries 
ny the enumeration from Loranthacea to Lemnacea: it includes 
toughly-executed but useful illustrations of a few of the more 
interesting plants described. The work is paged continuously 
throughout, and so far consists of 1700 pages; this seems to u 
an inconvenient apg although reference is made easy by a 
good index to each par 
HE last part of = Linnean Society’s Transactions is devoted 
to “A ( Contribution to the Freshwater Alge of Ceylon,” by re srs. 
-&G. 8. West. It is illustrated by six plates, and is pri 
the handsome but re i manner which characterizes the 
troduction is dated “December, 1900”’; the paper was read 20 Jun 
1901; ¢ the date of publication on the cover is March, 1902, but it 
phenomena—s ate as ee mnichioey? ’ the as of plants, &c. He tells 
us that “ farmers’ boys in some parts are said to regulate their 
