243 © 
With regard to New Zealand, the uncinate form of ). multipartitum 
has not been observed, but NV. uncinatum, J. Ag., is represented by 
several specimens. 
It may also be mentioned that several seasons’ study of the genus 
Nitophyllum on the English coasts has clearly demonstrated that 
important factors. It is interesting to note that the variations 
which ‘occur in the European species referred to, are closely 
— by the Australian species N. crispum and WN. affine. 
uch observations strengthen the view that not a few of the 
so-called species from Australia are in reality only forms. 
Aphanocladia delicatula, Falkenb., in Engl. and Prantl. Pflanzen- 
fam., p. 444 (1897); Rhodomelaceen, p. 288, tab. 2, figs. 15-17 
(1901). Rytiphloea delicatula, Harv. in Hook. Flora New Zealand, 
p. 224, pl. 112 D (1855); Laing Rev. List, p. 355 (1901). 
A fine tuft of this rare species was forwarded to Kew by Mr. R. H. A. 
Shakespear from Little Barrier Island, The gathering is interest- 
ing, not only as coming from a northern locality, but also that, 
according to Laing, the plant has not been collected since Lyall’s 
ti The Little Barrier Island plants agree in every way with 
Lyall’s original specimens. 
Falkenberg removed the present species from Rytiphloca to a 
special genus Aphanocladia. The latter he placed amongst the 
Pterosiphoniae, a sub-family distinguished from the Polysiphoniae 
mainly by the distichous branching. The new position is decidedly 
more natural. Aphanocladia differs from Pteresiphonia in possessing 
only four pericentral cells, and by the spiral arrangement of the 
tetrasporangia, : E 
With the exception of a record by Reinbold from New South 
Wales, A. delicatula, Falkenb., is only known from New Zealand. 
XXXII—ADDITIONS TO THE WILD FAUNA AND 
FLORA OF THE ROYAL BOTANIC GARDENS, 
KEW : IX. | 
NEMATODA. 
Aphelenchus olesistus, Ritzema Bos ; an eelworm in fern fronds. 
Quite recently, conspicuous, well-defined, brown stripes or 
irregularly shaped blotches, were observed on the fronds of various 
species of ferns growing under glass. a. ig examination 
