58 
FUNGI BRITANNICI EXSICCATE. 
No. 
51)4. Kiysi])1io ]\rnrtii ( Hcrnc4('i). Jink. 
595. Ery.viphe laiiiprocar])a (Plantaginis). Lev. 
596. Erysiplie lamprocarpa (Stachydis). Lev. 
597. Uncinula adunca. Lev. 
598. Phyllactinia guttata. Lev. 
599. Erysiplie horridula. Lev. 
600. Erysiplie communis. Schl. 
ATLAS DER DIATOMACEEN KUNDE. 
Nos. 13 AND 14. 
We have received a further portion of this work, and we regret 
to learn that the ill-health of Herr Schmidt has been the cause of 
the long delay in its appearance. Although the drawings have 
been made under the disadvantage of considerable personal suffer- 
ing, they are not inferior to any that have hitherto appeared. 
Part 13 contains two plates of Navicula, consisting of 103 
figures ; two plates of Campylodisci, with 29 figures. Three of 
the plates of Part 14 are also devoted to further species of that 
genus, of which 44 representations are given. The last plate is 
devoted to illustrations of the genus Surirella, and contains 26 
figures. 
Plate 49 contains 42 figures of the Navicula firma group ; 
many new species and varieties are given, and for the most part 
very correctly drawn. We particularly notice Fig. 1, doubtfully 
referred to N. columnaris, E., but which we believe is the same form 
as N. Iridis, figured in Ehrenberg’s Mikroscopischen Lebens in 
Amerika. Fig. 10 is an excellent representation of the tumid 
var. of N.fiima var. 8 Kitton {N. firma) var. tumescens, Grunow. 
According to Herr Schmidt this is not a variety of N. firma 
(Nach meiner Ansicht nicht mit N. fiima zu vereinigen.) Fig. 
12, N. citrea n.s., A. S., from Demerara, represents what might be 
taken as a short variety of the preceding species. The delineations 
of this group of forms are of especial interest to the Diatomist, 
exhibiting the widest divergence in outline and size, but the 
characteristic central blank space and the submarginal lines are as 
apparent in the pigmy N. dubia as in the gigantic N. Iridis. 
Figs. 43-53 represent the N. sphcerophora group (the genus 
Anonijeoneis of Pfitzer, and which he constituted to receive those 
forms with a blank space on one side of the median line only). The 
forms belonging to this group are N. Bohemica, E., N. sculpta, E. 
(not ndpta as in the description of the figures) == N. tumens of 
the Synopsis A. rostrata, E., Kiitz. and Donkin, and N. biceps, E. 
Plate 50 contains figures of the following species : — N. robusta, 
N. sectilis, N. {inaxima var. ?) excentrica, N. fiormosa, do. var., 
N. Liber, N. Bleiscliii, W. elongata, N. delata, N. maxima var. 
