157 
character of diatom structure than was formerly possessed. The 
two papers mentioned are valuable contributions to the literature 
of the subject. Mr. Smith’s paper is accompanied by two plates, 
containing twenty excellent phototype illustrations. 
Le Diatomiste. J. Tempére, Paris. 
The fourth number of this serial, just issued, is entirely de- 
voted to a monograph upon the genus Pleurosigma, by M. H. 
Peragallo. The article embraces sixteen pages of text, and is 
accompanied by five plates, containing one hundred and nine 
figures. A synoptical table is given, which is so concise that it 
is likely to afford material aid in tracing species. GoW Be 
Index to Recent Literature relating to American Botany, 
Abies religiosa. (Gard. Chron. ix. 304, figs. 69, 70). 
A Botanical Excursion into Lycoming and Luzerne Counties, 
| Pa.] (College Student, xi. 108-110). 
An interesting account of an autumn expedition by Messrs 
J. K. Small and A. A. Heller, students in Franklin and Mar- 
shall College. In the list of plants collected we note the discov- 
ery of Aster concinnus, Willd., as of special interest. 
Apodanthes— Two Undescribed Species of. B. L. Robinson. (Bot. 
Gaz. xvi. 82-84, Pl. ix). 
Descriptions and representations of Apondanthes Pringle, 
Watson, on branches of Dalea frutescens and A. globosa, Watson, 
on Bauhinia lunarioides, both collected by. Mr. C. G. Pringle, 
in the Sierra Madre, near Monterey. 
Bessera elegans. (Gard. and For. iv. 124, f. 24). 
_ Black Rust of Cotton ; a Preliminary Note. George F. Atkin- 
son. (Bot. Gaz. xvi. 61-65). 
A discussion of the parts played in the above disease by 
Cercospora Gossypina, Colletotrichium Gossypit, Macrosporium 
nigricanticum, [n. sp.], Phyllosticta Gossypina and Alternaria sp.? 
Cuscuta Glomerata with its Host—The Union of. .W.C. Stevens. 
(Trans. Kans. Acad. Sci. xii. 163, 164, illustrated). 
Erythrea Pringleana Wittr. nov. spec. Veit Wittrock. (Bot. 
Gaz. xvi. 85). Based on C. G. Pringle’s, No. 2595. 
Mr. Pringle adds the following note: ‘“ It may be well enough 
to state in this connection that what was distributed as ‘ J/icrocala 
a 
