pl. z. Some years later further collections were made whic 
534 
morphology certainly makes it most convenient to arrange them 
under fungi as ascolichenes and basidiolichenes rather than a sep- 
arate class. ALBERT SCHNEIDER.. 
Flora of Nebraska—Edited by members of the Botanical — 
Seminar of the University of Nebraska. Introduction and Part 
I, Protophyta-Phycophyta ; Part 2, Coleochaetaceae, Characeae 
(4to, pp. 128, p/. 36. Lincoln, Nebraska, published by the Sem- 
inar, 1894). | ? 
The beautiful work here noticed must long hold first place in 
the published results of the exploration and study of a local flora. | 
It is hard to find words in which to express our gratification at its 
- appearance, and we have tried in vain to find any point which is _ : 
fairly open to adverse criticism. Beginning with a synopsis of 
the larger groups, including families, and an introduction con- — 
_ tributed by Professor Bessey, in the details of which there is room ; 
for much difference of opinion, there follow concise descriptions — 
of the classes, orders, families, genera, species and varieties of 
_ Protophyta and Phycophyta found within the State, contributed — 
by Mr. DeAlton Saunders, and of the Coleochaetaceae and Char-— 
aceae by Mr. Albert F. Woods. The descriptions are well drawn, — 
the typography excellent and the plates accurate and well exe- 
cuted. We tender our cordial congratulations to all concerned in 
the production of the book and to all who may have opportunity 
<< AO use it. N. |. Be 
«Ueber neue fossile Phlanzenreste vom Cerro de Potosi. H. Engel- 
_hardt. (Abh. Isis, Jahrg. 1894, 3-13. pd. 7.) — ee 
g This is the third contribution published on the flora of the 
- volcanic ash deposits of Cerro de Potosi, Bolivia. The author of 
' the present paper first gave an account of the plant remains, with 
_ descriptions of six new species, in Abh. Isis, Jahrg. 1887 , 36, 3% 
h were 
_ examined by Dr. N. L. Britton, who published the results of h 
examination in Trans. Am. Inst. Min. Eng. 21: 250-259, wil 
descriptions and figures of ten more new species. The preset 
paper adds thirty-five to those already published, and it 1s 
interest to note that they have nearly all been referred to S¢ 
which now inhabit the region and to species evidently ch 
? 
if not identical with living ones. 
