1910] CURRENT LITERATURE 151 
grounds some of them, at least, are founded. Jofidea is proposed as a genus for 
Otidea pleurota (Phillips) Rehm (Peziza pleurota Phill.) on the ground that the 
tips of the asci are stained blue with iodin, while in the other species of Otidea 
(in the sense of Rrum, Rabenh. Krypt. FI. Pilze 3:1023. 1896) the ascus usually 
is not stained blue with iodin. By students of the Discomycetes this character 
is regarded at most merely as a specific character, and some of our best students 
(including Puttuirs) regard it as a variable one and do not place great stress upon 
it as a crucial test of specific difference.? Belospora is proposed as a genus for 
Belonioscy pha ciliatospora (Fuckel) Rehm, ibid. 744 (Ciboria ciliatospora Fuckel), 
on the ground of the presence of a cilium at each end of the spore. Later REHM 
(ibid. 1267) says that BrEsADOLA justly regards this species as only a young form 
of Helotium scutula, the cilia soon disappearing and the spores becoming divided. 
Quite a number of genera have been included in others, but this is done “only 
for the sake of the beginner, when the descriptions reveal no differences.”’ In 
some of the genera so treated the differences indicated are certainly greater than 
those on which some of the new genera are based. Lloydiella, for example, is 
included in Hymenochaete, although the differences are clearly indicated. 
Whether Lloydiella is a valid genus may be questioned, but it certainly does not 
bear so close a relationship to Hymenochaete as it does to Stereum, on certain 
Species of which it was based because of the presence of hyaline cystidia, while 
Hymenochaete possesses colored setae. 
here is a conveni in having the genera in all of the volumes of SaccarDo’s 
Sylloge brought together for reference. The glossary of Latin and English terms, 
Covering 28 pages, will be of great value to students using SaccaRDo’s work, who- 
have not a good command of Latin.—Gro. F. ATKINSON. 
A new laboratory manual 
Frye and Rice have met their local needs, and perhaps more general needs 
as well, by the publication of a laboratory manual.’ The outlines are the outcome 
of a test of two years, and they are now being used in the university with students 
who have not had botany in high school. Both authors have had experience 
in high schools, and should be able to judge what is suited to high-school pupils; 
both have been students of the botany of the northwest for some years, and should 
know what material is to be recommended for elementary classes. 
The course is divided into two parts: the vegetative organs of vascular plants, 
and types of the larger groups of plants. The first section treats of leaves, stems, 
Toots, seeds, and the relation of plants to their environment; while in the second 
the usual four groups are presented. In the first four topics of the first section 
the exercises are those usually found in this connection, but in the last one there 
ers 
*See Cooker, M. C., Observations on Pesisa calycina, Grev. 4:169-172. 1876. 
$ Frye, T. C., anp Ricc, Gro. B., Laboratory exercises in elementary botany 
based on the plants of the Pacific Northwest. pp. 75. Seattle: University Book Store. 
TQO9. 
