1883. | Botany. 1285 
brown, subcrustose mycelium composed of closely appressed, 
subanastomosing brown hyphe extending for the most part along 
the margin of the leaf or forming orbicular patches about 1⁄4% 
diam., on which are seated the crowded, small (55-75.) sub- 
globose (astomous ?) perithecia which are flesh-colored under the 
pocket lens and bright straw color under a higher power, and 
contain 4-8 obovate sessile asci 30-40 x 22-354., with eight, 
ovate 2-celled sporidia 16-17 x 7-8. almost exactly like those 
of the preceding species, having the endochrome divided into two 
distinct parts separated and surrounded by a hyaline border. On 
living leaves of Persea palustris —F. B. Ellis, Newfield, N. F., and 
Dr. Geo. Martin. 
BoranicaL Nores.—In the October Overland Monthly, Dr. 
Parry contributes an interesting article upon “ Early Botanical 
laure, Russula incarnata, Marasmius fagineus and M. capillarus. 
Excellent lithographs are given of the first and second.——Fas- 
cicle vr of Van Heurck’s Synopsis des Diatomées de Belgique has 
lately been received. It completes the plates, which are now to 
be followed by a volume of text. There are 132 plates. 
Henry Brooks, of Boston, has prepared sets of sections of woods 
arranged for instruction in schools. The sections are about 2x4 
inches, and are neatly mounted between plates of mica. Three 
_ Sections (one cross and two longitudinal) are given for each kind 
of wood, and these are thin enough to make their study w th the 
Naked eye, or with a low power, very easy and instructive. It is 
to be hoped that many schools will supply themselves with these 
sets, 
