ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 665 



Octaviania lutea.* — Herr K. Hesse describes under this namo a 

 new fungus found on decaying beech leaves in Hesse. 



Sphserosoma fragile.f — Under this name Herr R. Hesse describes 

 a new underground species, and takes the opportunity of revising the 

 position of the genus, which he places, with Tulasne, among the 

 Piscomycetes, near to Bhizina, and not, as proposed by Berkeley and 

 Broome, among the Tuboraeea3. It is altogether destitute of 

 perithecia. 



Uredineae of Illinois J — Dr. T. J. Burrill gives a complete list of 

 the Uredineaa hitherto found in Illinois. It includes 20 species 

 of Uromyces, 48 of Puccinla, 5 of Phragmidium, 1 of Bavenelia, 1 of 

 Gymnosporangium, 1 of Cronartium, 4 of 3Ielampsora, 2 of Coleosporium, 

 1 of Uredo (isolated), 2 of Cseoma (isolated), 41 of JEcidium (isolated), 

 and 2 of Bcestelia (isolated). 



Protophyta. 



Mastigocoleus, a new genus of Sirosiphonacese. § — Under the 

 name Mastigocoleus testarum Herr G. Lagerheim describes a new 

 species and genus of Phycochromacese found attached to the shells of 

 marine molluscs, the first-observed marine species of Sirosiphonaceae. 

 The diagnosis of the genus is — Trichomata vaginata, ramificatione 

 vera irregulariter ramosa, cellulis vegetativis uniseriatis cylindricis 

 composita. Rami biformes, partim cylindrici, partim flagelliformes. 

 Heterocystas singulae (rarissime binae) terminales vel laterales, nun- 

 quani intercalares. Multiplicatio hormogoniis et cellulis chroococ- 

 coideis. Sporae ignotae. Contentus cellularum homogeneus. The 

 filaments appear to secrete an acid which dissolves the lime of the 

 shell. The genus seems to have the greatest affinity with Mastigo- 

 cladus Cohn, found in thermal springs, but differs in its terminal or 

 lateral heterocysts and uniseriate branches. 



Presence of Micro-organisms in the Living Tissue of Healthy 

 Animals. || — Herr G. Hauser has subjected this question to fresh 

 examination, with the following results : — In the living tissues and 

 tissue-fluids of healthy animals he finds neither pathogenic nor any 

 other description of bacteria. When all kinds of Schizomycetes are 

 excluded from animal tissues preserved in oxygen, hydrogen, or 

 carbonic acid, in water or a nutrient solution, but the access of 

 atmospheric air permitted, they undergo a similar retrogressive 

 metamorphosis to that of the tissues in the living body, which decay 

 in consequence of simple nutritive disturbances without the action of 



* Priugsheirn's Jahrb. f. Wiss. Bot., xvi. (1SS5) pp. 255-61 (1 pi.), 

 t Ibid., pp. 248-54 (1 pi.). 



j Proc. Ainer. Soc. Micr., 8th Ann. Meeting, 1885, pp. 93-102. 

 § Notarisia, i. (1886) pp. 65-9 (1 pi.). 



|| Arch. f. Expe'r. Patbologie u. Pharmakologie, xx. p. 160. See Natur- 

 forecher, xix. (1886) p. 94. 



