193 
as well as saprophytic forms; the existence of gelatinous zoogloea j the exist¬ 
ence of cilia, even in Coccus forms, and the multiplication by fission are all 
bonds of kinship with Cyanophyceae. One objection to this view is the total 
absence of endospores in algae. The formation of endospores connects the 
bacteria with the flagellate infusoria, while in their branching they recall 
fungi. Botanists have laid great stress on the fact that the spores ot some 
bacteria germinate at the poles and others at the equator. The fact is, both 
methods occur in the same species. (E. F. S.) 
(See also Nos. 527, 543, and 588.) 
H.—MORPHOLOGY AND CLASSIFICATION OF MYXOMYCETES. 
643. Balliet, Letson. Slime molds. The Ornithologist and Botanist, vol. i, Bing¬ 
hamton, N. Y., Nov., 1891, p. 85, 1 col. Under this heading, describes popu¬ 
larly Protococcus on flowerpots. (D. G. F.) 
644. Bucknall, Cedric. The fungi of the Bristol district. Part xiii, Proc. Bristol Nat. 
Soc., new ser., vol. 6, Bristol, 1891, pp. 274-277. A list of thirty fungi of 
various orders added to the flora of Bristol, with descriptions of some of the 
species. The following are described as new: Oligonema furcatum, Perich- 
cena confusa, Masse in lift., Lachnella fragariastri, Phil, in litt. (M. B. W.) 
645. Lister, Arthur. Notes on Mycetozoa. Jour, of Bot., vol. 29, London, Sept., 
1891, pp. 257-268, pi. 5. Contains descriptions of fourteen species not in¬ 
cluded in Cooke’s Myxomycetes of Great Britain, with five plates. The fol¬ 
lowing new species are described: Physarum calidris , Cornuria depressa, Hem¬ 
iarcyria intorta. (M. B. W.) 
646. Niel, M. Remarques h propos des Tubulina fragiformis, Pers., et cylindrica, Bull. 
Bull. Soc. Mycol. France, vol. 7, No. 2, Paris, June 30, 1891, p. 98. Points out 
the differences between the two species as mentioned in previous descrip¬ 
tions. Does not see Saccardo’s reasons for combining them. (E. A. S.) 
647. Rex, Geo. A. Hemiarcyria clavata, Pers. Proc. Acad. Nat. Sci. Phila., Part 
ii. Phila., 1891, pp. 407-408. Records discovery of spinose processes on the 
spiral thickenings of the threads of capillitium of this species by use of oil 
immersion lens. (D. G. F.) 
648. Rex, Geo. A. New American Myxomycetes. Proc. Acad. Nat. Sci. Phila., Part 
ii. Phila., 1891, pp 389-398. Describes the following species as new: Phys¬ 
arum nucleatum, Physarum penetrate, Chondrioderma aculeatum, Stemonitis 
Webberi, Stemonitis Virginiensis, Stemonitis nigrescens, Comatricha irregularis , 
Cribraria violacea, Cribraria languescens , Trichia Andersoni, Hemiarcyria long- 
ifila, Hemiarcyria Varneyi, H. obscura, Dianerna, nov. gen., D. Harveyi. (D. 
G.F.) 
649. Rex, Geo. A. Trichia proximella, Karst. Proc. Acad. Nat. Sci. Phila., Part iii, 
Dec. 16,1890, pp. 436-438. Gives comparison of Trichia proximella Karst, and 
T. Jackii Karst, and a series published in Journal of Mycology, Aug., 
1886, as possessing diagnostic characters of T. affusis, DBy. and T. Jackii, 
Rostf. Decides all three as forms differing only in development. (D. G. F.) 
650. Wingate, Harold. Note on Stemonitis maxima, Sz. Proc. Acad. Nat. Sci. Phila., 
Part ii. Phila., 1891, p. 438. Gives result of examination of type specimens 
of Stemonitis maxima, Sz., found in Schweinitz herbarium which he decides 
is identical with a form found commonly in vicinity, to be issued shortly 
in N. Am. Fungi. (D. G. F.) 
(See also No. 652.) 
