330 
9S9. Oudemans, C. A. J. A. Phacidium pusillum Libert. <[Hedwigia, Bd. xxx, Dres¬ 
den, Sept. n. Oct., 1881, pp. 248-250. 
The author found specimens and investigated them in the fresh condition in the summer 
of 1891. As a result of his studies he amends and completes Libert’s description and corrects 
some statements of Roumeguere and Saccardo regarding the species. (W. T. S.) 
(See also Nos. 950 and 986.) 
IX. —IMFERFECT AND UNCLASSIFIED FORMS. 
a.—Hyphomycetes and Stilbece. 
990. Atkinson, Geo. Some Cercosporae from Alabama. <\Jour. Elisha Mitchell Scien. 
Soc., vol. viii, pt. 2, Feb. 24, 1892 [separate pp. 36]. 
Discusses the position of Cercospora in classification and mentions the forms under which 
it is known. Gives a brief sketch of life history of genus and notes paucity of knowledge 
in relation to complete life history of many species. Gives description of 79 species, with a 
few notes on synonomy and describes the following as new: Cercospora tephro&ice on Tephro- 
sia hispidula; C. truncatella on Passijlora incarnata; C. agrostidis on Agrostis sp.; ? C. avicu- 
laris VVint., var. sagittati, on Polygonum sagittatum,- C. anthelmintica on Chenopodium am- 
brosioidesvav. anthelminticum; C.jussiceceon species of Jussicea; C.fusimaculans on Panicum 
dichotomum; C. setarice on Setaria glauca; C. asterata on Aster sp. ?; C. richardioecola on 
Rickardia africana; C. alabamensis on Ipomoea purpurea; C.fiagellifera on Galactia pilosa ; 
C. papillosa on Verbena cult.; C. solanicola on Solarium tuberosumC. ludwigice on Ludwigia 
alternifolia; C. virginiance on Diodia virginiana; C. crinospora on Rhyncospora glomerata,- 
C. atrornarginalis on Solarium nigrum; C. tropceoli on Tropoeolum cult.; C. tesselata on 
Eleusine cegyptica; C. seriata on Sporobolus asper; C. althocina , var. rnodiolce. on Modiola mul- 
tifida; C. clitorim on Clitoria mariana; C. diospyri , var. ferruginosaC. jatrophce on Jatropha 
stimulosa; C. maeroguttata on Chrysopsis graminifolia; C. pinnulcecola on Cassia nictilans; 
C. erythrogena on Rhexia mariana , etc,; C. rigospora on Solarium nigrum (?),- C. catenospora 
on Sambucus canadensis , and C. erechtites on Erechtites hieracifolia. (J. F. J.) 
991. MacMillan, C. Note on a Minnesota species of Isaria and an attendant Pachybasium. 
<Mour. Mycol., vol. vi, Washington, Sept. 10,1890, pp. 75-76. 
Describes features presented by Isaria spliingum , parasitic on a tussock moth, and Pachy¬ 
basium hamatum (?), which appeared in a gelatin culture tube. Queries if the latter be not 
a form of the Isaria. (J. F. J.) 
f)92. Masske, George. A new genus of Tubercularieae. <(Ann. of Bot., vol. v, Lon¬ 
don, Nov., 1891, p. 509, fig. 1. 
Describes Hobsonia , n. gen. Berk., in herb., with n. sp. H. gigaspora Berk, in herb. [The 
figure is called II. macrospora.) From Venezuela. (J. F. J.) 
(See also, Nos. 714, 716, 742. 747, 756, 764, and 903.) 
b.—Sjphceropsidece and Melanconece. 
993. Cuboni, G. Diagnose di una nuova specie di fungo excipulacso. <Niiovo Gior. 
Bot. Ital. (Bull. d. Soc.), vol. xxm, Firenze, 5 Ottobre, 1891, p. 577. 
Describes new genus and new species on decorticated wood of Morus alba , Phceodiscula 
celottii , in honor of collector. Thinks genus should form a new section of the Phceosporeai. 
(D. G.F.) 
994. Ellis, J. B., and Everhart, B. M. Leptothyrium periclymeni, Desm. <Mour. 
Mycol., vol. vi, Washington, Jan. 6, 1891, p. 116. 
Notes occurrence of species on Lonicera from Ontario and proposes to call it Leptothyrium 
perilcymeni , var. americanurn. (J. F. J.) 
995. Martelli [U]. [Alcuni funghi che attacano le olive.] <Nuovo Gior. Bot. Ital. 
(Bull. d. Soc.), vol. xxm, Firenze, April 6, 1891, p. 324. 
Report of secretary of note presented to the society in regard to a new Phoma on olives 
likely to prove disastrous, which he proposes to call P. pallens , although reserving the de¬ 
scription for a future meeting, together with that of an associated form, possibly the sper- 
mogonial form of the Phoma. (D. G. F.) 
(See also, Nos. 716, 732, 744, 761, and 779.) 
c. — Miscellaneous. 
996. Mueller, Dr. J. Critique de “l’Etude” du Docteur Wainio. <Rev. Mycol., vol. 
xiv, Toulouse, Jan. 1, 1892, pp. 33-40. 
An article written at the request of the editor of the Revue for the purpose of discussing 
the system of classification proposed by Dr. Wainio in an article on “The natural classifica¬ 
tion and morphology of the Lichens of Brazil.” The author takes issue with Dr. Wainio 
on the main points of the original article. He rejects the theory of symbiosis, the definition 
of a lichen, and the characters used as a basis of classification. ’ (E. A. 5.) 
