184 
* * C. —OOMYCETES. 
568. Halsted, B. D. Notes upon Peronosporeae for 1891. Bot. Gaz., vol. 16, No. 12, Dec. 
15, 1891, pp. 338-340. Gives notes oil the following species: Phytophtkora 
infcstans, Sclerospora graminicola, Plasmopara viticola, Plasmopara pygmcea, 
Plasmopara geranii, Premia lactucae, Peronospora parasitica, Peronospora Cuben * 
sis, Peronospora effusa , P. potent ill at, Cystopus Ipomce panduratce [sic.], C. Can¬ 
didas, C. portulacce. Notes Alyssum maritimum as new host for P. parasitica; 
and Potentilla grandiflora as new host to the country for P. potentillce. (D. 
G. F .) 
569 * Massalongo, C. Sull’ alterazione di colore dei fiori dell’ Amarantus retroflexus in- 
fetti dalle oospore di Cystopus Bliti, D’By. Nuovo Giorn. Bot. Ital., vol. 23, 
No. 1, Firenze, 8 gennaio 1891, pp. 165-167. Records the finding of oospores 
of Cystopus bliti D’By. in inflorescenses of Amarantus retroflexus. The flow¬ 
ers attacked assume a more or less pronounced red color and are thus ren¬ 
dered more conspicuous. The author suggests that the oospores formed in 
these reddish flowers are perhaps distributed by animals, while those occur- 
ing as usual in leaves are distributed by the wind; suggests also that here 
is an analogy to heterocarpism in higher plants, except that the difference 
between the oospores is not a morphological one, but simply one of different 
comportment in regard to the organs of the host plant attacked. (W. T. S.) 
570. Spe gazzini, Carolus. Phycomycetoae Argentinae. Revista Argentina de Hist. 
Nat., vol. 1, Buenos Aires, Feb., 1891, pp. 28-38. Gives list of species of 
Pliycomycetes, and describes new species as follows: Mucor mucedo var. a 
b, M. platensis, Cystopus platens is, on leaves of Bcerhaavia hirsuta, Chlospora n. 
gen., C. vastatrix, in bulbs of Allium coepce; Peronospora nicotiance, on leaves 
of Nicotiana longiflora. The species in the list, 37 in all, are accompanied by 
notes on hosts, measurements of spores, etc. (J. F. J.) 
(See also Nos. 371, 377, 545, and 567.) 
D.— ZYGOMYCETES. 
(See Nos. 543, 567 and 570.) 
E.—BASIDIOMYCETES. 
571. Allen, A. and Spiers, W. British Agaricini. Internat. Jour. Micros., and Nat. 
Sci., 3d ser., vol. 1, London and New York, Aug., 1891, p. 233, 7 lines. Notes 
that there are 1,400 species in the British Isles, 134 edible and 30 poisonous. 
(M.B.W.) 
572 Cooke, M. C. Additions to Dsedalea. Grevillea, vol. 19, No. 92, London, June, 
1891, pp. 92-93. Descriptions of five new species of Dwdalea from Herb. 
Berk., D. Eatoni, Berk., D. subcongener, Berk., D. flab ellum, Berk., 1). Anda- 
manni, Berk., D. Mulleri, Berk. (M. B. W.) 
573. Cooke, M. C. Additions to Merulius. Grevillea, vol. 19, June, 1891, p. 108-109, 
Describes as new Merulius sordidus, B. & C., M. rimosus, Berk, in herb., M, 
pelliculosus, and states that M. pallens, Schwein. (not of Berkeley), is the 
same as M. corinum ; and M. tcrrestris, B. & Br. (undescribed), is the same as 
AI. brassiccefolius. (M.B.W.) 
574. Cooke, M, C. A new subgenus of Agaricus. Grevillea, vol. 19, June, 1891, pp. 
104-405. Describes the new subgenus Metraria founded on a species from 
Australia, which is also described; Agaricus ( Metraria ) insignis, C. & M, 
(M.B.W.) 
575. Cooke, M. C. British Thelephorei. Grevillea, vol. 19, March, 1891, pp. 64-67. 
Synopsis of the genus Stereum with descriptions of the species. (M, B. W.) 
