24 The Botanical Gazette. [January. 



O. cry s tallinum Ce.sati. This is said by Saccardo to be 

 described on "p. 299" of the Botan. Zeitung, and figured in 

 Hedwigia, 1, Taf. IV. fig. 3. I have not seen the original 

 description. On Taf. IV, Vol. II. of Hedwigia fig. 3 repre- 

 sents an Oedocephalum which might be 0. glomerulosum y but 

 it is too coarse and ill-drawn to give any idea of its identity. 

 A tedious search in the accompanying text shows no reference 

 to it. According to Saccardo, the spore> are hyaline, 

 oblong, ovoid, becoming subochraceous. On Sporidesmium : 

 distributed in in Klotsch, Herb. Viv. Myc, 1 ( .»74. 



0. dichotomum Preuss: Fungi Hoyersw. No. 271. This is 

 peculiar for its successively dichotomous branches, which 

 terminate in a head bearing brownish, finely muriculate 

 globoso-eltipsoid spores. On Polyporus flavus. 



Cost. 



fi 



P 



0. glomcrnlosum (Bulliard) Saccardo: see above. 



0. hyalinum Saccardo: Sylloge IV, p. 40, Bonorden, Abh. 

 a. d. Geb. d. Mycol. II. p. 95, Taf. I, fig. II, sub Periconia. 

 Hyphae colorless, hardly septate. Head yellowish. Conidia 

 small, spherical, hyaline. On decayed leaves. This seems 

 too near O. albiduvi Sacc. and O. byssinum (Bon.). 



O. lacticohr Berkeley & Broome: Ann. & Mag. of Nat. 

 Hist., May, 1865, 3d Ser., Vol. XV, p. 403, PI. XIV, fig. 

 12. Brick red. Fertile hyphae simple. . Spores figured as 

 elliptical and verrucose ; described as spherical, granular, 

 15-20/* long, with a basal appendage. On cow dung. The 



figures are coarse and indefinite, but the species seems quite 

 distinct. r ^ 



O pyri forme Saccardo : Sylloge, p. 49, Bonorden Handl. 

 J, A1 S;M, P- H3, Taf. IX., fig. 196, sub Periconia. 

 1 he hyphae of this species are described as aseptate. The 

 spores are spherical or oval (figured as echinulate or verrucu- 

 lose) slightly blackish, hyaline. The head is grey green, and 

 the whole plant in gross appearance resembles Penicillium 

 glaucum. On Polyporus flavus. 



O. Preussii Saccardo: Sylloge, Vol. IV., p. 49, Preuss, 

 hung. Hoyersw., No. 104, sub Periconia alba. Hyphae white, 

 u Cpt ,f e u .^P° res subglobose, smooth. This species can 



hardly be identified from the description. On decaying leaves. 



O. roseum Cooke: Grevillea, Vol. I, p. 184, ibid Vol. II., 



I 1. SW, fig. 8. "Rose pink, effused, or in minute punctiform 



