98 



JOURNAL OF MYCOLOGY. 



Vol. 1, 



tion being formed at each resting point which is also marked hy a ring of 

 conidia surrounding the bundle of hj^phre at these points. This differs 

 from A. sulfurea. Winter, of which we have a specimen, in its smaller 

 septate sporidia and the presence of conidia. The sporidia of A. aumn- 

 tiaca seem to be mature, and we do not think they ever become 3-septate 

 as in A. sulfur ea. 



In Grevillea, vol. 4, p. 156, we find the following brief diagnosis of 

 Caimodium 2oelliculosum, B. & Eav.: ''Threads of the mycelium erect, 

 trifid at the apex, after the fashion of a Triposporium, shorter than the 

 oblong, constricted perithecia.'- Specimens of this production have 

 been distributed in De Thumen's Mycotheca, 2059, and in Rav. F. Am., 

 no. 79, on living leaves of Prunus Chicasa. from South Carolina, but in 

 our copies of both these exsiccati the specimens are without perithecia 

 and show no trace of ''threads trifid at the apex." Specimens, however, 

 collected by Dr. Martin, at Green Cove Springs, Florida, on leaves of 

 Magnolia glauca, in February and March, 1SS3, show both the pj'cnidial 

 and ascigerous perithecia and the Triposporium-like tips of the threads 

 of the mycelium. As this latter character is a striking one, and as our 

 specimens on Magnolia agree well enough in other respects with the diag- 

 nosis above quoted and with the specimens in the exsiccati referred to, 

 we consider it tolerably certain that they represent the mature state of 

 the species in question, and have written out a detailed description as 

 follows : 



CAPN0DIU3I PELLICUL0SU3I, B. & Rav.— On leaves of Magnolia 

 glauca, February. Mycelium epiphyllous, forming a thin, sootj'-colored 

 layer on the surface of the leaf and consisting of closely septate, brown, 

 subrectangularly branched and interwoven tlireads, 5 — 8 thick, with 

 each cell or joint nucleate and bearing when well developed, stellately 

 3 — i-parted conidia, much like those of Triposporium, nearly hyaline at 

 first, becoming brown, each arm 4—5 septate and nucleate, 7—9 /J- thick 

 at the base and 50—75 long, tapering to an obtuse point at the apex. 

 Pycnidial perithecia growing like thick branches from the sides of the 

 prostrate threads, membranaceous, of rather coarse cellular structure, 

 oblong or flask-shaped, 75—200 x 30—50 /^-, apex subobtuse and subfimbri- 

 ate, discharging countless, minute, hyaline, oblong spores, 3—4 x 1 fJ-. 

 Sometimes these perithecia are quite globose and formed by the enlarge- 

 ment of one of the component cells of a thread or hypha. There are 

 also produced from the mycelium cylindrical, brown, multiseptate coni- 

 dia, 70— SO x 6—7 /-t, like the conidia of Hehninthosporium. Ascigerous 

 perithecia seated on the mycelium, depressed-globose, membranaceous, 

 100—150 diameter, with brown, septate appendages like those of an 

 Erysiplie 15—25 in number, 75—100 .'J- long. Asci at first oblong, becoming 

 ellipsoidal and about 40—25 Sporidia crowded, broad-fusiform, hya- 

 line, 1-septate at first, becoming 3-septate at maturity, and 15— 22 x 4—7 Z-^. 



AsTERiNA STOMATOPHORA, E. & M.— On living leaves of Quercus 

 launfoha, February and March. Perithecia lenticular, scattered, small. 



