NOTICES OF NORTH AMERICAN FUNGI. 170 



Perithecia minute, hysteriiform, obtuse; spores oblong, -00025 

 long, under a high magnifier surrounded with a broad hyaline 

 border. 



* Sphaeronema rufum. /•>.— On bark of Magnolia qlauca. Car. 

 Inf. No. 4923 ; 



Spores extremely minute, with molecular motion. 



* Sphaeronema glomeratum. J font— On oak twigs. Car. Inf. 

 No. 725. ' 



Sporophores with a few short branches above ; spores minute, 

 shortly oblong. 



407 (bis). Sphaeronema viticola. B. § C— Perithcciis gregariis 

 quandoque congestis crumpentibus conicis tate truncatis ; pulveru- 

 lentis parietibus crassis. 



On branches of Vine. Car. Inf. No. 1408. 



Gregarious, or occasionally almost connate, erumpent ; perithecia 

 conical, widely truncate, with thick walls, pulverulent. Immature ; 

 allied to the last. 



408. Sphaeronema Sambuci. B. <$• C. — Perithcciis sparsis crum- 

 pentibus obtusis ; sporis minutis oblongis curvulis ; sporophoris 

 ramosis. 



On branches of Elder. Maine, Rev. J. Blake. No. 6298. 



Perithecia erumpent, scattered, obtuse ; spores minute, sausage- 

 shaped, sporophores branched as in Sphaeronema glomeratum. No. 

 5040. Car. Sup. appears to be a smaller form. 



* Darluca filum. Cast.— Parasitic on various uredines. On 

 Smilax. Car. Inf. No. 1511. On Juncus dichobomus. Car. Inf. 

 No. 3214. 



On clover. Massachusetts. No. 3384. On Pycnanthemum. 

 Mountains of New York. No. 4429. On Viola pubescens. Penn- 

 sylvania, Michener. No. 4831. On Tea. Alabama, Beaumont. 

 No. 4664. On Cy penis. Car. Inf. Ravenel. No. 1656. On 

 Lespedeza. Car. Inf. No. 2084. On Rhjncospora. Florida. 

 No. 757. 



408 (bis). Sphaeropsis anomala. B. $ C— Perithcciis sparsis nudis 

 hemisphericis sporis magma obovatis e pedicellis simplicibus vel 

 furcatis oriundis. 



On dead wood. Car. Inf. 1790. 



Perithecia superficial, scattered, minute hemispherical; depressed, 

 minutely granulated ; spores obovate, *013 long, springing from 

 hyaline pedicels which are simple or forked below. In one case the 

 spore was lemon-shaped, and in a young spore the endochrome was 

 retracted to either end. Clearly allied to S. placenta, B. & C. 

 Linn. Journ., x., p. 352. 



409. Sphaeropsis hyalina. B. 4 C— Perithcciis cpidermide sub- 

 tectis ; sporis ellipticis hyalinis. 



On twigs of Ribis rubrum. Pennsylvania, Michener. No. 4093. 



