16 



NOTICES OK XORTH AMERICAN FUNGI. 



619. Septonema connatum. B. ^- C— Pulvillis sparsis ; floccis 

 ramosis, articulis ellipticis varie septatis. 



On Salix Russeliana. Pennsylvania, Micbener. No. 4089, 

 4195. 



Forming little scattered tufts, consisting of slightly branched 

 threads, springing from a compact mycelium ; joints elliptic, with 

 at first a single horizontal septum, which is soon divided vertically 

 so as to form four divisions. 



520. Septonema multiplex. B. Sc C. — Effusum ; floccis varie ra- 

 mosis, articulis oblongis irregularibus 3-5 septatis. 



On oak limbs. Car. Inf. No. 2751, 4033. Ravenel. No. 

 1563. 



Effused, black ; threads branched; joints varying in length and 

 in the number of the articulations, rather irregular, more or less 

 oblong. 



521. Septonema dendryphioides. B. <L- C. — Sparsum, puncti- 

 forme ; floccis ramosis, articulis subquadriseptatis oblongis an- 

 gustis. 



On pine wood. Car. Inf. No. 2595. 



Forming little scattered dot-like tufts ; threads branched ; joints 

 narrow, oblong, with generally four septa, which are not irregular 

 as in the last, nor are they so large or broad. 



522. Septonema aspzellum. B. S( C. — Sparsum punctiforme ; ar- 

 ticulis denmm echinatis triseptatis utrinque appendiculatis. 



On stems of some herbaceous plant. No. 4120. 



Forming little scattered dot-like tufts ; threads with an irregular 

 short hyaline stem; joints '0013 long, triseptate, with a short 

 appendage at either extremity, at first even, then with each divi- 

 sion contracted in the middle, with short echinulations at the 

 commissures. 



523. Spozidesmium compactum. B. <$• C. — Effusum, aterrimum J 

 sporis subglobosis irregularibus demum biseptatis. 



On ash wood. Car. Inf. 



Effused, jet black, consisting of a compact mass of shortly pedi- 

 cellate irregular subglobose bodies, with a uniform dark endochrome 

 divided at length by two septa. 



* Sporidesmium melanopum. B. 



On apple. New England. Sprague. No. 5829. 



* Sporidesmium atrum. i/i.— Helysidm atrum. Cd. 

 On dead wood. Car. Sup. No. 4448. 



* Spozidesmium Iiepzazia. B. & Br. 



On maple. Car. Inf. No. 3406. On chestnut. Massachusetts. 

 No. 3372, 3374. Pennsylvania. Michener, No. 4146. On 

 some unknown wood. Car. Inf. No. 3403. Virginian Moun- 

 tains. No. 3306. U.S. No. 5878. On Taxodium. Car. Inf. 

 No. 3058. 



