NOTICES OF NORTH AMERICAN FUNGI. d 



On dead twigs of Morus multicaulis. Car. Inf. No. 2712. 



Very minute ; stem rather thick, nearly equal ; head subglobose ; 

 asci linear, sporidia in a single row, oblong, 0003 long, about ^ as 

 much broad. Occasionally the stem is divided at the base. 



759. Sphinctxina guminae. B.<LMont. — Brevis turbinata; stipite 

 sursum incrassato ; ascis subclavatis ; sporis globosis ; paraphy- 

 sibus linearibus granuliferis. 



On gum of Cerasus serotina. Car. Inf. No. 2167. 



Stem short, incrassated upwards ; head turbinate ; asci slightly 

 clavate ; sporidia uniseriate globose ; paraphyses linear, granular 

 ■within. In Spinctrina turbinata the sporidia are elliptic and larger. 



* Tympanis fraxini. Sclmein. — Virginian Mountains. No. 

 3366, 3368. 



* Tympanis conspexsa. Fr. — On Pnimis. New England, 

 Sprague. No. 5815. Pennsylvania, ISIichener. No. 5143. On 

 peach. Sartwell. No. 3071. 



* Tympanis fasciculata. Sclircein. — On Vihurnum dentatum. 

 Pennsylvania, Michener. No. 4344, 3557. 



760.' Tympanis Ravenelii. B. — Sparsa vel fasciculata ; cupulis 

 breviter pedicellatis marginatis, disco cinereo ; sporidiis biconicis 

 commissura medioque constrictis. 



On branches of Carpinus. Car, Lif. No. 2018, 1816. Eave- 

 nel. No. 1676, 1816. On Ilex pn'noides. Alabama, Peters. No. 

 3989. 



Scattered or fasciculate, cups strongly marginate, shortly pedi- 

 cellate, disc cinereous ; sporidia biconical, the divisions and com- 

 missure constricted, with occasionally a globular body at the com- 

 missure, 0013--0015; paraphyses crowned with narrow obovate 

 conidia. 



* Tympanis turbinata. Scliwein. — On Viburnum prunifolium. 

 Penns., Michener. Asci obtuse ; sporidia miiltitudinous. 



761. Tympanis gyrosa. B. ^ (7.— Fasciculata, cupulis arete com- 

 pressis gyrosis. 



On fallen branches. Virginian Mountains. No. 3338. 

 On dead apple branches. New England, Kussell. No. 5940. 

 Fasciculate ; cups closely compressed, forming a gyrose patch. 

 The species is certainly distinct, but I have not seen any fruit. 



762. Tympanis zhabdospora. B. 4- <7.— Fasciculata, cupulis ele- 

 vatis flesuosis, acute marginatis ; sporidiis filiformibus. 



On Acer. New England, Sprague. No. 5831. 

 Fasciculate, cups crowded, elevated, flexuous, acutely margined ; 

 sporidia filifoiTn, nearly straight. 



763. Tympanis stictica. B. ^ C— Punctiformis, cupulis concavis 

 margine elevato ; ascis clavatis ; sporidiis fusiformibus curvatis 

 quadrinucleatis. 



On Salix Babylonica. 



