NOTICES OF NORTH AMERICAN FUNGI. 



11 



On dry exposed wood. Virginian Mountains. No. 3297. 



Elongated, rough, with minute granules depressed ; disc ex- 

 tremely narrow ; asci clayate ; sporidia cymbteform, with about 

 five septa, sometimes abruptly bulging in the centre on the more 

 convex side, -0016 long. Allied to the last, but the sporidia are 

 very different. 



* Hysterium varium. Grev. — On dead wood. Car. Inf. No. 

 2087. Approaching Lophium. 



* Hysterium lineaze. Ft. — On logs of Taxodium. Car. Inf. 

 Ravenel. No. 1455. On dead wood. New England, Russell. 

 ^0. hd^\, v^iih. Patellariaatrata. Car. Sup. On oak. No. 851, 

 On Gleditschia. No. 885. 



I find in these specimens spindle-shaped sporidia, constricted 

 strongly in the centre, multiseptate, 002--0015 long. 



* Hysterium pzaelongum, Schrvein.— On dead wood. Texas, C. 

 Wright. No. 3894, 3916. 



Sporidia elliptic, probably resembling when mature those of H. 

 elongatum. 



793. Hysterium fusiger. B. (^- C. — Elongatum flexuosum ; spori- 

 diis fusiformibus quandoque curvatis multiseptatis. 



On dead wood. New England, Sprague. No. 5830. 



Elongated, flexuous, lying in various directions ; sporidia fusi- 

 form, with about eight septa, sometimes strongly curved, -001 

 long. Resembling somewhat H. tortile and graphicum, but with 

 different sporidia. 



* Hysterium rufulum. Spreng. — On Rhus radicans. Car. Sup. 

 No. 720, 912. 



794. Hysterium hiascens. B.d-C. — Superficiale ellipticum,labris 

 involutis lajvibus ; disco aperto ; sporidiis ellipticis fenestratis. 



On dry bark of Quercus hicolor. No. 5883. Car. Inf. No. 

 3416. On Celtis occidentalis. Car. Sup. No. 287 (specimens in 

 bad conditic)n). 



Allied to the last with the sporidia of H. elongatum. 



* Hysterium flexuosum. Schmein. — On Betula rubra, Acer 

 rubrum, Vitis riparia, Cornns sericea, Andromeda arborea, &c. Car. 

 Sup. No. 1, 23, 63, 105, 109, 117, 316, 708, 796, 845. Car. Inf. 

 No. 2343. 



* Hysterium Fraxini. P.— On ash. Car. Sup. No. 727. 



* Hysterium Smilacis. Schrvein. — On twigs of Smilax tamnoides. 

 Car. Sup. No. 93. 360. 



795. Hysterium Cyrillee. B. (^ C— Elevatum, ellipticum opacum, 

 lieve ; sporidiis biseriatis magnis oblongis endochromate bipartite. 



On twigs of Cyrilla. Car. Inf. No. 2747, 



Scattered, elevated, opaque, elliptic, even; sporidia biseriate, 

 oblong, -004 long ; endochrome divided into two portions, one of 

 which is less than the other ; epispore thick. 



